Shimano Type C Flat Mount Rear Bolt for Dura-Ace

Shimano Type C Bolt for Dura-Ace Flat Mount Rear Brake Calipers

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.

Specifications:

Type:

Brake caliper bolt

Drive Size:

4 mm hex

Material:

steel

Technical Information:

Torque max:

8 Nm

Compatibility:

• Dura-Ace BR-R9170 (2 type C bolts are required)
• Dura-Ace BR-R9270 (1 type C bolt and 1 type C2 bolt are required*)
• XTR BR-M9110-R
• also fits BR-R8170

* Type C is closer to the dropout and is secured with a snap retainer.

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)

Models:

20 mm:

Frame Diameter:

20 mm

Bolt Length:

33 mm

Manufacturer Number:

Y8PU08010

25 mm:

Frame Diameter:

25 mm

Bolt Length:

38 mm

Manufacturer Number:

Y8PU08020

30 mm:

Frame Diameter:

30 mm

Bolt Length:

43 mm

Manufacturer Number:

Y8PU08030

Contents:

• 1 x Shimano Dura-Ace Flat Mount Type C Bolt