1. Material: die-cast aluminum alloy 2. Suitable for: road bikes, mountain bikes and other bicycles 3. Sealed bearing, dustproof and waterproof 4. Wide tread, fit the sole of the shoe in a larger area, better riding power 5. Double DU, the pedals are more lubricated, the rotation is labor-saving, and the riding efficiency is improved 6. 20 anti-skid nails on both sides, making it harder to slip 7. Chrome-molybdenum steel shaft core, universal threaded mouth, lighter and better strength 8. Dimensions: 12.6x10.3x2 cm 9. Weight: about 400 grams
