1.Single chainring design of wide and narrow teeth to prevent chain drop 2. The five claws are made of high-strength aluminum and have a new hollow structure to reduce the weight of the crank. 3. The crank is made of high-strength aluminum alloy, which will not break and improves safety performance.

1.Single chainring design of wide and narrow teeth to prevent chain drop 2.Specially developed and designed for youth sports bicycles, the shaft-core integrated structure effectively reduces weight and provides better transmission effects. A variety of crank length options are available to meet the needs of different age groups.

1.Wide and narrow teeth, prevent chain drop,CNC wave pattern 2.The crank has its own thread and cotton female nails, effectively reducing weight3. High-gloss surface and sand surface fusion design, reflecting both speed and off-road performance 4. Using crank 4-pin and wide and narrow teeth single chainring split lock formula structure.