Shimano Derailleur RDM3020 Acera 7/8 Speed
Shipping Info
Shipping normally takes 3-5 business days. We don't ship on weekends or public holidays.
We offer flat-rate shipping in South Africa. We also offer local pickup from our stores around Cape Town.
International orders carry a minimum spend of R5,500, and takes 7-30 business days to arrive depending on customs.
Bike Size Guide
Choosing the right bike size can be overwhelming, click here to view the general size guide to make things a little bit easier.
Financing Options
Get the bike you want now and pay later with Yonda and Rola Bicycle Finance.
Easy application, fast approval, and tailored repayment plans.
Ride now, pay your way.
Shimano Acera Rear Derailleur RD-M3020 7/8-Speed
What Is It?
The Shimano Acera RD-M3020 is a mechanical rear derailleur designed for 7- and 8-speed mountain bike drivetrains. Featuring Shimano's Double Servo construction, it provides smooth, precise gear changes and reliable performance for recreational riding, commuting and off-road cycling.
Key Features
-
7/8-speed compatibility: Designed for Shimano-compatible 7- and 8-speed drivetrains.
-
Double Servo technology: Supports smooth and precise shifting across the cassette.
-
Long cage (SGS): Accommodates a wide gear range for versatile riding.
-
Wide cassette compatibility: Supports a largest rear sprocket of up to 40 teeth.
-
Cable adjustment barrel: Allows convenient fine-tuning of gear indexing.
-
Durable construction: Combines aluminium, steel and reinforced composite components.
-
Conventional mounting: Attaches to a compatible derailleur hanger.
Specifications
|
Specification |
Details |
|---|---|
|
Brand |
Shimano |
|
Series |
Acera |
|
Model |
RD-M3020-8 |
|
Product Type |
Rear derailleur |
|
Speed |
7/8-speed |
|
Shifting Type |
Mechanical |
|
Cage Length |
Long cage (SGS) |
|
Compatible Chain |
Shimano HG 6/7/8-speed |
|
Maximum Largest Sprocket |
40T |
|
Minimum Largest Sprocket |
30T |
|
Maximum Total Capacity |
45T |
|
Maximum Front Difference |
20T |
|
Mounting |
Conventional derailleur hanger |
|
Colour |
Black |
Benefits
-
Delivers consistent, dependable gear changes.
-
Provides a broad gear range for climbing and varied terrain.
-
Offers compatibility with common 7- and 8-speed drivetrains.
-
Suitable for replacing a worn or damaged rear derailleur.
-
Supports everyday cycling, recreational mountain biking and commuting.
Best Suited For
The Shimano Acera RD-M3020 rear derailleur is ideal for recreational mountain bikers, commuters and everyday cyclists looking for reliable mechanical shifting on a compatible 7- or 8-speed bicycle.
