•Product Advantages: Positive and negative tooth discs, chain drop prevention. Suitable for AM/XC bicycle modification single disc, can reduce weight. The weight can be reduced by approximately 1kg •Waterproof and rust-proof Fearless of wind and drain •Lead Chain Design Shifting smooth: Lead chain design, chain guide tooth shape, not easy to drop the chain Quickly complete gear shifting operations •CNC technology: Lightweight aluminum alloy CNC technology, strong rigidity, high hardness structural stability, intense trampling without deformation, greatly improved durability •Effectively protecting the bicycle frame prevent scratching the surface easy to clean glue is not easy to remain after tearing Specifications: •Thickness: 4MM •Process: CNC machining process •Weight: 32T round •Material: aluminum alloy •BCD: 104MM •104BCD Number of teeth: 32T Package included: •1 x Single Chainring