Steel bearings provide smooth performance for your paddling experience. 58% lighter and 120% harder, the pulley ensures creamy chain rotation with reduced friction and noise. Oversized 14 and 16-tooth pulley design features wide and narrow tooth profiles for precise chain engagement, improved performance, and significantly reduced friction. Compatible with GX AXS Eagle 12-speed systems, offering minimal drag. Designed for durability, TRiPEAK steel bearing pulleys maintain consistent performance over extended use. Built for off-road conditions: waterproof, dustproof, and resistant to deformation. Features sealed bearings to keep debris out and ensure reliable operation. Material: Plastic and metal Color: Black Package Contents: 2 x Guide wheels with positive and negative teeth (14T + 16T) 4 x Washers 1 x Wrench Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1-3 cm.