RD-U6000 FEATURES Stable drivetrain performance on trails, gravel, and city streets Chain stabilizer reduces chain drop, slap and noise Low-profile design is optimized for rough terrain Total capacity: 39T Max low sprocket: 50T (1x11-speed), 48T (1x10-speed) Designed and tested to provide enduring e-biking performance E-BIKE RATED CS-LG400-11 FEATURES Go further with smooth and long-lasting e-biking performance Up to three times the durability of HYPERGLIDE in high chain tension conditions Smooth 2-way shifting (inward and outward) with reduced pedal shock CN-LG500 FEATURES Smooth and reliable shift performance LINKGLIDE technology SL-U6000-R FEATURES Quick lever access and light operation RAPIDFIRE PLUS Easily-visible gear position indicator option improves shifting control OPTICAL GEAR DISPLAY 2-WAY RELEASE ***These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging.***