Shimano GS RD-TY21 Tourney Rear Derailleur, compatible with SIS INDEX 6-speed shifting, the SHIMANO TOURNEY TY21 Derailleur is available with a wide range of versions and cage options.
- Sales model code: RD-TY21.
- Shimano item code: Gear.
- Cycling discipline: City Touring / Comfort.
- Use: By bike.
- Maximum pinion toothing: 14T.
- Tooth: 11T.
- Total capacity: 34T.
- Number of rear gears: 6.
- SGS GS SS cage: Long cage.
- Minimum sprocket teeth: 28T.
- Compatible chain: 6-speed chain.
- System type: Meccanic.
