AEST YPU09A-13 Rear Derailleur Pulley - Blue
Brand AEST - Model YPU09A-13 - Ceramic bearing feature: High Speed - High rigidity - Long use-life - Low heat - Low heat dilating rate - Corrosion resistance - Non-magnetic - Color: Blue - Material: Aluminum alloy - Functions: Transmission chain and change speed - Inner diameter: 5mm - Best use: Cycling Mountain biking road cycling - Packing list: 1 x Rear derailleur pulley