{"product_id":"hayes-disc-caliper-part-parent-bti-hy8421","title":"Hayes Hydraulic Disc Brake Rebuild Kits | Pistons, Seals, and Components for Dominion, G2, HFX-9 \u0026 Trail Calipers","description":"\u003cdiv id=\"seqbpdescription\"\u003e\u003cp\u003eUpgrade and maintain your hydraulic disc brakes with our comprehensive selection of Hayes rebuild kits. Designed for precision, durability, and high-performance cycling, these rebuild kits include all essential components—pistons, seals, and replacement parts—ensuring your brake calipers operate smoothly and reliably. Compatible with a wide range of Hayes models such as Dominion A2, Dominion A4, G2 Mag, HFX-9, and T2 Calipers, our rebuild kits are engineered from high-quality materials to withstand tough riding conditions. Featuring advanced seal technology and corrosion-resistant pistons, these kits optimize braking performance, control, and longevity for mountain biking, trail riding, and aggressive downhill disciplines. Easy to install, these rebuild solutions are perfect for cyclists seeking to restore their brake system’s top-tier performance and ensure safety on the trail. Enhance your bike’s stopping power with Hayes hydraulic disc brake rebuild kits—your trusted choice for professional-grade brake upkeep and reliable cycling performance.\u003c\/p\u003e\u003c\/div\u003e","brand":"Hayes","offers":[{"title":"Stroker Carbon\/Trail","offer_id":42406268796995,"sku":"BR4247","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Dominion A4","offer_id":42406268829763,"sku":"BR4459","price":27.43,"currency_code":"USD","in_stock":false},{"title":"Hayes G2,G1*","offer_id":42406268862531,"sku":"BR4499","price":27.63,"currency_code":"USD","in_stock":true},{"title":"Dominion A2","offer_id":42406268895299,"sku":"BR3940","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Dominion T2","offer_id":42406268928067,"sku":"DCPT0080","price":27.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/BR4247.jpg?v=1779335794","url":"https:\/\/365cycles.com\/products\/hayes-disc-caliper-part-parent-bti-hy8421","provider":"365 Cycles","version":"1.0","type":"link"}