- 504
- 1
- 8/7
- 45T
- 40T
- HG 8/7/6-speed
Specifications
As listed in the manufacturer's catalog.
General
- Series
- ACERA
- Model no.
- RD-M3020-8
- Color / 1
- Black
- Rear speeds
- 8/7
- Compatible chain
- HG 8/7/6-speed
- RD construction / Double servo
- Yes
- Applicable derailleur hanger / SHIMANO MTB type / Direct attachment (conventional)
- Yes
- Cable adjuster
- Yes
- Max. front difference
- 20T
- Total capacity
- 45T
- Fluoric coated link bushings
- 1
- B-axle / Material
- Stainless steel
- Plate body / Material
- PA+GF
Low sprocket
- Max.
- 40T
- Min.
- 30T
Top sprocket
- Max.
- 12T
- Min.
- 11T
Pulley
- Teeth
- 11T
- Screws material
- Steel
- Sunken type pulley screw
- Yes
Bracket body
- Material
- Aluminum
- Finish
- Painted
P-axle
- Material
- Steel
- Finish
- Zinc plated
Outer link
- Material
- Steel
- Finish
- Painted
Inner link
- Material
- Steel
- Finish
- Zinc plated
Outer plate
- Material
- Steel
- Finish
- Painted
Inner plate
- Material
- Steel
- Finish
- Painted
Cable fixing screw
- Material
- Steel
- Finish
- Zinc plated
Stroke adjusting screw
- Material
- Steel
- Finish
- Zinc 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 Acera RD-M3020
-
SHIMANO ACERA 8-speed
-
Shimano RD-M3020, 8-Speed
-
Shimano Acera 8sp
-
Shimano Acera M3020-8, 40T max cog
-
Shimano Acera M3020-8 SGS
-
SHIMANO ACERA M3020
-
Shimano Acera, RD-M3020-8, 7/8-speed, Total capacity: 40 T
Bicycles
Published bicycles that use it, newest model years first.
Showing 12 of 504 bicycles