CNC ISCG03 ISCG05 Aluminum Alloy BB Mount Single Speed Bike Chain Guide UK

Spec: BB mount / ISCG03 / ISCG05 (optional). Weight: BB mount about 30g, ISCG03/ISCG05 about 26g. Material: 7075 aluminum alloy CNC & Nylon. CNC 7075 aluminum alloy, super light and strong. Never drop a chain again and double your chain ring life.