{"product_id":"pirelli-enduro-rally-mousse-set-90-90-21-front-e-21c1-140-80-18-rear-r-18h1-foam-inserts-flat-proof-off-road-tire-inserts-medium-compound-nhs","title":"Pirelli Enduro\/Rally Mousse Set – 90\/90-21 Front (E-21C1) \u0026 140\/80-18 Rear (R-18H1) Foam Inserts | Flat-Proof Off-Road Tire Inserts | Medium Compound | NHS","description":"Upgrade your Enduro or Rally setup with genuine Pirelli Mousse foam inserts sized for popular off-road combinations: 90\/90-21 front and 140\/80-18 rear. These medium-compound rubber foam mousses are engineered to replace conventional inner tubes, delivering puncture-proof reliability while maintaining a lively, consistent ride feel. Once installed, they simulate roughly 0.7 bar of pressure, providing excellent traction, agility, and sidewall support demanded in competitive Enduro and Rally environments.","brand":"Pirelli","offers":[{"title":"Default Title","offer_id":52765872619807,"sku":"9254000 9264800","price":299.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0813\/2195\/1519\/files\/image_b32e3fd8-78af-4f9c-8c90-3151e5539ce6.png?v=1786363420","url":"https:\/\/massdepot.com\/products\/pirelli-enduro-rally-mousse-set-90-90-21-front-e-21c1-140-80-18-rear-r-18h1-foam-inserts-flat-proof-off-road-tire-inserts-medium-compound-nhs","provider":"Mass Depot","version":"1.0","type":"link"}