Rear Derailleur Shimano Tourney RD-TY300 Direct-Mount Color:Black It improves efficient pedaling by

It improves efficient pedaling by helping with the quick recognition and capture of the proper foot position

resulting in improved tire performance and dependability

Anti-sway holds keep bikes in place during transportation

you can easily inflate and deflate to your desired pressure

For use on linear pull

Rear Derailleur Shimano Tourney RD-TY300 Direct-Mount Color:Black It improves efficient pedaling byThe Shimano Tourney RD TY300 Direct Mount Rear Derailleur is an excellent gear designed for quick and easy gear changes. The Shimano Tourney TY300 derailleur is accessible with 6 and 7 speed SIS Index Shifting Drive Systems and is available in a variety of fitments and cage choices.