Rear derailleur Shimano TOURNEY RD-TY300B Adapter 6/7-speed OEM

Shimano Tourney entry level rear derailleur for 6 and 7 speed drivetrain systems. SHIMANO’s double servo-panta mechanism enables the rear derailleur to move in an optimum path. The guide pulley tracks the cogs closely while moving front to back, optimizing each shift. Perfect tracking contributes to the most accurate SIS shifting. This system keeps rear derailleur guide pulley an optimum distance from each sprocket.SIS rear index shiftingGroup: Shimano TourneyCompatible with 6 and 7 speed drivetrains (SHIMANO, SRAM, SUNRACE and others)Cage Size: SGSTotal Capacity: 43TMax. Rear Sprocket: 34TMin. Rear Sprocket: 11T13 tooth pulleys offer long service life and less noiseMounting: with adapterWeight: ~ 350 gOEM version: original Shimano RD-TY300 rear derailleur is packed in a zip bag instead of retail carton packaging.Please note that this version is not compatible with bicycle frames, which have replacable dropout hanger. Please inspect you bicycle visually or check the specifications before making a purchase of this item. If you have replaceable frame dropout hanger, please consider buying RD-TY300D instead.Proper adjustment and regular maintenance of the entire shifting system is essential for the smooth operation of the rear derailleur.