UPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 230cc four-stroke engine with the Athena Big Bore Cylinder Kit (Part No. P400210100054), a premium trail-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 240cc 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 an advanced 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 trail performance without requiring any machining or structural engine modifications to your factory crankcase.
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. P400210100009), a premium race-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 280cc 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.
UPGRADE YOUR SCOOTER TO THE NEXT LEVEL OF PERFORMANCE Extract maximum power and unmatched acceleration from your 50cc scooter with the Athena Big Bore Cylinder Kit (Part No. 070100), a premium performance package engineered in Italy to seamlessly convert your factory engine into a high-revving, high-output 70cc 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 reliability. This complete bolt-on kit comes loaded with everything required for a flawless installation—including a precision-machined aluminum cylinder, a matching high-compression cylinder head, a premium domed-head piston with a 10mm wrist pin, rings, and a specific high-tightness gasket set—allowing you to dramatically increase top-end speed and low-end torque without requiring any structural engine modifications to your original factory crankcase.
The Athena R2706‑081 Race Gasket Kit is engineered for maximum sealing performance in KTM 450 SX‑F models from 2016–2024. Designed for racing and high‑output applications, this kit includes a premium cylinder head gasket and two cylinder base gaskets to accommodate different deck‑height and compression setups. Manufactured with advanced materials and built to precise specifications, Athena race gaskets deliver superior durability, improved sealing, and consistent performance under extreme motocross and off‑road conditions.
The Athena P400510850034 Full Gasket Kit provides a complete, high‑quality sealing solution for Suzuki RM85 two‑stroke engines from 2002–2022. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for youth motocross racers, off‑road riders, and anyone maintaining or refreshing the RM85’s proven mini‑class platform.
The Athena P400510850999 Full Gasket Kit provides a complete, high‑quality sealing solution for Suzuki GSX‑R1300 engines from 1999–2003. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets required for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for riders maintaining or rebuilding these powerful, high‑performance inline‑four motorcycles.
The Athena P400510850800 Full Gasket Kit provides a complete, high‑quality sealing solution for Suzuki GS850 engines from 1979–1981. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for riders maintaining or restoring these classic air‑cooled inline‑four touring motorcycles.
The Athena P400510850753 Full Gasket Kit provides a complete, high‑quality sealing solution for Suzuki GSX‑R750 (2000–2003) and GSX‑R1000 (2001–2002) engines. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for riders maintaining or rebuilding these iconic high‑performance sport bikes.
The Athena P400510850700 Full Gasket Kit provides a complete, high‑quality sealing solution for Suzuki GS750 engines from 1977–1980. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for riders restoring or maintaining these classic air‑cooled four‑cylinder motorcycles.
The Athena P400510850140 Full Gasket Kit provides a complete, high‑quality sealing solution for Suzuki RM125 two‑stroke engines from 1998–2000. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for motocross racers, off‑road riders, and anyone maintaining or restoring these responsive, high‑revving RM125 models.
The Athena P400510850030 Full Gasket Kit provides a complete, high‑quality sealing solution for Suzuki RM125 two‑stroke engines from 2001–2007. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for motocross racers, off‑road riders, and anyone maintaining or restoring these lightweight, high‑revving RM125 models.
The Athena P400510600257 Top End Gasket Kit provides a high‑quality sealing solution for Suzuki LT250 and Ozark 250 ATVs from 1987–2014. Designed to OEM‑level specifications, this kit includes all essential top‑end gaskets needed for cylinder, head, and valve‑related service. Built from premium materials for long‑lasting durability, Athena gaskets help restore proper compression, prevent leaks, and maintain reliable performance for trail riding, utility work, and everyday ATV use.
The Athena P400485900213 Complete Gasket Kit provides a full, high‑quality sealing solution for Yamaha YZ450F engines from 2020–2022. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major top‑end and bottom‑end gaskets required for a complete engine rebuild. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for motocross racers, off‑road riders, and anyone maintaining Yamaha’s championship‑proven 450cc platform.
The Athena P400485900212 Complete Gasket Kit provides a full, high‑quality sealing solution for Yamaha YZ250F and WR250F 4‑stroke engines. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major gaskets required for both top‑end and bottom‑end service. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for motocross racers, trail riders, and anyone maintaining or rebuilding Yamaha’s proven 250cc 4‑stroke platforms.
The Athena P400485850986 Full Gasket Kit provides a complete, high‑quality sealing solution for Yamaha VMAX 1200 engines from 1985–1998. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for riders maintaining or restoring the legendary V‑Four muscle bike known for its unmatched power and character.
The Athena P400485850900 Full Gasket Kit provides a complete, high‑quality sealing solution for Yamaha XV920 engines from 1981–1983. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for riders restoring or maintaining these classic Yamaha V‑twin motorcycles.
The Athena P400485850620 Full Gasket Kit provides a complete, high‑quality sealing solution for Yamaha XS650 engines from 1975–1981. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for riders restoring or maintaining these iconic parallel‑twin Yamaha motorcycles.
The Athena P400485850400 Full Gasket Kit provides a complete, high‑quality sealing solution for Yamaha XS400 engines from 1979–1982. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for riders restoring or maintaining these classic Yamaha twin‑cylinder street bikes.
The Athena P400485850270 Full Gasket Kit provides a complete, high‑quality sealing solution for Yamaha YZ250 two‑stroke engines from 1997–1998. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for motocross racers, off‑road riders, and anyone maintaining or restoring these classic YZ250 models.
The Athena P400485850263 Full Gasket Kit provides a complete, high‑quality sealing solution for Yamaha YTZ250 Tri‑Z engines from 1985–1986. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for riders restoring or maintaining these iconic high‑performance three‑wheelers.
The Athena P400485850225 Full Gasket Kit provides a complete, high‑quality sealing solution for Yamaha 225 and 250 engines used in Bear Tracker, Timberwolf, and YFM models from 1986–2002. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for utility riders, trail enthusiasts, and anyone maintaining or restoring these proven Yamaha ATV platforms.
The Athena P400485850203 Full Gasket Kit provides a complete, high‑quality sealing solution for Yamaha YFM and YTM 200/225 engines from 1983–1986. Designed for both ATV and Tri‑Moto models, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Manufactured with premium materials and engineered to OEM‑level specifications, Athena gaskets restore proper sealing, prevent leaks, and deliver long‑lasting durability. Ideal for riders restoring vintage Yamaha machines or maintaining dependable performance on the trail or farm.
The Athena P400485850125 Full Gasket Kit provides a complete, high‑quality sealing solution for Yamaha YZ125 two‑stroke engines from 1986–1993. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for riders restoring or maintaining classic YZ125 models known for their lightweight power and responsive handling.
The Athena P400485850116 Full Gasket Kit provides a complete, high‑quality sealing solution for Yamaha YZ125 two‑stroke engines from 1999–2004. Manufactured with premium materials and engineered to OEM‑level specifications, this kit includes all major engine gaskets needed for a full rebuild—excluding oil seals. Designed to restore proper sealing, prevent leaks, and ensure long‑lasting durability, Athena gaskets deliver dependable performance for motocross racers, off‑road riders, and anyone maintaining or restoring these iconic YZ125 models.
