1. Aluminum alloy, CNC cutting 2. Standard thread pattern, no different thickness of threads, high precision 3. Cool laser mark, personalized and non-fading 4. Lightweight design, no impact on riding 5. Material: CNC7075 aluminum alloy 6. Size: about 16.9 x 8.1 x 2.68cm 7. Weight: M18 about 7.5g, M20 about 9.2g
