This bike rear derailleur pulley wheel is constructed of 7075 alloy, lightweight and . It is a accessory for your .
Features：
Anodized machined construction.
Ceramic bearings.
Fits for 4/5/6mm roller screw and most of rear derailleur on the market, support 7/8/9/10 .
Rust/Corrosion Resistant Anodized.
Specification:
Product: Rear Derailleur Pulley Wheel
Brand:
Material: 7075 alloy & Ceramic bearings
Color: Black / / Blue / Red / Golden (Optional)
Size: 11T / 13T (Optional)
Diameter: 41mm
Package Size: 7 * 4 * 1cm / 2.8 * 1.6 * 0.4in
Package Weight: 10g / 0.35oz
Package List: Y4297G-11
1 * 11T Wheel
Features：
Anodized machined construction.
Ceramic bearings.
Fits for 4/5/6mm roller screw and most of rear derailleur on the market, support 7/8/9/10 .
Rust/Corrosion Resistant Anodized.
Specification:
Product: Rear Derailleur Pulley Wheel
Brand:
Material: 7075 alloy & Ceramic bearings
Color: Black / / Blue / Red / Golden (Optional)
Size: 11T / 13T (Optional)
Diameter: 41mm
Package Size: 7 * 4 * 1cm / 2.8 * 1.6 * 0.4in
Package Weight: 10g / 0.35oz
Package List: Y4297G-11
1 * 11T Wheel