- Name: Road brake 55~72MM- Material: Alloy- Use for: Raod Bike / Fixed gear/- Brake Body Color: Black- Brake Shoe color: Black- Size: Front brake screw :30mm /18mm nut Rear brake screw :13mm /10mm nut Housing cable diameter: 5.0 mm Appropriate cable core diameter brake: <2.6 mm Dimension:55~72mmFrame installation requirements aperture:The front mounting holes> 6.0mm ,after nut hole> 8.0mm- Package included: Bike brake x 1 Pcs- Features:- Has a good anti-corrosivenness.- High Strength.- More flexible. Note::It can be disposed at the center of the braking distance of the edge of said mounting hole between the brake housing 55~72mm the rim.If the distance is too short or too long, it can not be installed.