XTR HOLLOWTECH II MTB Crankset 168 mm Q-Factor 2x12-speed

FC-M9120-B2

Series color
FC-M9120-B2

FC-M9120-B2

XTR - HOLLOWTECH II - MTB Crankset - 168 mm Q-Factor - 2x12-speed

The SHIMANO XTR FC-M9120-B2 crank features an entirely new construction, using direct mount chainrings, special gear tooth profile for improved chain retention, and a narrow 182mm Q-factor. The FC-M9120-B2 uses a 51.8mm chain line and can be converted between 1x and 2x, with 38-28T chainrings available. On offer are 165, 170, and 175mm crank arms.

Front double
Combine wide range and close gear steps
Alloy inner chainring is installed with outer chainring by bolts
Faster acceleration
New drive system
Smoother driving even over bumpy terrain
Special gear teeth profile designed for MTB riding usage
Lighter and stiffer design & easy exchangeable chainring by direct mount and one key release
Exchangeable of single and double chainring by direct mount
Crankset can be used as common component
Q-factor: 168 mm
Chainline: 51.8 mm

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TECHNOLOGIES

PRODUCT SPECIFICATIONS

MODEL NO	FC-M9120-B2
SERIES	XTR M9100 Series
Color	Series color
Average weight	616

Chainring combination	38-28T
Compatible bottom bracket type_Outboard	✔
Crank fixing screw included	✔
Crank arm length (mm)_165	✔
Crank arm length (mm)_170	✔
Crank arm length (mm)_175	✔
Spider/Gear arms	4
HOLLOWTECH II	✔
Optional chain guard_Without chain/bash guard	✔
Recommended bottom bracket_Press-fit	SM-BB94-41A
Recommended bottom bracket_Threaded (normal)	SM-BB93
Threaded bottom bracket shell width (mm)_68	✔
Threaded bottom bracket shell width (mm)_73	✔
Q-factor (mm)	168
Chain line (mm)	51.8
Compatible chain	HG 12-speed
P.C.D. (mm)	Direct
Rear speeds	12 (Front double)
O.L.D._QR/Nut (mm)	141
O.L.D._Thru (mm)	148