- 462
- 2
Specifications
As listed in the manufacturer's catalog.
General
- Series
- GRX
- Color / 1
- Series color
- Rear speeds
- 12
- Compatible chain
- HG 12-speed
- Spider/gear arms
- 4
- Q-factor (mm)
- 151
- Optional chain guard / Without chain/bash guard
- Yes
- HOLLOWTECH II
- Yes
- Compatible bottom bracket type / Outboard
- Yes
- Outer ring / Material
- Aluminum
- Crank fixing screw included
- Yes
Crank arm length (mm)
- 160
- Yes
- 165
- Yes
- 170
- Yes
- 172.5
- Yes
- 175
- Yes
Recommended bottom bracket
- Threaded (normal)
- SM-BBR60
- Press-Fit
- SM-BB72
Threaded bottom bracket shell width (mm)
- 68
- Yes
- 70
- Yes
Crank arm
- Material
- Aluminum
- Finish
- Anodized
Crank axle
- Material
- Steel
- Finish
- Plated
Outer/middle ring fixing bolt
- Material
- Aluminum
- Finish
- Anodized
Variants
The manufacturer's versions of this model (code suffix, color, cage). Each figure counts spec sheets that name that exact version; most name only the model.
How spec sheets write it
The most common ways bicycle spec sheets name it, by number of mentions.
-
Shimano GRX RX820 48/31
-
Shimano GRX RX820 1x 40T
-
GRX RX820 48/31
-
GRX RX820-1 1x12 Chainset-170mm-40T
-
Shimano GRX 820, 48-31 T, Hollowtech II
-
Shimano GRX820 40T
-
GRX RX820-2 2x12 Chainset-170mm - 48-31T
-
Shimano GRX FC-RX820, 48x31T
Bicycles
Published bicycles that use it, newest model years first.
