The laser engraving technology is used for a long time without fading, precision CNC machining, and the cut surface is smooth. Protective disc protection design, effectively protect the chainring sprocket without rolling the trousers High-strength aluminum alloy material, light weight, but not easy to bend and not deform. The surface is treated with anodizing. Sandblasting and frosting will form a film on the surface of the disc, which is waterproof and rustproof. Spider web shape, precise tooth shape, aluminum alloy gear plate adopts heterosexual tooth tip, which significantly improves the efficiency of gear shifting Commonly used crankset models 104BCD chain ring: M370/M410 2 hole distance equal to 104mm crank chain ring, etc. purchase guide How to quickly choose a suitable disc 34T: Taking 26-inch wheels as an example, it is more suitable for XC off-road, with sufficient climbing power and fast acceleration 36T: Suitable for riders who cruise 30 yards on flat roads and XC players with better physical fitness 38T: Suitable for players who are inclined to pursue climbing, and cruisers who cruise 32+