Grin Rear Motor - V3 Rear All-Axle, Slow Wind - Black - HG Freehub

The Grin All-Axle hub is a direct-drive motor series designed to be universally compatible with all the varieties of quick-release and thru-axle mounting standards that exist in the bike world these days. It solves the compatibility problem between hub motors and modern bicycle frames, it provides the benefits of direct drive without the traditional heft, and it simplifies installation with integrated torque arms and torque sensors. 

The All Axle motor has the following characteristics:

• 4.0 kg motor weight (vs >6kg for comparable generic DD motor)
• 0.35mm Laminations for low motor drag when pedaling unassisted
• Integrated Torque Arm with secure fork mounting clamp
• Fits Almost All Front Fork Standards (regular quick release, QR12x100, QR15x100, QR15x110 Boost, QR15x150 Fatbike, QR20x110
• Fits Most Rear Dropout Standards (135mm quick release, 12x142 Thru Axle, 12x148 Boost Thru Axle)
• Compatible with Single Side Installation on many trike and quad vehicles
• Uses 32 Spoke Holes for vastly more in stock rim options
• 18mm Disk Caliper Clearance fits most (but not all) calipers without spacers
• Statorade Compatible with side cover injection port
• Available in both metallic silver and black anodized finish
• Designed and Assembled in Canada