The Shimano flat mount type C rear bolt is used to attach the Dura-Ace BR-R9170 brake caliper to the frame. It is also compatible with the successor model BR-R9270, but here an additional type C2 bolt must be used. In addition, this screw fits the XTR model BR-M9110. Depending on the brake rotor size and frame type, the brake caliper is either attached directly to the chainstay or via an adapter. The bolt is available in different lengths for frame diameters from 20 to 30 mm. Tighten them firmly with a 4 mm hex tool 6 to 8 Nm.
Features
For installing the rear brake caliper on the chainstay (when using 140 mm or 160 mm rotors on FM 160/180 frames)
For installing the SM-MA-R160-DD adapter on the chainstay (when using 180 mm or 160 mm rotors on FM 140/160 frames)
Specifications
Type: Brake caliper bolt
Drive Size: 4 mm hex
Material: Steel
Mfr Claimed Weight
TBC
