- 54
- 165 / 170 / 175 / 180
- 55
Specifications
As listed in the manufacturer's catalog.
General
- Series
- DEORE XT
- Model no.
- FC-M8120-1
- Color / 1
- Series color
- Rear speeds
- 12
- Compatible chain
- HG 12-speed
- Chain line (mm)
- 55
- P.C.D. (mm)
- Direct
- Spider/gear arms
- 4
- Chainring combination
-
- Q-factor (mm)
- 178
- Optional chain guard / Without chain/bash guard
- Yes
- HOLLOWTECH II
- Yes
- Compatible bottom bracket type / Outboard
- Yes
- Crank fixing screw included
- Yes
- Average weight (g) (170 mm, w/o bottom bracket)
-
O.L.D.
- Thru (mm) / 148
- Yes
- QR/Nut (mm) / 141
- Yes
Crank arm length (mm)
- 165
- Yes
- 170
- Yes
- 175
- Yes
- 180
- Yes
Recommended bottom bracket
- Threaded (normal)
- BB-MT801
- Press-Fit
- BB-MT800-PA
Threaded bottom bracket shell width (mm)
- 68
- Yes
- 73
- Yes
Crank arm
- Material
- Aluminum
- Finish
- Anodized
Crank axle
- Material
- Steel
- Finish
- Plated
Outer ring
- Material
- Steel (teeth), CFRP (body), Aluminum (arm)
- Finish
- Painted (teeth), Anodized (arm)
How spec sheets write it
The most common ways bicycle spec sheets name it, by number of mentions.
-
Shimano XT FC-M8120-1 / Hollowtech 2; 32T
-
Shimano Deore XT FC-M8120-1, 34T (27.5), 32T (29), 170mm
-
SHIMANO Deore XT M8120-1 Hollowtech II (32T) - length 175 mm
-
SHIMANO Deore XT M8120-1 Hollowtech II (34T) - length 170 mm
-
SHIMANO Deore XT M8120-1 Hollowtech II (34T) - length 170 mm (M), 175 mm (L)
-
Shimano XT, FC-M8120-1, 165mm, 32T chainring, 55:CL
-
Shimano XT, FC-M8120-1, 32T, 165mm, 55:CL
-
SHIMANO Deore XT FC-M8120-1, 32 teeth, 170mm
Bicycles
Published bicycles that use it, newest model years first.
