- 749
- 2
- 11
- 31T
- 42T
- LINKGLIDE, HG 11-speed
Specifications
As listed in the manufacturer's catalog.
General
- Series
- GRX
- Color / 1
- Series color
- Rear speeds
- 11
- Compatible chain
- LINKGLIDE, HG 11-speed
- RD construction / SHIMANO SHADOW RD+
- Yes
- Cable adjuster
- Yes
- Total capacity
- 31T
- Fluoric coated link bushings
- 4
- P-axle / Material
- Steel
- Plate body / Material
- GFRP
- Outer plate / Material
- Aluminum
- Inner plate / Material
- Aluminum
- Average weight (g)
- 267
Applicable derailleur hanger
- SHIMANO ROAD type / Direct attachment (conventional)
- Yes
- SHIMANO ROAD type / Direct mount
- Yes
Low sprocket
- Max.
- 42T
- Min.
- 40T
Top sprocket
- Max.
- 11T
- Min.
- 11T
Pulley
- Guide pulley bearing
- Yes
- Tension pulley bearing
- Yes
- Teeth
- 11T
- Screws material
- Stainless steel
- Sunken type pulley screw
- Yes
Bracket
- Material
- Aluminum
- Finish
- Anodized
B-axle
- Hollow axle
- Yes
- Material
- Stainless steel
B-axle 2
- Material
- Aluminum
- Finish
- Anodized
Bracket body
- Material
- Aluminum
- Finish
- Painted
Outer link
- Material
- Aluminum
- Finish
- Painted
Inner link
- Material
- Aluminum
- Finish
- Painted
Cable fixing screw
- Material
- Stainless steel
- Finish
- Passivation
Stroke adjusting screw
- Material
- Steel
- Finish
- Plated
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 RD-RX812
-
Shimano GRX RX812
-
GRX RD-RX812 - (42T) Rear Derailleur
-
Shimano GRX 11 speed rear Derailleur - Long Cage for 1x
-
Shimano GRX, RD-RX812, Shadow Plus
-
Shimano GRX 812, Shadow RD+
-
Shimano GRX RX812 GS
-
Shimano GRX RX812 Rear Mech (42T Max)
Bicycles
Published bicycles that use it, newest model years first.
