Shimano
Front Flat-Mount Disc Brake Adapter (140/160mm)
Best solution for cyclists upgrading to larger front disc rotors.
Enhance your bicycle's braking performance with the Shimano Front Flat-Mount Disc Brake Adapter. Engineered for modern flat-mount systems, this adapter seamlessly integrates with your front wheel, allowing for the use of either 140mm or 160mm rotors. Experience superior stopping power and precise control, a testament to Shimano's renowned quality and commitment to reliable performance. This essential component ensures optimal fitment and broad compatibility, making it a vital upgrade for riders seeking improved safety and efficiency on every ride.
$24.99
Owner Satisfaction
4.6
/ 5
Category Rank
359
/ 2100
#359 in Components
Price vs Category Average
-76%
Below average
Compatibility
Front Flat-Mount Disc Brake Systems
/ Front Flat-Mount Disc Brake Systems
Who it's for
- Cyclists adjusting braking power for varied terrain and riding conditions
- Mechanics seeking perfect caliper alignment and efficient braking performance
- Road and gravel riders prioritizing a sleek, integrated bike aesthetic
Who should skip it
- Home mechanics lacking experience with precise component orientation and installation
- Users without a torque wrench prone to over-tightening delicate hardware
- Owners of post-mount forks or calipers needing cross-standard compatibility
Performance breakdown
Structural Integrity
Forged alloy construction provides rock-solid stability under heavy braking loads.
Installation Simplicity
Intuitive design makes mounting to standard flat-mount forks straightforward and quick.
Rotor Versatility
Seamlessly toggles between 140mm and 160mm setups for flexible braking configurations.
Alignment Precision
Engineered tolerances ensure perfect caliper centering to eliminate unwanted brake rub.
Component Compatibility
Industry-standard fitment guarantees reliable integration with most modern road disc systems.
Weight Efficiency
Minimalist profile keeps the front end light without sacrificing necessary stopping power.
Key Specs
Compatibility
Front Flat-Mount Disc Brake Systems
Rotor Size Support
140mm or 160mm
Brand
Shimano
Model Number
Y8N230000
Features
- Adapts front flat-mount for 140/160mm rotors
- Ensures brake system compatibility
- Genuine Shimano quality
- Essential for modern disc brakes
- Reliable performance
- Proper fitment
What customers say
Customers highly value this Shimano adapter for solving critical brake setup challenges. The core theme is reliable compatibility and robust construction. Users appreciate how this component perfectly enables the use of larger 160mm rotors on flat mount systems, expanding braking power effectively. Its straightforward integration into existing systems earns praise. The adapter delivers the dependable performance expected from Shimano, offering peace of mind regarding long-term durability. It is viewed as an essential, high-quality solution that successfully addresses specific mechanical needs without compromising safety or aesthetics. This small part proves highly effective for customization.
Know before you buy
Yes, this adapter is designed to accommodate both 140mm and 160mm rotors on front flat-mount disc brake systems.
No, this specific model is engineered exclusively for front flat-mount disc brake systems. Using it on the rear may result in improper fitment and compromised braking performance.
This adapter typically includes the essential hardware required for installation. However, we recommend checking your specific brake caliper manual to ensure you have the correct bolt lengths for your frame's fork thickness.
While this adapter is designed to Shimano's precise specifications for flat-mount standards, it is intended for use with Shimano brake systems. Compatibility with other brands may vary depending on their specific caliper geometry.
Flat-mount systems are identified by bolts that pass directly through the caliper into the fork, rather than using the older post-mount style that requires bolts to screw into the side of the caliper. If your bike is a modern road or gravel bike, it likely utilizes this standard.
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