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Our pulleys are equipped with aluminum cogs and serviceable bearings that resist the most challenging mountain bike conditions
use a 16 notch tool with an internal diameter of 42
Shimano 12-speed Ultegra/XT (fits all Shimano road and MTB 12-speed drivetrains)
Chains are available in
No adapters
Oversized Derailleur Pulleys for Shimano Ultegra R8000 - Hybrid Ceramic - 12/14T derailleurtype-Sram Our pulleys are equipped withOversized pulleys fit the latest generation of Shimano derailleurs: Dura Ace R9100, Ultegra R8000 R8100 and 105 R7000. By using the standard cage on your Shimano derailleur, you will feel the benefits of reduced articulation in the chain, while retaining accurate shifting. Something that has been a negative side effect of many large pulley systems. Switching to an oversized set might require to install a longer chain. Here is a video explaining how to
