Retention system for bikes with double or triple chainrings Compatible with most frames Helps provide smooth shifting and prevents chain from falling off in rough conditions In a display box
TECH SPECS
Chain Device Material
Plastic
Mount Type
Universal Clamp
Primary Color
Black
Express delivery and return policies
Free shipping on orders over $30
Processing time: 1-2 Days
Shipping time: 3-5 Days(According to the logistics method and delivery address)
Items can be returned or exchanged within 30 days !
