Durable Mountain Chain Guide with a full cage design for chain retention of single-ring systems in the roughest riding conditions; engineered to reengage a dropped chain upon forward pedaling while withstanding the added force of backpedaling onto a dropped chain. Durable Mountain Chain Guide with a full cage design for chain retention of single-ring systems in the roughest riding conditions; engineered to reengage a dropped chain upon forward pedaling while withstanding the added force of backpedaling onto a dropped chain. Lightweight, machined aluminum cage limits lateral movement of the chain to prevent derailment Compatible with single-ring frames using integrated braze-on front derailleur mount, and braze-on adapter clamps Adjustable for height, pitch, angle (yaw), and chainline Accommodates 30T to 36T Chain Rings and 28T to 34T Ovalize Chain Rings