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  • Polisport Motocross (MX) Front Fender for Beta  X-Trainer, RR 4T, RR 2T (20-26) & RR X-Pro / Race (25-26)  Dirt Bike - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - White Polisport Motocross (MX) Front Fender for Beta  X-Trainer, RR 4T, RR 2T (20-26) & RR X-Pro / Race (25-26)  Dirt Bike - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - White

    Polisport Polisport Motocross (MX) Front Fender for Beta X-Trainer, RR 4T, RR 2T (20-26) & RR X-Pro / Race (25-26) Dirt Bike - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - White

    2 - 4 Business Days

    Polisport's front fenders are produced with Polisport's exclusive technology, making them more durable, with a perfect combination of resistance and flexibility. On top of that, the Polisport replica plastics have a glossy finish and colors that perfectly match the stock parts and make your dirt bike look great. Polisport is a high quality aftermarket plastics manufacturer that also provides plastics to some of the top motorcycle brands. This Beta RR front fender is the perfect option to replace your motorcycle's plastics.

    2 - 4 Business Days

    $56.20 $44.96

  • Polisport Motocross (MX) Front Fender for Kawasaki KX450F (2016-2026) KX250F (2017-2026) Dirt Bike - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - Black Polisport Motocross (MX) Front Fender for Kawasaki KX450F (2016-2026) KX250F (2017-2026) Dirt Bike - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - Black

    Polisport Polisport Motocross (MX) Front Fender for Kawasaki KX450F (2016-2026) KX250F (2017-2026) Dirt Bike - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - Black

    2 - 4 Business Days

    Polisport's front fenders are produced with Polisport's exclusive technology, making them more durable, with a perfect combination of resistance and flexibility. On top of that, the Polisport replica plastics have a glossy finish and colors that perfectly match the stock parts and make your dirt bike look great. Polisport is a high quality aftermarket plastics manufacturer that also provides plastics to some of the top motorcycle brands. This Kawasaki front fender is the perfect option to replace your motorcycle's plastics.

    2 - 4 Business Days

    $56.20 $44.96

  • Polisport (MX) Front Fender for KTM SX/SX-F/XC (16-22), XC 250/300 & SX 250 (17-22), EXC/EXC-F/XC/XC-W/XCF-W, XC-W (17-23),XC 125 (21-22) Dirt Bike-OEM Quality, Durable, Flexible, Perfect Fit - White Polisport (MX) Front Fender for KTM SX/SX-F/XC (16-22), XC 250/300 & SX 250 (17-22), EXC/EXC-F/XC/XC-W/XCF-W, XC-W (17-23),XC 125 (21-22) Dirt Bike-OEM Quality, Durable, Flexible, Perfect Fit - White

    Polisport Polisport (MX) Front Fender for KTM SX/SX-F/XC (16-22), XC 250/300 & SX 250 (17-22), EXC/EXC-F/XC/XC-W/XCF-W, XC-W (17-23),XC 125 (21-22) Dirt Bike-OEM Quality, Durable, Flexible, Perfect Fit - White

    2 - 4 Business Days

    Polisport's front fenders are produced with Polisport's exclusive technology, making them more durable, with a perfect combination of resistance and flexibility. On top of that, the Polisport replica plastics have a glossy finish and colors that perfectly match the stock parts and make your dirt bike look great. Polisport is a high quality aftermarket plastics manufacturer that also provides plastics to some of the top motorcycle brands. This KTM front fender is the perfect option to replace your motorcycle's plastics.

    2 - 4 Business Days

    $56.20 $44.96

  • Polisport 8554800001 Front Fender for KTM SX85 2018 and Newer – OEM‑Style Durable Orange Motocross Front Mudguard Polisport 8554800001 Front Fender for KTM SX85 2018 and Newer – OEM‑Style Durable Orange Motocross Front Mudguard

    Polisport Polisport 8554800001 Front Fender for KTM SX85 2018 and Newer – OEM‑Style Durable Orange Motocross Front Mudguard

    2 - 4 Business Days

    The Polisport 8554800001 Front Fender is a high‑quality OEM‑style replacement designed specifically for KTM SX85 models from 2018 onward. Manufactured using Polisport’s premium injection‑molded polypropylene, this fender offers excellent durability, flexibility, and long‑lasting color consistency. The bright KTM‑orange finish matches factory plastics perfectly and resists fading, scratching, and impact damage. Built to withstand roost and race‑level abuse, this fender installs easily using the original mounting points, making it an ideal replacement for cracked, worn, or discolored plastics. Trusted by riders worldwide, Polisport delivers reliable performance for both racing and training.

    2 - 4 Business Days

    $56.20 $44.96

  • Polisport Motocross (MX) Front Fender for Honda CRF450R (2021->) 250R/RX/CRF (2022->) Dirt Bike - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - Red Polisport Motocross (MX) Front Fender for Honda CRF450R (2021->) 250R/RX/CRF (2022->) Dirt Bike - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - Red

    Polisport Polisport Motocross (MX) Front Fender for Honda CRF450R (2021->) 250R/RX/CRF (2022->) Dirt Bike - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - Red

    2 - 4 Business Days

    Polisport's front fenders are produced with Polisport's exclusive technology, making them more durable, with a perfect combination of resistance and flexibility. On top of that, the Polisport replica plastics have a glossy finish and colors that perfectly match the stock parts and make your dirt bike look great. Polisport is a high quality aftermarket plastics manufacturer that also provides plastics to some of the top motorcycle brands. This Honda front fender is the perfect option to replace your motorcycle's plastics.

    2 - 4 Business Days

    $56.20 $44.96

  • Polisport (MX) Front Fender for Yamaha YZ 250F/WR 250F (01-05) WR 400F (00-02) YZ 426F (01-02) YZ 450F/WR 450F (03-05) YZ 125/250 (00-05)-OEM Quality, Durable, Flexible & Perfect Fit - Blue Polisport (MX) Front Fender for Yamaha YZ 250F/WR 250F (01-05) WR 400F (00-02) YZ 426F (01-02) YZ 450F/WR 450F (03-05) YZ 125/250 (00-05)-OEM Quality, Durable, Flexible & Perfect Fit - Blue

    Polisport Polisport (MX) Front Fender for Yamaha YZ 250F/WR 250F (01-05) WR 400F (00-02) YZ 426F (01-02) YZ 450F/WR 450F (03-05) YZ 125/250 (00-05)-OEM Quality, Durable, Flexible & Perfect Fit - Blue

    2 - 4 Business Days

    Polisport's front fenders are produced with Polisport's exclusive technology, making them more durable, with a perfect combination of resistance and flexibility. On top of that, the Polisport replica plastics have a glossy finish and colors that perfectly match the stock parts and make your dirt bike look great. Polisport is a high quality aftermarket plastics manufacturer that also provides plastics to some of the top motorcycle brands. This Yamaha front fender is the perfect option to replace your motorcycle's plastics.

    2 - 4 Business Days

    $56.20 $44.96

  • Polisport 8585200002 Front Fender Fits Beta RR 2T/4T &  X-Trainer 2020‑Onward, RR X-Pro 25-26 – Black OEM‑Style Replacement Durable Injection‑Molded Motocross Front Fender Polisport 8585200002 Front Fender Fits Beta RR 2T/4T &  X-Trainer 2020‑Onward, RR X-Pro 25-26 – Black OEM‑Style Replacement Durable Injection‑Molded Motocross Front Fender

    Polisport Polisport 8585200002 Front Fender Fits Beta RR 2T/4T & X-Trainer 2020‑Onward, RR X-Pro 25-26 – Black OEM‑Style Replacement Durable Injection‑Molded Motocross Front Fender

    2 - 4 Business Days

    The Polisport 8585200002 Front Fender is a premium OEM‑style replacement designed for Beta RR & X-Trainer models from 2020 onward, and RR X-Pro 25-26. Manufactured using Polisport’s high‑quality injection‑molded polypropylene, this fender delivers excellent durability, flexibility, and impact resistance — ideal for enduro, trail riding, and off‑road competition. Its precise OEM‑matched shape ensures perfect fitment and seamless integration with the bike’s bodywork. The sleek black finish provides a clean, factory‑fresh appearance, making it an ideal replacement for worn, faded, or damaged plastics. Lightweight yet tough, this front fender installs easily using your bike’s existing hardware, offering a fast and reliable way to refresh your Beta RR’s front end.

    2 - 4 Business Days

    $56.20 $44.96

  • Polisport Motocross (MX) Front Fender for Honda CRF 450R (04-08), CRF 250R (04-09), & CR 125R/250R (04-07) Dirt Bikes - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - Red Polisport Motocross (MX) Front Fender for Honda CRF 450R (04-08), CRF 250R (04-09), & CR 125R/250R (04-07) Dirt Bikes - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - Red

    Polisport Polisport Motocross (MX) Front Fender for Honda CRF 450R (04-08), CRF 250R (04-09), & CR 125R/250R (04-07) Dirt Bikes - OEM Quality, Durable Gloss Polypropylene (DGP), Flexible & Perfect Fit - Red

    2 - 4 Business Days

    Polisport's front fenders are produced with Polisport's exclusive technology, making them more durable, with a perfect combination of resistance and flexibility. On top of that, the Polisport replica plastics have a glossy finish and colors that perfectly match the stock parts and make your dirt bike look great. Polisport is a high quality aftermarket plastics manufacturer that also provides plastics to some of the top motorcycle brands. This Honda front fender is the perfect option to replace your motorcycle's plastics.

    2 - 4 Business Days

    $56.20 $44.96

  • Last stock! Athena P400485100016 478cc Big Bore Cylinder Kit (98mm Bore) - Forged Piston Performance Upgrade, Converts 450cc to 478cc, Compatible with Yamaha YFZ450 ATV, YZ450F, and WR450F Athena P400485100016 478cc Big Bore Cylinder Kit (98mm Bore) - Forged Piston Performance Upgrade, Converts 450cc to 478cc, Compatible with Yamaha YFZ450 ATV, YZ450F, and WR450F

    Athena Athena P400485100016 478cc Big Bore Cylinder Kit (98mm Bore) - Forged Piston Performance Upgrade, Converts 450cc to 478cc, Compatible with Yamaha YFZ450 ATV, YZ450F, and WR450F

    2 in stock 2 - 4 Business Days

    UPGRADE YOUR RIDE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 450cc four-stroke engine with the Athena Big Bore Cylinder Kit (Part No. P400485100016), a premium race-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 478cc powerhouse. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to deliver a substantial increase along the entire power curve while maintaining strict original-equipment reliability. This complete bolt-on kit comes loaded with everything required for a flawless installation—including a widened water-jacket aluminum cylinder, a high-performance forged piston coated with molybdenum, premium rings, wrist pin, clips, and a specific high-tightness multi-layer gasket set—allowing you to dramatically increase track and trail performance without requiring any machining or structural engine modifications to your factory crankcase.

    2 in stock 2 - 4 Business Days

    $759.95

  • Last stock! Athena P400485100008 Standard Bore Cylinder Kit (54mm, 125cc) - Premium 2-Stroke Top End Rebuild Kit with Forged Piston & Gaskets, Compatible with Yamaha YZ125 2001-2004 Athena P400485100008 Standard Bore Cylinder Kit (54mm, 125cc) - Premium 2-Stroke Top End Rebuild Kit with Forged Piston & Gaskets, Compatible with Yamaha YZ125 2001-2004

    Athena Athena P400485100008 Standard Bore Cylinder Kit (54mm, 125cc) - Premium 2-Stroke Top End Rebuild Kit with Forged Piston & Gaskets, Compatible with Yamaha YZ125 2001-2004

    2 in stock 2 - 4 Business Days

    RESTORE YOUR DIRT BIKE TO PEAK OEM PERFORMANCE Bring back the crisp throttle response, razor-sharp power delivery, and high-revving factory reliability of your 125cc two-stroke engine with the Athena Standard Bore Cylinder Kit (Part No. P400485100008), a premium OEM-style replacement package engineered and manufactured in Italy. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to match or exceed original equipment standards across the entire RPM range. This complete bolt-on kit comes fully loaded with everything required for a flawless top-end rebuild—including a precision-machined 54mm standard bore cylinder, a high-performance forged piston assembly coated with molybdenum, premium rings, wrist pin, circlips, and a specific high-tightness gasket set—allowing you to drop compression losses and refresh your engine without requiring any machining or structural engine modifications to your factory crankcase.

    2 in stock 2 - 4 Business Days

    $658.87

  • Athena P400485100003 Standard Bore Cylinder Kit (54mm, 125cc) - Premium 2-Stroke Top End Rebuild Kit with Forged Piston & Gaskets, Compatible with Yamaha YZ125 1997-2004 Athena P400485100003 Standard Bore Cylinder Kit (54mm, 125cc) - Premium 2-Stroke Top End Rebuild Kit with Forged Piston & Gaskets, Compatible with Yamaha YZ125 1997-2004

    Athena Athena P400485100003 Standard Bore Cylinder Kit (54mm, 125cc) - Premium 2-Stroke Top End Rebuild Kit with Forged Piston & Gaskets, Compatible with Yamaha YZ125 1997-2004

    2 - 4 Business Days

    RESTORE YOUR DIRT BIKE TO PEAK OEM PERFORMANCE Bring back the crisp throttle response, razor-sharp power delivery, and high-revving factory reliability of your 125cc two-stroke engine with the Athena Standard Bore Cylinder Kit (Part No. P400485100003), a premium OEM-style replacement package engineered and manufactured in Italy. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to match or exceed original equipment standards across the entire RPM range. This complete bolt-on kit comes fully loaded with everything required for a flawless top-end rebuild—including a precision-machined 54mm standard bore cylinder, a high-performance forged piston assembly coated with molybdenum, premium rings, wrist pin, circlips, and a specific high-tightness gasket set—allowing you to drop compression losses and refresh your engine without requiring any machining or structural engine modifications to your factory crankcase.

    2 - 4 Business Days

    $751.49

  • Polisport 91632 Restyling Kit for Kawasaki KX125 & KX250 2003-2008 2024 Style Black – Complete Bodywork Set with Fenders, Radiator Scoops, Side Panels, Fork Guards and Front Number Plate Polisport 91632 Restyling Kit for Kawasaki KX125 & KX250 2003-2008 2024 Style Black – Complete Bodywork Set with Fenders, Radiator Scoops, Side Panels, Fork Guards and Front Number Plate

    Polisport Polisport 91632 Restyling Kit for Kawasaki KX125 & KX250 2003-2008 2024 Style Black – Complete Bodywork Set with Fenders, Radiator Scoops, Side Panels, Fork Guards and Front Number Plate

    2 - 4 Business Days

    Transform the appearance of your Kawasaki KX125 or KX250 with the Polisport 91632 Restyling Kit in Black. Designed for 2003-2008 models, this complete bodywork conversion kit gives your motorcycle the aggressive styling of newer-generation KX machines while maintaining dependable fitment and durability. Manufactured from high-impact polypropylene plastic, the components are built to withstand motocross and off-road riding conditions. Ideal for restorations, rebuilds, or custom projects, this Polisport restyling kit provides a dramatic modern upgrade with trusted quality and performance.

    2 - 4 Business Days

    $212.96

  • Polisport 91631 Restyling Kit – Fits Kawasaki KX 2003–2008 – 2024‑Style Bodywork with Green Fenders, Number Plate, Side Panels, Fork Protectors & Radiator Scoops Polisport 91631 Restyling Kit – Fits Kawasaki KX 2003–2008 – 2024‑Style Bodywork with Green Fenders, Number Plate, Side Panels, Fork Protectors & Radiator Scoops

    Polisport Polisport 91631 Restyling Kit – Fits Kawasaki KX 2003–2008 – 2024‑Style Bodywork with Green Fenders, Number Plate, Side Panels, Fork Protectors & Radiator Scoops

    2 - 4 Business Days

    The Polisport 91631 Restyling Kit transforms your Kawasaki KX (2003–2008) with the modern, aggressive look of the 2024 KX models. This complete restyle package includes redesigned fenders, shrouds, panels, and guards that bolt directly onto your 03–08 chassis with no modifications. Manufactured using Polisport’s exclusive DGP (Durable Gloss Polypropylene), the kit delivers superior impact resistance, UV protection, and a premium gloss finish. Featuring Green fenders, number plate, side panel, and fork protectors, this kit gives your older KX a fresh, factory‑race appearance.

    2 - 4 Business Days

    $212.96

  • Last stock! Athena P400270100002 80cc Big Bore Cylinder Kit with Cylinder Head (50mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with KTM 65 SX 2001-2008 Athena P400270100002 80cc Big Bore Cylinder Kit with Cylinder Head (50mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with KTM 65 SX 2001-2008

    Athena Athena P400270100002 80cc Big Bore Cylinder Kit with Cylinder Head (50mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with KTM 65 SX 2001-2008

    2 in stock 2 - 4 Business Days

    UPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 65cc youth two-stroke racing engine with the Athena Big Bore Cylinder Kit (Part No. P400270100002), a premium race-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 80cc powerhouse. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to deliver a substantial increase along the entire power curve while maintaining strict original-equipment reliability. This complete bolt-on kit comes loaded with everything required for a flawless installation—including a precision-machined 50mm big bore cylinder, a dedicated high-compression cylinder head, a premium cast piston assembly, rings, wrist pin, clips, and a specific high-tightness multi-layer gasket set—allowing you to dramatically increase track performance without requiring any machining or structural engine modifications to your factory crankcase.

    2 in stock 2 - 4 Business Days

    $593.54

  • Last stock! Athena P400250100030 300cc Big Bore Cylinder Kit (85mm Bore) - Forged Piston Performance Upgrade, Converts 250cc to 300cc, Compatible with Kawasaki KX250 & KX250X 2023-2024 Athena P400250100030 300cc Big Bore Cylinder Kit (85mm Bore) - Forged Piston Performance Upgrade, Converts 250cc to 300cc, Compatible with Kawasaki KX250 & KX250X 2023-2024

    Athena Athena P400250100030 300cc Big Bore Cylinder Kit (85mm Bore) - Forged Piston Performance Upgrade, Converts 250cc to 300cc, Compatible with Kawasaki KX250 & KX250X 2023-2024

    4 in stock 2 - 4 Business Days

    UPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 250cc four-stroke engine with the Athena Big Bore Cylinder Kit (Part No. P400250100030), a premium race-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 300cc powerhouse. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to deliver a substantial increase along the entire power curve while maintaining strict original-equipment reliability. This complete bolt-on kit comes loaded with everything required for a flawless installation—including a widened water-jacket aluminum cylinder, a high-performance forged piston coated with molybdenum, premium rings, wrist pin, clips, and a specific high-tightness multi-layer gasket set—allowing you to dramatically increase track performance without requiring any machining or structural engine modifications to your factory crankcase.

    4 in stock 2 - 4 Business Days

    $1,102.95

  • Last stock! Athena P400250100011 144cc Big Bore Cylinder Kit with Cylinder Head (58mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with Kawasaki KX125 2003-2007 Athena P400250100011 144cc Big Bore Cylinder Kit with Cylinder Head (58mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with Kawasaki KX125 2003-2007

    Athena Athena P400250100011 144cc Big Bore Cylinder Kit with Cylinder Head (58mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with Kawasaki KX125 2003-2007

    4 in stock 2 - 4 Business Days

    UPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 125cc two-stroke racing engine with the Athena Big Bore Cylinder Kit (Part No. P400250100011), a premium race-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 144cc powerhouse. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to deliver a substantial increase along the entire power curve while maintaining strict original-equipment reliability. This complete bolt-on kit comes loaded with everything required for a flawless installation—including a precision-machined 58mm big bore cylinder, a dedicated high-compression cylinder head, updated power valve hardware, a premium cast piston assembly, rings, wrist pin, clips, and a specific high-tightness multi-layer gasket set—allowing you to dramatically increase track performance without requiring any machining or structural engine modifications to your factory crankcase.

    4 in stock 2 - 4 Business Days

    $811.79

  • Last stock! Athena P400250100009 Standard Bore Cylinder Kit (96mm, 450cc) - Premium 4-Stroke Top End Rebuild Kit with Forged Piston & Gaskets, Compatible with Kawasaki KFX450R ATV 2008-2014 Athena P400250100009 Standard Bore Cylinder Kit (96mm, 450cc) - Premium 4-Stroke Top End Rebuild Kit with Forged Piston & Gaskets, Compatible with Kawasaki KFX450R ATV 2008-2014

    Athena Athena P400250100009 Standard Bore Cylinder Kit (96mm, 450cc) - Premium 4-Stroke Top End Rebuild Kit with Forged Piston & Gaskets, Compatible with Kawasaki KFX450R ATV 2008-2014

    3 in stock 2 - 4 Business Days

    RESTORE YOUR SPORT ATV TO PEAK OEM PERFORMANCE Bring back the crisp throttle response, razor-sharp power delivery, and factory reliability of your 450cc four-stroke sport ATV engine with the Athena Standard Bore Cylinder Kit (Part No. P400250100009), a premium OEM-style replacement package engineered and manufactured in Italy. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to match or exceed original equipment standards across the entire RPM range. This complete bolt-on kit comes fully loaded with everything required for a flawless top-end rebuild—including a precision-machined 96mm standard bore cylinder, a high-performance forged piston assembly coated with molybdenum, premium rings, wrist pin, circlips, and a specific high-tightness gasket set—allowing you to drop compression losses and refresh your engine without requiring any machining or structural engine modifications to your factory crankcase.

    3 in stock 2 - 4 Business Days

    $526.77

  • Last stock! Athena P400250100007 80cc Big Bore Cylinder Kit with Cylinder Head (50mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with Kawasaki KX65 & Suzuki RM65 2000-2024 Athena P400250100007 80cc Big Bore Cylinder Kit with Cylinder Head (50mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with Kawasaki KX65 & Suzuki RM65 2000-2024

    Athena Athena P400250100007 80cc Big Bore Cylinder Kit with Cylinder Head (50mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with Kawasaki KX65 & Suzuki RM65 2000-2024

    3 in stock 2 - 4 Business Days

    UPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 65cc youth two-stroke racing engine with the Athena Big Bore Cylinder Kit (Part No. P400250100007), a premium race-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 80cc powerhouse. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to deliver a substantial increase along the entire power curve while maintaining strict original-equipment reliability. This complete bolt-on kit comes loaded with everything required for a flawless installation—including a precision-machined 50mm big bore cylinder, a dedicated high-compression cylinder head, a premium cast piston assembly, rings, wrist pin, clips, and a specific high-tightness multi-layer gasket set—allowing you to dramatically increase track performance without requiring any machining or structural engine modifications to your factory crankcase.

    3 in stock 2 - 4 Business Days

    $633.74

  • Last stock! Athena P400250100006 Standard Bore Cylinder Kit with Cylinder Head (44.5mm, 65cc) - Premium 2-Stroke Top End Rebuild Kit, Compatible with Kawasaki KX65 & Suzuki RM65 2000-2024 Athena P400250100006 Standard Bore Cylinder Kit with Cylinder Head (44.5mm, 65cc) - Premium 2-Stroke Top End Rebuild Kit, Compatible with Kawasaki KX65 & Suzuki RM65 2000-2024

    Athena Athena P400250100006 Standard Bore Cylinder Kit with Cylinder Head (44.5mm, 65cc) - Premium 2-Stroke Top End Rebuild Kit, Compatible with Kawasaki KX65 & Suzuki RM65 2000-2024

    3 in stock 2 - 4 Business Days

    RESTORE YOUR DIRT BIKE TO PEAK OEM PERFORMANCE Bring back the crisp throttle response, razor-sharp power delivery, and high-revving factory reliability of your 65cc youth two-stroke racing engine with the Athena Standard Bore Cylinder Kit (Part No. P400250100006), a premium OEM-style replacement package engineered and manufactured in Italy. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to match or exceed original equipment standards across the entire powerband. This complete bolt-on kit comes fully loaded with everything required for a flawless top-end overhaul—including a precision-machined 44.5mm standard bore cylinder, a dedicated high-compression cylinder head, a premium cast piston assembly, rings, wrist pin, circlips, and a specific high-tightness gasket set—allowing you to drop compression losses and completely refresh your machine without requiring any custom machining or structural engine modifications to your factory crankcase.

    3 in stock 2 - 4 Business Days

    $538.97

  • Last stock! Athena P400250100005 130cc Big Bore Cylinder Kit (57mm Bore) - High-Performance Pit Bike Upgrade Kit, Converts 110cc to 130cc, Compatible with Kawasaki KLX110 & Suzuki DR-Z110 Athena P400250100005 130cc Big Bore Cylinder Kit (57mm Bore) - High-Performance Pit Bike Upgrade Kit, Converts 110cc to 130cc, Compatible with Kawasaki KLX110 & Suzuki DR-Z110

    Athena Athena P400250100005 130cc Big Bore Cylinder Kit (57mm Bore) - High-Performance Pit Bike Upgrade Kit, Converts 110cc to 130cc, Compatible with Kawasaki KLX110 & Suzuki DR-Z110

    3 in stock 2 - 4 Business Days

    UPGRADE YOUR PIT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 110cc pit bike engine with the Athena Big Bore Cylinder Kit (Part No. P400250100005), a premium race-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 130cc powerhouse. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to deliver a substantial increase along the entire power curve while maintaining strict original-equipment reliability. This complete bolt-on kit comes loaded with everything required for a flawless installation—including a precision-machined aluminum big bore cylinder, a high-performance forged piston coated with molybdenum, premium rings, wrist pin, clips, and a specific high-tightness multi-layer gasket set—allowing you to dramatically increase track and trail performance without requiring any machining or structural engine modifications to your factory crankcase.

    3 in stock 2 - 4 Business Days

    $284.82

  • Last stock! Athena S410195149037 Primary Cover Gasket for Sportster 883/1200 Evo (2004‑2009) – Meta‑Foam Primary Cover Gasket, Sold Individually Athena S410195149037 Primary Cover Gasket for Sportster 883/1200 Evo (2004‑2009) – Meta‑Foam Primary Cover Gasket, Sold Individually

    Athena Athena S410195149037 Primary Cover Gasket for Sportster 883/1200 Evo (2004‑2009) – Meta‑Foam Primary Cover Gasket, Sold Individually

    2 in stock 2 - 4 Business Days

    The Athena S410195149037 Gasket is a high‑quality replacement gasket designed for Harley‑Davidson Sportster 883 and 1200cc Evolution models from 2004–2009. Constructed using Meta‑Foam, a premium multi‑layer material engineered for superior sealing, this gasket provides excellent resistance to heat, oil, and deformation. It ensures a reliable seal between the primary cover and engine case, helping prevent leaks and maintaining smooth primary drive operation. This item is sold individually, ideal for routine service or single‑bike maintenance.

    2 in stock 2 - 4 Business Days

    $39.97

  • Last stock! Athena S410195149021 Primary Cover Gasket for Harley 1340cc Shovelhead (1981‑1988) – .030" Primary Cover Gasket, Bulk 10‑Pack Athena S410195149021 Primary Cover Gasket for Harley 1340cc Shovelhead (1981‑1988) – .030" Primary Cover Gasket, Bulk 10‑Pack

    Athena Athena S410195149021 Primary Cover Gasket for Harley 1340cc Shovelhead (1981‑1988) – .030" Primary Cover Gasket, Bulk 10‑Pack

    2 in stock 2 - 4 Business Days

    The Athena S410195149021 Primary Cover Gasket is a premium replacement gasket designed for Harley‑Davidson 1340cc Shovelhead models from 1981–1988. Built from high‑quality materials and precision‑cut to OEM‑level specifications, this .030" gasket provides a reliable seal between the primary cover and engine case to help prevent leaks and maintain smooth primary drive operation. This listing includes a 10‑pack, making it ideal for service shops, restoration specialists, or riders who regularly maintain classic Shovelhead models.

    2 in stock 2 - 4 Business Days

    $42.28

  • Last stock! Athena S410195149001 Primary Cover Gasket for Harley‑Davidson Sportster (1977‑1990) – Primary Cover Gasket Set, Bulk 10‑Pack Athena S410195149001 Primary Cover Gasket for Harley‑Davidson Sportster (1977‑1990) – Primary Cover Gasket Set, Bulk 10‑Pack

    Athena Athena S410195149001 Primary Cover Gasket for Harley‑Davidson Sportster (1977‑1990) – Primary Cover Gasket Set, Bulk 10‑Pack

    2 in stock 2 - 4 Business Days

    The Athena S410195149001 Primary Cover Gasket is a high‑quality replacement gasket designed for Harley‑Davidson Sportster models from 1977–1990. Manufactured with premium materials for long‑lasting durability, this gasket ensures a proper seal between the primary cover and engine case to prevent leaks and maintain smooth primary system operation. This listing includes a 10‑pack, ideal for shops, service departments, or riders who perform frequent maintenance on vintage Sportster models.

    2 in stock 2 - 4 Business Days

    $52.09

  • Last stock! Athena P400210100067 290cc Big Bore Cylinder Kit (85mm Bore) - Co-Fused Steel Liner Forged Piston Upgrade, Converts 250cc to 289cc, Compatible with Honda CRF250R & CRF250RX 2018-2021 Athena P400210100067 290cc Big Bore Cylinder Kit (85mm Bore) - Co-Fused Steel Liner Forged Piston Upgrade, Converts 250cc to 289cc, Compatible with Honda CRF250R & CRF250RX 2018-2021

    Athena P400210100067 290cc Big Bore Cylinder Kit (85mm Bore) - Co-Fused Steel Liner Forged Piston Upgrade, Converts 250cc to 289cc, Compatible with Honda CRF250R & CRF250RX 2018-2021

    5 in stock 2 - 4 Business Days

    UPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 250cc four-stroke engine with the Athena Big Bore Cylinder Kit (Part No. P400210100067), a premium race-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 290cc (289cc actual) powerhouse. Utilizing an innovative co-fusion production process that integrates a heavy-duty steel sleeve directly into an aluminum outer casting, this unique cylinder maximizes internal bore geometry without requiring structural modifications or machining to your factory crankcase. Lined with a high-durability galvanic nickel-silicon treatment, this setup ensures maximum heat dissipation, reduced mechanical friction, and optimal wear resistance. The complete bolt-on kit comes fully loaded with everything needed for installation—including the advanced hybrid cylinder, a lightweight box-bridged forged piston coated in friction-reducing molybdenum disulfide, a biconical DLC-coated wrist pin, premium rings, wire locks, and a multi-layer high-tightness gasket set—delivering full-bodied torque across all steady states while preserving your bike's agile handling.

    5 in stock 2 - 4 Business Days

    $788.82


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