RD-7900-SS

Information from: www.shimano.com.

Dura-Ace Rear Derailleur. Strong, sleek and innovative, the new Dura-Ace 7900 rear derailleur features Carbon Composite upgrades and is compatible with wide gear ratios.

Features

Wide Link Design | Increases shifting precision

Wide gear-ratio compatible | 28T cog max capacity

Carbon pulley plate | Lightweight & rigid

Specifications

Average Weight: 166g

Inner Plate: carbon

Outer Plate: carbon

Link Pin Bushings: fluorine coated (4)

Inner Link: cold forged aluminum/anodized

Outer Link: cold forged aluminum/anodized

Plate Pivot Seal: single O-ring

Plate Body: engineered plastic/painted

Bracket Pivot Seal: double O-rings

Bracket Body: cold forged aluminum/anodized

Tension Pulley: sealed bearing

Guide Pulley: sealed bearing

Total Capacity: 33T

Maximum Front Difference: 16T

Minimum Sprocket: 11T

Maximum Sprocket: 28T

Cassette Compatibility: 10-speed

Series: DURA-ACE

Model Number: RD-7900