One of the great pleasures of modern biking is the ability to upgrade your own bike. These days, just about every component can be swapped out for something sturdier and more functional. Better yet is to get your hands on a full upgrade kit, and if you’re looking for the best kit on the market, the 12-speed upgrade kit from Shimano is a good contender.

In fact, the Shimano Deore M6100 is one of the best cassette upgrade kits around. Made using only the best materials and with machine-grade precision, it’s also extremely lightweight, making it the perfect way to shave a few extra grams off of your ride. Thanks to its Micro Spline technology, along with Hyperglide+, this extensive upgrade is a must for anyone serious about getting the most out of their bike.

The Shimano Deore M6100 12-Speed Upgrade Kit is the perfect way to learn more about your bike and how to make it even more powerful than before. Shimano upgrade kits are also extremely easy to install, meaning that you can expect improvements with just a few hours of work. Everything you need to make your bike better is available with the Deore M6100 upgrade kit.

SHIMANO DEORE - 12-Speed - HYPERGLIDE+ - MTB Cassette Sprocket

With its BEAM SPIDER construction, the new SHIMANO DEORE M6100 12-speed cassette shaves weight while increasing SHIMANO's MTB gearing range another gear. Using SHIMANO's new MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile, the 10-51T cassette delivers advanced shifting performance.

Trickle down technologies at its best
HYPERGLIDE+ provides fast and smooth shifting
BEAM SPIDER construction cuts weights and boosts stiffness
10-51T wide range 12-speed gear combination

SHIMANO DEORE - RAPIDFIRE PLUS - Right Shift Lever - Clamp Band - 12-speed

SHIMANO's RAPIDFIRE PLUS DEORE shift lever delivers light and responsive shifting for improved control out on the trail.

Quick and easy shifting
Quicker lever access and light operation
Shifts max. 3 gears at a time (Main lever)
Easily-visible gear position indicator option improves shifting control
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SHIMANO DEORE - Rear Derailleur - SHIMANO SHADOW RD+ - 1x12-speed

The all-new SHIMANO DEORE M6100 rear derailleurs deliver advanced shifting performance with decreased tension in the low gear position. Larger 13T pulleys increase efficiency and chain management while compatibility with SHIMANO's new 12-speed cassettes boosts range.

1x12-speed SHIMANO SHADOW RD+ rear derailleur
Fast and precise shifting for modern mountain biking
Silent drivetrain in all gear positions
Decreased rear derailleur and chain tension in low gear
Bigger 13T pulley
Stable drivetrain in rough terrain
Low-profile design avoids damage from rocks
Chain stabilizer reduces chain drop, slap and noise
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SHIMANO DEORE - 12-speed - HG - MTB Chain

The M6100 chain provides smooth shifting and enhanced chain retention thanks to an extended portion of the inner plate. The new chain features QUICK-LINK assembly and is optimized for HYPERGLIDE+ cassettes and DYNAMIC CHAIN ENGAGEMENT+ chainrings.

Proprietary design ensures smooth shifting and strength
Extended inner plate improves chain engagement and retention
Shorter shift times and less pedaling shock
Optimized to work with HYPERGLIDE+ cassette sprockets and DYNAMIC CHAIN ENGAGEMENT+ chainrings