Shimano BR-RS305 Rear Brake Caliper — Precision Hydraulic Braking for Road Cyclists
The Shimano BR-RS305 Rear Brake Caliper embodies a perfect blend of advanced hydraulic technology, lightweight construction, and reliable performance, tailored to meet the demands of road cyclists seeking superior braking control and safety. Designed to complement the front BR-RS305 caliper, it ensures balanced and consistent stopping power for a confident ride.
Featuring Shimano’s refined hydraulic system, the BR-RS305 rear caliper delivers smooth, responsive modulation, allowing riders to precisely control braking force under a variety of conditions—whether tackling steep climbs, navigating technical descents, or riding through wet and unpredictable weather. This precision braking enhances rider confidence and overall bike handling.
Constructed from durable yet lightweight materials, the caliper is engineered to integrate seamlessly with modern road bike frames. Its compact design supports post-mount installation, offering secure, exact positioning on rear stays or forks, which is essential for maintaining optimal brake pad and rotor alignment.
The caliper comes equipped with Shimano’s resin brake pads, which provide consistent, quiet braking performance and excellent durability. These pads are easily replaceable, enabling hassle-free maintenance and long-term brake efficiency.
Installation and upkeep are straightforward due to Shimano’s precision engineering and compatibility with a broad range of hydraulic brake components. The BR-RS305 rear caliper stands out as a dependable choice for riders upgrading from mechanical braking systems or those maintaining their existing hydraulic setups.
For cyclists who demand consistent braking power, responsive control, and durable performance, the Shimano BR-RS305 Rear Brake Caliper delivers an excellent balance of innovation and reliability that enhances every ride.

