Shimano XT M8100 1x12 drivetrain kit 5-peice (crank options) BOOST 32T

This listing is a package deal for a Shimano XT M8100 1x12 drivetrain group What is in the box:
1x 10-51T cassette
1x 12-speed chain
1x rear shifter 12spd  bar clamp
1x rear derailuer 1x12
1x M8120 BOOST crankset w/ 32T direct mount ring Recycledmountainracing.com notes:
We are very stoked on the new M8100 1x12 components - Please note:
The cassette requires Shimano's new micro-spine free-hub body (not included - message us if you have questions)
The I-spec shifter is a new version called "I-spec EV" in it is not backwards compadable and will need a M8100 series brake lever to mount
***Choosing a crank**** there are 3 basic crank options for single ring:
1) FC-M81 20-
1 (think Boost)
-   178mm Q-Factor
-   55mm chain line works with 148 O.L.D.
-   Prioritizes frame and tire clearance
2) FC-M81 00
-1  (get this for 142x12 rear hubs or if your doing boost but need narrower cranks)
-   172mm Q-Factor
-   52mm chain line works with 142 or 148 O.L.D.
-   Prioritizes narrowest possible Q factor
3) FC-M81 30
-1 (super boost - is your frame a Pivot? got super boost?)
-   181mm Q-Factor
-   56.5mm chain line works with 157 O.L.D. -------------------------------------------------------------------------------------------------------------  
aftermarket packaging - including manuals
full manufacturer warranty Got Questions? Message us!
Manufacturer Specs: SHIMANO DEORE XT Right Shift Lever 12-speed
SL-M8100-R
SHIMANO's RAPIDFIRE PLUS DEORE XT shift lever delivers light and responsive front shifting for improved control out on the trail. The new I-SPEC EV lever offers a wide range of adjustments including increased lever slide range.

FEATURE

Quicker lever access and light operation

Instantaneous push and pull movements

-35% shifting operation force (vs SL-M8000-R) 20% quicker main lever access (vs SL-M8000-R)

BENEFIT

Quick and easy shifting heightens focus and control SHIMANO DEORE XT Right Shift Lever I-SPEC EV 12-speed
SL-M8100-IR
SHIMANO's RAPIDFIRE PLUS DEORE XT shift lever delivers light and responsive front shifting for improved control out on the trail. The new I-SPEC EV lever offers a wide range of adjustments including increased lever slide range.

FEATURE

Quicker lever access and light operation

Instantaneous push and pull movements

-35% shifting operation force (vs SL-M8000-IR) 20% quicker main lever access (vs SL-M8000-IR)

Adjust to the optimal position for any riding style or rider preference with clean cockpit

BENEFIT

Quick and easy shifting heightens focus and control

Customizable ergonomics

HOLLOWTECH II Crankset FC-M8120-1
HOLLOWTECH II Crankset

FEATURE

Special MTB gear teeth profile improves chain engagement and retention

Hollow forged crank maximizes power transfer while limiting weight

BENEFIT

Superior chain retention

Rigid and lightweight design for aggressive trail riding

Q-factor: 178 mm

Chainline: 55 mm

Weight: 616 g (28T), 630 g (30T), 628 g (32T), 642 g (34T), 660 g (36T)

Chain line (mm)
55 SHIMANO XT Threaded Bottom Bracket 68/73 mm shell width BB-MT800
For SHIMANO 24mm MTB cranks, the SHIMANO SLX bottom bracket uses high quality sealed bearings and is offered in threaded and pressfit options
MODEL NO
BB-MT800
SERIES
SHIMANO DEORE XT M8000 Series
Average weight
82 g
HOLLOWTECH II BB_Threaded BB type
✔ SHIMANO DEORE XT Chainring 12-speed
SM-CRM85
SHIMANO's DEORE XT SM-CRM85 stiff and lightweight chainring delivers smooth pedaling over bumpy terrain. The SM-CRM85 chainring features SHIMANO DYNAMIC CHAIN ENGAGEMENT+ technology, which features special gear teeth profiles that deliver exceptional chain engagement and chain retention.

FEATURE

Special MTB gear teeth profile improves chain engagement and retention

Exchangeable single/double chainring

Crankset can be used as common component

BENEFIT

Superior chain retention

Rider tunable

Gear combination: 28T, 30T, 32T, 34T, 36T

SHIMANO DEORE XT Rear Derailleur 1x12-speed RD-M8100-SGS
The all-new SHIMANO DEORE XT M8100 series of derailleurs brings a new level of drivetrain silence thank to decreased tension in the low gear position and an added bumper on the pulley cage. Larger 13T pulleys increase efficiency and chain management while compatibility with SHIMANO's new 12-speed cassettes boosts range.

FEATURE

Faster and shockless shifting

Low-profile design

Wide range 12-speed drivetrain with low sprocket combination -10-51T

Decreased rear derailleur and chain tension in low gear

New bumper added to rear derailleur pulley cage

Bigger 13T pulley

BENEFIT

Fast and precise shifting performance optimized to take on any trail

Silent drivetrain in all gear positions

Stable drivetrain on rough terrain

SHIMANO DEORE XT 12-Speed MTB Cassette Sprocket CS-M8100-12
With its BEAM SPIDER construction, the new SHIMANO DEORE XT M8100 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, these 10-45 and 10-51T cassettes deliver advanced shifting performance.

FEATURE

New shift ramp designs provide the fastest, smoothest shifts by HYPERGLIDE+

Lighter and stiffer construction

Reduces cassette inertia resulting in faster acceleration and increased chain security

10T lowest sprocket realized by new FREEHUB body construction

BENEFIT

Definitive shifting performance

MICRO SPLINE

Wide range and close step 12-speed drivetrain

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