Rear Derailleur Pulley Sealed Bearing Guide Wheel CNC Machined Change Guide Wheel

This cycle accessory is a rear derailleur pulley designed as a guide wheel assembly for street-bike drivetrain use. Its black carbon-fiber-body styling, skeletonized cage, and two toothed wheels give it a compact mechanical look that fits neatly into the rear derailleur area.As a derailleur guide wheel, it helps guide the chain through the rear derailleur wheel set so the drivetrain can work in an orderly way during gear-changing. The open cutout structure keeps the assembly visually light, while the central mounting structure and metal axle hardware show a straightforward, functional build.The design focuses on practical chain routing clean and simple layout rather than unnecessary bulk. For riders who want a simple replacement part for the rear derailleur pulley area, this guide wheel assembly is made to integrate into street-bike drivetrain setups and support everyday consistent riding function.