Shimano BR-RS305 Flat Mount Disc Brake Caliper

The Shimano RS305 mechanical disc brake is easy to control as well as set up and maintain. It mounts via Shimano's Flat Mount interface.

Technology

New Super SLR

SLR stands for Shimano Linear Response. The new super SLR design makes use of a friction-reducing mechanism in the caliper, lever and cable that improve response and modulation.

Also for the lever, the Serowave mechanism is adopted to provide quick contact of shoe to rim and longer stroke from the initial braking effect for better control.

SLR is the essential factor in the Shimano dual-pivot caliper that deliver more braking power than conventional side-pulls.

Road Disc Brake

Road Disc Brakes deliver consistent brake performance in any weather, with lighter lever action and greater brake power control for a wide range of riding styles.

• Consistent, stress-free braking performance is unaffected by weather conditions
• Lighter lever input and easier braking power control make riding less tiring and more fun for riders of any level
• Great for alternative riding styles on rough surfaces like Gravel and Adventure Road that require wider rims / tires
• Road-optimized form factor features a more compact and stylish integrated design
• Streamlined One Way Bleeding prevents air bubbles from forming in the system, making maintenance quicker and easier
• Superior heat dissipation of Ice Technologies reduces brake fade and ensures reliable brake performance

Hydraulic Disc Brakes can expand the riding possibilities by meeting and exceeding the expectations of a wide range of riders, from traditional road to unconventional styles like gravel and adventure road. Shimano Road Disc Brakes can make riding more enjoyable for a wider range of riders because of its consistent brake performance unaffected by weather conditions, lighter lever operation, easier brake power control, and the superior heat dissipation performance of Ice Technologies.

Ice Technologies

The fade, which can occur to disc brake rotor and pad when braking on a long downhill ride for instance, has a negative impact on the braking performance. Shimano has adopted Ice Technologies disc brake rotor and Ice Technologies pad to realize the cooling technology for consistent performance. The clad disc brake rotor blade, which has a 3 layer-sandwich structure of stainless steel, aluminum and stainless steel, provides better radiation performance. Also, the radiation fin has been adopted for the pad. Moreover, the clad disc brake rotor blade and the radiator fin provide long pad life, less noise, less fade and lightweight.

Ice Technologies piston in order to achieve optimized lightweight, high rigidity and heat dissipation. Oversized pistons transfer hydraulic power directly to the brake pad, and ceramic material is used to avoid heat transfer for constant stable braking, providing efficient stopping power transfer without loss.

Features

• Flat mount disc brake power for road or cyclo cross bikes without the fuss of hydraulic fluid systems
• Cable operated mechanical disc brake design means that you can upgrade to discs using existing compatible road brake levers or STIs
• Front wheel use for flat mount forks with adapter to flip between 140 and 160mm
• Increased pad to rotor clearance reduces the chance of rotor drag
• Shim-less mounting bracket allows for quick installation and setting up
• Adjustable pad clearance for easy set up
• Super lightweight low profile body uses a forged one piece alloy design that increases rigidity and reduces weight
• Long arm design maximises performance for light braking control with New Super SLR brake levers
• Shim-less mounting system for quick and easy setup
• Recommended for use with Ice Tech rotors for optimum braking performance
• Comes complete with resin compound aluminium radiation fin pad further improves heat dissipation reducing brake surface temperature by 50 deg C
• Can be used with Centre-Lock and 6-bolt rotors