Shimano 105 RD-R7100 12-speed Rear DerailleurNo technology or battery level to worry about just your power on the pedal and the road ahead of you Experience the essence of road cycling with this easy to maintain system Fantastically reliable shifting, over and over again Mechanical perfection Wider range capacity Max. low sprocket: 36T Product features Use: Road Group: 105 R7100 Model: RD R7100 Mounting: Direct Mount (conventional) Technology: Shadow RD Gear rear: 12 speed Compatible chain: CN

Fills both fat and skinny tires with ease

9 Rear reflective inserts

2x mounting options: High clamp

Double or Triple:Triple

Backing Plate Material: Steel

Gears：11 Speed

Plus you can adjust the spring tension exactly to your liking

Crank arm length: 170mm

the XTR disc with 6-bolt mount offers first-class

Firmware update by E-TUBE PROJECT       : Yes

Threaded bottom bracket shell width (mm)_70 : Yes

Compatible chain: HG 8/7/6-speed