About this product
The Hope RX4+ SL Brake is a flat mount hydraulic caliper designed for road and cyclocross use. It features a slim, lightweight 4-piston design with pistons carried over from EVO calipers. The SL model includes a bleed port/nipple to simplify the bleeding process. This product includes the caliper only and does not come with a lever, but it can be paired with compatible Shimano or SRAM road shift/brake levers. The brake uses mineral oil as hydraulic fluid. Rotors and adapters are sold separately. The caliper is available in blue.
- SL design brake caliper features a bleed port/nipple for easier bleeding and maintenance.
- Utilizes pistons carried over from EVO calipers for proven performance.
- Slim line, 4-piston rotor caliper optimized for lightweight use.
- Flat Mount 34mm caliper compatible with road and cyclocross setups.
- Includes caliper only; rotors and adapters are sold separately.
Description supplied by 365 Cycles through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.






