גלגל הילוכים של מכונית מתקפלת גלגל שיניים

material: plastic
Features:
1. The chainring guard prevents the trousers from being easily transferred into the chainring gear during riding, and has the effect of preventing breakage and oil.
pay attention:
The chainring shell is single-sided, and it is not suitable for vehicles that need to be installed on both sides, such as folding cars.