{"product_id":"hope-rx4-flatmount-caliper-complete-for-mineral-oil-shimano-campagnolo-brakes","title":"Hope RX4+ Flatmount Caliper Complete for Mineral Oil Shimano \u0026 Campagnolo Brakes","description":"\u003cp\u003eThe \u003cstrong\u003eHope RX4+ Caliper Complete - Fmf+20 - Min Brakes\u003c\/strong\u003e offers a high-performance braking solution designed specifically for Flatmount Front and Rear mounts. Its adaptable design allows seamless compatibility with 180\/160mm front and 160\/140mm rear rotors, tailored to your bike’s mounting style. Built exclusively for use with MINERAL Oil systems, this caliper provides reliable and consistent stopping power.\u003c\/p\u003e\n\n\u003cp\u003eExpertly engineered to integrate perfectly with Shimano and Campagnolo dropbar hydraulic brake systems, the RX4+ ensures smooth, precise modulation and enhanced control. Its slimline 4-piston monobloc construction reduces lever fuzziness and brake pad rub, delivering a crisp and confident feel. Available in six colors, it combines functional performance with sleek aesthetics.\u003c\/p\u003e\n\n\u003cp\u003eWhether you ride with Shimano’s Dura Ace, Ultegra, 105, or GRX series, or Campagnolo’s Super Record and Record groupsets, this caliper fits effortlessly, elevating your braking experience on every ride.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProviding powerful and consistent braking on Flatmount front and rear mounts\u003c\/li\u003e\n  \u003cli\u003eSmooth compatibility with Shimano and Campagnolo mineral oil hydraulic systems\u003c\/li\u003e\n  \u003cli\u003eReducing lever feel fuzziness thanks to its stiff monobloc design\u003c\/li\u003e\n  \u003cli\u003eEnhancing control with a slimline 4-piston lightweight caliper\u003c\/li\u003e\n  \u003cli\u003eOffering rotor size flexibility with direct fit for 180\/160mm rotors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUse with non-mineral oil brake fluids\u003c\/li\u003e\n  \u003cli\u003eCompatibility with non-dropbar hydraulic brake systems\u003c\/li\u003e\n  \u003cli\u003eApplications requiring mounts other than Flatmount front or rear\u003c\/li\u003e\n  \u003cli\u003eRiders seeking mechanical brake systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this caliper compatible with all Shimano dropbar brakes?\u003c\/strong\u003e\u003cbr\u003eIt is compatible with Shimano dropbar hydraulic brake systems that use mineral oil, including Dura Ace, Ultegra, 105, and GRX series.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this caliper with DOT brake fluid?\u003c\/strong\u003e\u003cbr\u003eNo, the RX4+ caliper is designed exclusively for use with mineral oil brake fluid to ensure optimal performance and longevity.\u003c\/p\u003e","brand":"Hope","offers":[{"title":"Orange","offer_id":45477615599791,"sku":"HBSPC75C","price":100.05,"currency_code":"GBP","in_stock":true},{"title":"Black","offer_id":45477615632559,"sku":"HBSPC75N","price":100.05,"currency_code":"GBP","in_stock":true},{"title":"Purple","offer_id":45477615665327,"sku":"HBSPC75PU","price":100.05,"currency_code":"GBP","in_stock":true},{"title":"Red","offer_id":45477615698095,"sku":"HBSPC75R","price":100.05,"currency_code":"GBP","in_stock":true},{"title":"Silver","offer_id":45477615730863,"sku":"HBSPC75S","price":100.05,"currency_code":"GBP","in_stock":true},{"title":"Blue","offer_id":45477615763631,"sku":"HBSPC76B","price":100.05,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1640253990-51507700.jpg?v=1768516736","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/hope-rx4-flatmount-caliper-complete-for-mineral-oil-shimano-campagnolo-brakes","provider":"Swinnerton Cycles","version":"1.0","type":"link"}