Precise, quick-shifting 12-speed road rear derailleur
The SHIMANO 105 12-speed rear derailleur combines the smooth and stable shifting that is a staple of SHIMANO SHADOW RD design with direct mount compatibility and a wider gear range capacity.
Features

Stable shifting performance
SHIMANO SHADOW RD
Wider gear range capacity
Max. low sprocket: 36T
Direct mount compatible

Technical Specifications

MODEL NO: RD-R7100
SERIES: SHIMANO 105 R7100 MECHANICAL Series
Colour: Series colour
Average weight: 249
Rear speeds: 12
Compatible chain: HG 12-speed
Top-normal spring type: SHIMANO SHADOW RD
Mount: Direct attachment (conventional)
Max. front difference: 16T
Total capacity: 41T
Low sprocket|Max.: 36T
Low sprocket|Min.: 34T
Top sprocket|Max.: 11T
Top sprocket|Min.? 11T
Fluoric coated link bushings: 2
Pulley|Teeth: 11T
Pulley: Sunken type pulley screw