Shimano 105 (R7100) 12 Speed Gear Service Kit

This comprehensive kit provides a matched CN-M7100 chain, CS-R7101 cassette, and RD-R8100 pulley set specific to the performance-focused Shimano 105 12-Speed (Di2 and non-Di2) system. This bundle offers a significant combined discount over buying individual components.

Routine replacement is vital, as worn components severely reduce Hyperglide+ shifting accuracy and overall efficiency. A worn chain stretches, causing misalignment with the cassette teeth.

It is crucial to replace all three parts simultaneously. Fitting a new chain onto a worn cassette causes immediate skipping and dramatically accelerates wear on the new component. Our matched kit ensures peak performance, maximizing your entire drivetrain's lifespan right away.

Included:

• 105 R7101 - HYPERGLIDE+ - 12-speed - 11-34 (CSR710112134)
• CN-M7100 SLX - with quick link - 12-speed - 126L (CNM7100126Q) 
• RD-R8000 tension and guide pulley set (Y3E998010)