VGEBY1 Bicycle Derailleur Jockey Wheel - Sealed Bearing Rear Derailleur Pulley Guide Wheel Replacement for MTB/Road Bikes - Smooth Shifting for Mountain Biking & Commuting

Features: TOP QUALITY: Derailleur Jockey Wheel adopts high quality aluminum alloy materials, which is durability and high strength to use. REDUCE DRAG: Ceramic material can reduce drag force which can improve cycling efficiency, very helpful when cycling. SILENT EFFECTS: Positive and negative tooth guide wheel, there is no strange voice and can get a faster speed. GOOD PERFORMANCE: Stronger compatibility with flexible rotation., suitable for use 4 / 5 / 6 mm guide wheel screws. Specifications: Item: Rear Guide Wheel Material: Aluminum Alloy + Ceramic Color: Black, Red, Blue, Golden (Optional) Support for 7 / 8 / 9 /10 speed bike Diameter: 5 cm / 2.0 inch Weight: 15 g Teeth: 12 Package Included: 1 * Rear Guide Wheel 2 * Installation Hole Adapters

TOP QUALITY Derailleur Wheel adopts high quality aluminum alloy materials, durability and high strength to use.

REDUCE DRAG Ceramic material can reduce drag force which can improve cycling efficiency, very helpful when cycling.

SILENT EFFECTS Positive and negative tooth wheel, there is no strange voice and can get a faster speed.

GOOD PERFORMANCE Stronger compatibility with flexible rotation., suitable for use 4 / 5 / 6 mm wheel screws.

GUARANTEE are not satisfied with our product received, apply for unconditional return and refund within 180 days. any problem of this product, send emails as soon.