Grin Tech Torque Arms: Front/Rear Torque Arms For Hub Motor Security Against Axle Spinout

Description

Grin Tech Torque Arms: Rev2 Front Torque Arm (Eyelets)

Grin Tech Torque Arms are supplied as SINGLE UNITS, NOT IN PAIRS!

Grin Tech Rev2 Front Torque Arm is a universal torque arm suitable for forks with eyelets.

The Rev2 design was engineered to make use of the existing fender eyelet holes that are on most front forks. This can lead to a smaller arm and a tidier installation than using hose clamps around the fork, and we recommend its use whenever there is a suitable eyelet present. Some use a pair of front torque arms for additional security.

Grin Tech Torque Arms: Rev 3 Front Torque Arm

TORQUE ARMS ARE SUPPLIED AS SINGLE UNITS, NOT IN PAIRS!

Grin Tech Rev3 Front Torque Arm is a universal front torque arm.

For forks that don’t have fender eyelets, or where the fender eyelet holes don’t line up, GT created an updated variant of the original hose-clamp model with the Rev3 layout. Here, there are small slits for 2 or even 3 hose-clamps to provide extra spinout strength, and the long curved slot in the axle plate allows for for the clamping arm to

Grin Tech Torque Arms: Rev4 Rear Torque Arm

TORQUE ARMS ARE SUPPLIED AS SINGLE UNITS, NOT IN PAIRS!

Grin Tech  Rev4 Rear Torque is universal

Rear bicycle dropouts are usually thicker and stronger than the front fork dropouts, so more often than not a rear torque arm isn’t necessary. But in cases with shallow vertical dropouts, or with powerful (>1000 watts) motor setups, it can be as important as the front. GT’s Rev4 design uses multiple hose clamp slots to secure to the arm to a seatstay tube. The axle plate can flip directions to accommodate both horizontal and vertical dropouts, while the hose-clamp arm clears up and over most eyelet holes present on the rear. Generally a single rear torque arm is sufficient, but for extreme applications, a second torque arm would be a useful addition.

See more details on the Grin Tech Torque Arms here.