An ebike accessory designed to keep motors secure and protect dropouts during heavy acceleration. Riders gain confidence on steep climbs and fast starts thanks to reduced risk of axle spin-outs and frame damage. Is the MetalNuts Ebike Torque Arm Kit the right upgrade for your e-bike?
⚡ At a Glance
- • Durability: 3mm stainless steel arms resist bending and corrosion
- • Best for: DIY e-bike builders, converters and commuters wanting secure motor mounts
- • Not ideal for: Bikes with oversized axles or non-standard dropout designs beyond listed measurements
Constructed from stainless steel with an 86mm arm length and 3mm thickness. Designed with a 14mm x 10mm axle opening and includes reaction arms and fasteners for front and rear motors.
Long-lasting protection - with stainless steel construction
High-quality stainless steel and a 3mm arm thickness resist corrosion and bending under torque loads. Robust material choice maintains mechanical integrity in wet or salty conditions.
Durable reaction arms deliver reliable service life and less maintenance, keeping mounts firm over many rides.
Prevents motor loosening and axle spin-outs - thanks to reaction arm geometry
Reaction arms clamp around the axle and use collars, hex screws and washers to distribute torque away from the dropout. The clamp and arm geometry convert motor torque into reaction forces on the frame rather than allowing axle rotation.
Secure clamping reduces the chance of motor slippage during heavy acceleration or hill starts, protecting the frame and axle.
Quick DIY upgrades for most hubs - with universal 14mm axle opening and included hardware
An 86mm arm length, a 14mm x 10mm axle opening and a 14mm x 10mm C clamp suit common hub motor shafts; the kit supplies long and short arms plus screws, collars, nuts and washers. Parts are designed for front and rear installations.
Straightforward installation for home builders and converters, supplying everything required for a secure fit on many standard hub motors.
✨ The 4 Key Reasons for MetalNuts Ebike Torque Arm Kit
- Stainless steel construction - Long-term corrosion resistance under varied weather conditions and heavy use
- Anti-loosening clamp design - Holds axle securely during heavy acceleration and torque
- Complete hardware kit - Everything needed for front and rear installations included
- Adjustable sizing - Compatible with common 14mm shafts and varied dropout types
📋 Technical Details at a Glance
- Category: Sports, Ebike accessory
- Brand: MetalNuts
- Materials: Stainless steel
- Compatibility: Front and rear hub motors
- Arm length: 86mm
❓ Frequently Asked Questions
Q: Will this fit my motor shaft?
A: Compatibility is stated for motor shafts up to 14mm, with an axle opening of 14mm x 10mm and a corresponding C clamp size.
Q: Can the kit be used on front and rear motors?
A: Yes, the design and included hardware support installations on both front and rear hub motors.
Q: What hardware is included in the kit?
A: The kit contains two long reaction arms, two short reaction arms, two hexagonal screws, two collars, two nuts and four washers for secure mounting.
🏆 Our Verdict
Suitable for DIY builders, converters and commuters who want robust dropout protection and secure motor mounts. Stainless steel arms combined with reaction geometry and a full hardware set provide reliable anti-loosening performance. Offers strong long-term value thanks to durable materials and a comprehensive installation kit.
