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Shimano

<p>A road-racing design that enjoys outings on gravel, this Ultegra rear derailleur ensures smooth shifting regardless of where you ride. The Shadow design helps keep the derailleur out of harm's way, should your bike take a tumble.</p><ul><li>Lightweight aluminum pulley cage helps reduce weight without affecting performance</li><li>Maximum sprocket capacity is 34T</li><li>Minimum sprocket capacity is 11T</li><li>Maximum front difference is 16T</li><li>Total capacity is 39T</li></ul>

Shimano Ultegra R8000 GS 11 Speed Rear Derailleur

Braze-on mounting uses fittings permanently mounted to the frame. Collar mounted derailleurs secure around the seat tube with a clamp. Direct mount are fastened to the chainstay.

The maximum number of teeth difference between the smallest and largest chainrings (front derailleur) or cogs (rear derailleur).

One-way friction clutch that increases chain tension, reduces chain and cage movement, and reduces dropped chains. Releases for wheel removal. 

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Shimano Ultegra R8000 GS 11 Speed Rear Derailleur

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