{"product_id":"hope-rx4-sl-fm20-etrier-de-frein-gravel","title":"HOPE RX4+ SL FM+20 gravel brake caliper","description":"\u003cp\u003e\u003cstrong\u003eThe Hope RX4+ SL FM+20 is a caliper only: no lever, no hose, no mounting bolts.\u003c\/strong\u003e It connects to the hose of your road or gravel levers with the supplied Hope fittings, and those levers dictate the version: DOT for SRAM, mineral for Shimano and Campagnolo.\u003c\/p\u003e\u003cp\u003eThe point is the +20. On a rear flat mount frame designed for 140 and 160 mm, it takes a 160 mm rotor directly, with no adapter, and a 180 mm rotor on a 160\/180 frame.\u003c\/p\u003e\u003cp\u003eThose 10 mm of radius act as a lever arm: for the same effort, braking torque rises by more than 14% compared with a 140 mm rotor. Plan on M5 bolts of the right length, since 7 to 8 mm must go into the caliper and the mount varies from one frame to another. For the front, see the \u003ca href=\"\/en\/products\/hope-rx4-sl-fmf20-etrier-de-frein-avant-gravel\"\u003eRX4+ SL FMF+20\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eFor 2026, Hope has refined its bore cap to fit more frames. MAAKE offers it to fit four pistons behind the levers you already have.\u003c\/p\u003e","brand":"Hope","offers":[{"title":"Black \/ DOT","offer_id":60024306794821,"sku":"CPT-HOPE-RX4SLFM20-DOT-NOI","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"Black \/ Mineral","offer_id":60024306827589,"sku":"CPT-HOPE-RX4SLFM20-MIN-NOI","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"Silver \/ DOT","offer_id":60024306860357,"sku":"CPT-HOPE-RX4SLFM20-DOT-ARG","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"Silver \/ Mineral","offer_id":60024306893125,"sku":"CPT-HOPE-RX4SLFM20-MIN-ARG","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"Blue \/ DOT","offer_id":60024306925893,"sku":"CPT-HOPE-RX4SLFM20-DOT-BLE","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"Blue \/ Mineral","offer_id":60024306958661,"sku":"CPT-HOPE-RX4SLFM20-MIN-BLE","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"Red \/ DOT","offer_id":60024306991429,"sku":"CPT-HOPE-RX4SLFM20-DOT-ROU","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"Red \/ Mineral","offer_id":60024307024197,"sku":"CPT-HOPE-RX4SLFM20-MIN-ROU","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"Violet \/ DOT","offer_id":60024307056965,"sku":"CPT-HOPE-RX4SLFM20-DOT-VIO","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"Violet \/ Mineral","offer_id":60024307089733,"sku":"CPT-HOPE-RX4SLFM20-MIN-VIO","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"Orange \/ DOT","offer_id":60024307122501,"sku":"CPT-HOPE-RX4SLFM20-DOT-ORA","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"Orange \/ Mineral","offer_id":60024307155269,"sku":"CPT-HOPE-RX4SLFM20-MIN-ORA","price":145.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/4181\/8949\/files\/hope-rx4-sl-fm20-noir-studio-dot.webp?v=1793552865","url":"https:\/\/maake.cc\/en\/products\/hope-rx4-sl-fm20-gravel-brake-caliper","provider":"MAAKE","version":"1.0","type":"link"}