FIRST LOOK: 2021 SHIMANO DEORE MTB DRIVETRAIN

New SHIMANO DEORE components deliver a new level of premium performance to the value category by bringing hallmark elite mountain bike technologies to a new price level. SHIMANO DEORE M6100 is a no-compromise component group, offering a full 510% gear range and all of Shimano’s top 12-speed technological innovations first introduced with XTR M9100. SHIMANO DEORE also builds on its legacy as a versatile, value-focused group by broadening its ranges with 10- and 11-speed options.

SHIMANO DEORE M6100

The M6100 drivetrain packs Shimano’s pinnacle 12-speed mountain bike technologies: wide range 10-51T cassette, HYPERGLIDE+ technology, I-SPEC EV, DirectMount chainrings, extended inner-link plate chain, and MICRO SPLINE FREEHUB design.

SHIMANO DEORE M5100

M5100 components build on 11-speed mountain bike drivetrain technologies offering a redesigned rear derailleur, wide range 11-51T cassette, and I-SPEC EV technology.

SHIMANO DEORE M4100

Bringing value and versatility into the existing 10-speed platform. An 11-46T cassette, I-SPEC EV brakes and shifter options, and a rear derailleur with a 40% price reduction bring expanded capability to 10-speed mountain bikes and provide significant upgrade potential.

SHOP: SHIMANO DEORE M6100 | ALL SHIMANO PRODUCTS | WHICH COMPONENTS DO I NEED?

SHIMANO DEORE M6100: 12-Sp Trickle Down Technology

Delivering SHIMANO’s premium technology and shifting performance, the new SHIMANO DEORE M6100 drivetrain delivers more efficient shifting up and down the cassette with HYPERGLIDE+ technology. The MICRO SPLINE FREEHUB design delivers a durable construction that works seamlessly with the system’s new 10T small cog. Adding to SHIMANO DEORE’s performance package is Shimano’s DYNAMIC CHAIN ENGAGEMENT+ that provides stronger chain retention and smoother pedaling. All of this wrapped in a powerful package with stylish details, including color-shifting logos that change hues with light angles.

SHIMANO DEORE M5100 11-SPEED AND M4100 10-SPEED GROUPSETS

Bringing proven technology with expanded applications for value conscious riders, SHIMANO DEORE M5100 and M4100 components deliver the SHIMANO DEORE brand promise of value and versatility. This flexible lineup of components brings a new level of performance in shifting and braking with expanded gear ranges for 10- and 11-speed bikes while also providing opportunities for riders to upgrade their bikes. Capitalizing on the common gear thickness and cable pull ratio of 10- and 11-speed mountain bike systems allows for a simple lineup that maximizes versatility and value. Available in both single and double front chain ring setups, SHIMANO DEORE M5100 and M4100 deliver HG and RAPIDFIRE PLUS technologies with the same I-SPEC EV brake lever and shifter design as the company’s premium mountain bike groups

SHOP: SHIMANO DEORE M6100 | ALL SHIMANO PRODUCTS | WHICH COMPONENTS DO I NEED?

SHIMANO DEORE COMPONENT MAP

Whether you're looking for an affordable option to get into modern 1x12 or trying to breathe some new life into your old 10-speed or 11-speed drivetrains, Shimano's new Deore series components have you covered. M6100 is 1x12 only and utilizes Shimano's Microspline freehub while the M5100 (11-speed) and M4100 (10-speed) series can be had in a 1x or 2x setups and the cassettes are compatible with Shimano's older HG style freehub body meaning you don't have to upgrade to Microspline. Check out the product map below to help you navigate which specific components you'll need to match your drivetrain setup.