14mm High-Speed ​​Hub Motor Nut Set for Electric Bicycles/Electric Scooters, designed for 500W-2000W high-speed motors, capable of withstanding continuous impacts at speeds exceeding 70 km/h. Made of grade 10 high-strength carbon steel, with an overall thickness increased by 2mm, featuring a three-layer galvanizing + black passivation anti-rust process, and showing no red rust after 72 hours of salt spray testing.
Set includes:
2 × 14mm diameter anti-loosening main nuts (thickened type)
2 × serrated cup-shaped safety washers (hardness HRC 38)
2 × 5mm torque arm reinforcing washers (double-sided milled arc, conforming to the shaft shoulder)
2 × dustproof and rainproof nuts (built-in O-ring)
Prevents loosening during high-speed riding; the torque arm reinforcing washers distribute stress at the shaft opening, preventing shaft deformation caused by sudden high-power acceleration. 32mm standard hexagonal joint with opposite sides, easy to install with a household wrench.
This product is compatible with 90% of mainstream high-speed electric bicycles, electric motorcycles, fat tire bikes, and off-road scooters with a 14mm axle diameter. The entire set is packaged in an environmentally friendly blister box, which is rust-proof, impact-resistant, and convenient to carry with you.