BESNIN Chain Guide for Road Bikes Special Bicycle Protector 7075 Aluminium CNC +ABS Bike Direct Mount Front Derailleur Frame Dedicated

Material:Aluminium 7075 CNC +ABS .Weight：52g.Features: durable, lightweight, anti rust.Fashion and simple design,and with beautiful appearance. NOTE about install: only use for ROAD bicycle and only for SINGLE DISC cranks，AND Watch your road bike for mountable lugs!(Not lugs do not have holes for install) Package includes: 1 x road bicycle chain guard, 1 x bolt, 1 x nut,1 x hex spanner The parts that need to be tighten in are marked in the picture. You only need to tighten the blots in 2 places and you complete the installation. Common sense: you need to occasionally check that the bolts are tight, this is for your safety