Classified Powershift Torque Support Arm

All gear hubs require a torque support. On Powershift hubs, this is fitted onto the hub axle using a multi-tooth design. It is available for frames with Post Mount disc brake mounts and for Flatmount frames. 

The Post Mount torque support arm rests against the rear stay and requires no additional bolting. Although originally developed for MTB frames, we recommend it for all bikes, as it makes fitting and removing the rear wheel the easiest. 

Classified Powershift Torque Support Arm Dimensions and Specifications:

• Reinforced MTB version
• Can be fitted to Post Mount and Flat Mount bike frames

Which torque support is the right one?

The Post Mount torque support is mounted beneath the rear stay and requires no additional bolting. Although originally developed for MTB frames, we recommend it for all bikes, as it makes removing and fitting the rear wheel the easiest. 

To ensure optimal compatibility with all common frame types, Classified offers various versions of the torque support. Key factors are the diameter of the rear stays and the disc brake standard (Flat Mount or Post Mount).

Postmount: Brake caliper is bolted to the rear stay from above, bolt spacing 76 mm

Flat Mount: The brake caliper is bolted to the rear stay from below, with a bolt spacing of 34 mm

Please note that the flat mount mounts for 140 mm and 160 mm direct mount differ. The bolt spacing is the same, but the distance to the hub axis is greater: 36.5 mm for 140 mm direct mount and 45 mm for 160 mm direct mount. 

Herstellerinformation: Classified Cycling, Damplein 23, 2018 Antwerp, Belgium, https://www.classified-cycling.cc/