{"product_id":"hope-rx4-flat-mount-20-dot-disc-brake-caliper-black","title":"Hope RX4+ Flat Mount +20 DOT Disc Brake Caliper Black","description":"\u003ch2\u003eHope RX4+ Flat Mount +20 DOT Disc Brake Caliper\u003c\/h2\u003e\u003cp\u003eThe Hope RX4+ Flat Mount Front +20mm DOT Disc Brake Caliper is engineered for road and gravel cyclists demanding precision braking performance. Featuring an integrated flat mount design compatible with flat mount front forks only, this caliper supports 180mm or 160mm rotors depending on fork mount type. Its monobloc construction creates a stiffer, more responsive caliper body that eliminates the fuzzy lever feel and minimizes brake pad rub — making it an ideal upgrade for SRAM-equipped drivetrains including Red eTap AXS, Force eTap AXS, Rival, and Apex.\u003c\/p\u003e\u003cp\u003eBuilt around a slimline 4-piston design, the RX4+ delivers powerful, consistent stopping power while keeping weight to a minimum. It uses DOT brake fluid exclusively and is compatible with SRAM S900 hydraulic systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFront Flat Mount direct mount caliper with +20mm offset\u003c\/li\u003e\n\u003cli\u003e4-piston slimline lightweight design\u003c\/li\u003e\n\u003cli\u003eMonobloc construction for increased stiffness and reduced brake pad rub\u003c\/li\u003e\n\u003cli\u003eCompatible with 180mm or 160mm rotors\u003c\/li\u003e\n\u003cli\u003eDOT brake fluid only\u003c\/li\u003e\n\u003cli\u003eDesigned for drop bar hydraulic brake systems\u003c\/li\u003e\n\u003cli\u003eCompatible with SRAM Red eTap AXS, Red, Force eTap AXS, Force, Rival, Apex, and S900\u003c\/li\u003e\n\u003cli\u003eAvailable in 7 color options\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hope","offers":[{"title":"Default Title","offer_id":46078024777797,"sku":"5056454902174","price":126.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0714\/0032\/5189\/files\/RX4-Caliper-Complete-FMF-BLACK.jpg?v=1792571217","url":"https:\/\/noboundariessport.com\/products\/hope-rx4-flat-mount-20-dot-disc-brake-caliper-black","provider":"No Boundaries Sport","version":"1.0","type":"link"}