Shimano Type C2 Bolt for Dura-Ace BR-R9270 Flat Mount Rear Brake Calipers

The Shimano flat mount type C2 rear bolt is used to attach the Dura-Ace BR-R9270 brake caliper to the frame. A type C bolt must also be used. 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-R9270 (1 type C2 bolt and 1 type C bolt are required*)
• also fits BR-R8170

* Type C2 is further away from the dropout and can not be 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:

29 mm

Manufacturer Number:

Y2HW08010

25 mm:

Frame Diameter:

25 mm

Bolt Length:

34 mm

Manufacturer Number:

Y2HW08020

30 mm:

Frame Diameter:

30 mm

Bolt Length:

39 mm

Manufacturer Number:

Y2HW08030