Shimano Tiagra RD-4700 10 Speed Rear Derailleur Size:GS For 7-speed HG chains

For 7-speed HG chains

Zinc-alloy silver finish on outer plates

5 mm shells

the saddle is long lasting and has comfort built in where needed

Shimano Tiagra RD-4700 10 Speed Rear Derailleur Size:GS For 7-speed HG chainsOffering pro level features, the 10 speed compatible Tiagra rear derailleur gives high performance at a low price Wide link design increases rigidity and service life Advanced light action for low friction shifting up or down the block Alloy body's and outer link leads to lower weight without compromising strength and durability 11 tooth pulleys for reduced pulley wear and chain noise Two fluorine coated link pin bushings for low friction performance