- 37
- 30T, 32T, 34T
- 165 / 170 / 175
- 55
Specifications
As listed in the manufacturer's catalog.
General
- Series
- SLX
- Model no.
- FC-M7120-1
- 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
- 30T, 32T, 34T
- 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
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), GFRP (body), Aluminum(arm)
- Finish
- Plated (teeth), Painted (body)
How spec sheets write it
The most common ways bicycle spec sheets name it, by number of mentions.
-
Shimano SLX FC-M7120-1 / Hollowtech 2; 55mm CL / 32T
-
SHIMANO SLX M7120-1 Hollowtech II (32T) - length 175 mm
-
SHIMANO FC-M7120-1 SLX 34D 170/175MM 12V CL55
-
Shimano SLX FC-M7120-1
-
Shimano SLX FC-M7120-1; Hollowtech 2; 55mm CL / 30T
-
Shimano SLX FC-M7120-1, Number of chainrings: 1
-
Shimano SLX FC-M7120-1, One-by crankset with direct mount chainrings, optimised gear tooth profile for improved chain retention, and hollow-forged crank for better stiffness-to-weight., Number of chainrings: 1
-
SHIMANO SLX M7120-1 Hollowtech II (32T) - length 175mm
Bicycles
Published bicycles that use it, newest model years first.
