Dia-Compe Brake Axle Nut
In stock
The Dia-Compe Brake Axle Nut is a brake nut for mounting rim brakes where the brake caliper axle passes through the fork or frame and is tightened from the back. It is available in several lengths because the space through the fork crown and brake bridge varies between bicycles.
The nut supplied with the brake is not always the right length for your particular frame or fork. As a general guideline, a steel fork often works with a 13 mm nut, while carbon forks usually need at least 20 mm. A 10 mm nut is common for the rear brake. However, there is no fixed standard among frame, fork, and brake manufacturers, so always check which length your setup actually needs before ordering.
The nut has a 6 mm diameter and is available in lengths of 10, 13, 20, and 28 mm. Choose a length that reaches the brake axle properly without bottoming out before the brake is securely tightened.
Quick Specs
- Product type: Brake nut / brake axle nut
- Diameter: 6 mm
- Lengths: 10, 13, 20, and 28 mm
- Common front length, steel fork: Approximately 13 mm
- Common front length, carbon fork: At least approximately 20 mm
- Common rear length: Approximately 10 mm
- Important: Recommended lengths are guidelines only - check the frame, fork, and brake before purchase
- Manufacturer: Dia-Compe
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Specifications
Specifications
GPSR
GPSR
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