Shimano Rear Disc Brake Adaptor
Best choice for cyclists upgrading to 140mm rear disc rotors.
This essential mount bridges the gap between your frame and 140mm rotors, ensuring your calipers sit perfectly flush. It is a simple, no-nonsense fix that prioritizes precise alignment over flashy tech, giving you the consistent, reliable stopping power required for technical descents.
$21.45
at
Mike's Bikes
Who it's for
- Cyclists mixing and matching different brake and frame standards
- Riders seeking perfect alignment and silent braking performance
- Mechanics prioritizing long-term structural reliability and safety
Who should skip it
- Minimalists wanting to reduce hardware and potential maintenance points
- Weight-conscious racers chasing every gram of bike savings
- Cyclists planning future upgrades to larger rotor sizes
Performance breakdown
Alignment Precision
Engineered tolerances ensure the caliper sits perfectly over the rotor.
Build Integrity
Robust construction withstands high-torque braking forces without flexing.
Installation Simplicity
Straightforward mounting process makes upgrading your brake system hassle-free.
Component Compatibility
Seamless integration with Shimano ecosystems guarantees reliable, consistent performance.
Weight Efficiency
Minimalist design keeps your rear end light without sacrificing structural strength.
Stopping Reliability
Provides the stable foundation necessary for confident, predictable braking power.
Key Specs
Model Number
ISMMAR140PDH
Rotor Size Compatibility
140mm
Component Type
Rear Disc Brake Adaptor
Know before you buy
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