A light and durable rear derailleur for top level road use.

• Dura-Ace rear derailleur with lightweight carbon cage and wide link design gives quick accurate shifts, and unmatched drivetrain efficiency
• Full carbon fibre inner and outer pulley plates enhance rigidity and significantly reduce weight
• High tolerance cold forged aluminium link plates and body construction provide for extremely light weight, strength and durability
• High rigidity wide outer link plates the pulley body to increase pivot joint rigidity
• Sealed pulley bearings reduce friction and rotate silky smooth increasing efficiently
• Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting
• Pulleys are made of tough DuPont Zytel for longer life and less chain noise
• With a total capacity of 33 tooth, it is able to operate with wide gear ratios up to a 28 tooth cassette sprocket
• Hard wearing Dura-Ace finish and graphics for long lasting good looks
• 10-speed compatible
• Weight: 166 grams