The Torque Arm V7 is Grin's state-of-the-art arm for regen-capable systems, sized here for M12 threaded axles. Instead of relying on axle flats alone, a solid machined clamping block grips the axle hard — the right choice when your system pushes power back through the axle during regen braking.

Specs:

• For regen systems with M12 (12mm) threaded axles
• Solid machined clamping block, hardened 17-4 stainless
• Grade 12.9 bolts apply 1500+ lb of clamping force to the axle flats
• 11mm thick for maximum engagement
• Splined arm interface, front or rear; deep "J" curve reaches fender/rack eyelets
• All stainless; designed, tested, and made in Canada