12T Narrow-Wide Ceramic Pulley Wheels If you are looking to replace or upgrade your drivetrain we ensure our 12T Narrow-Wide Ceramic Pulley Wheels perform to the highest of standards. Lightweight but heavy duty our 12T Narrow-Wide Ceramic Pulley Wheels are sure to impress! Spec : Crafted from billet aluminum, CNC Machines, and Anodised Hybrid ceramic bearings add for longevity and lessened friction. Fully sealed and packed with grease to ensure flawless use all year round Ultra lightweight at only 23g per set (11.5g per wheel) Available in 11 anodized colours. Included: 2x Narrow Wide 12T Pulley Wheels (1 set)