⚙️ Shift into the future with Shimano precision!
The Shimano Acera RD-M3020-SGS Rear Derailleur features a Double Servo mechanism for optimal shifting accuracy, supports 7 and 8-speed drivetrains, and includes a long cage design with a 45-tooth chain wrap capacity. Engineered for durability and versatility, it’s a reliable upgrade for riders seeking smooth performance across varied terrains.
| Mounting Type | Braze-On Mount |
| Number of Teeth | 45 |
| Manufacturer | Shimano |
| UPC | 192790897738 |
| Item Package Dimensions L x W x H | 7.01 x 4.13 x 3.78 inches |
| Package Weight | 0.38 Kilograms |
| Item Dimensions LxWxH | 7.01 x 0.84 x 4.06 inches |
| Brand Name | SHIMANO |
| Warranty Description | 2 years |
| Model Name | M3020 Acera |
| Suggested Users | Rear Derailleur |
| Number of Items | 1 |
| Part Number | ERDM30208SGSL |
| Included Components | Rear Derailleur |
| Size | SGS Long Cage |
M**E
Excellent Rear Derailleur for 8-Speed Cassettes
We bought this rear derailleur to replace the Alivio 8-speed derailleur on my son's MTB. We have put it through its paces and it has seen a lot of use. As can be expected of Shimano equipment, it shifts very well. The index shifting is accurate and, of course, any mid- to high-end Shimano equipment is always very durable. The smooth and black design also give it a sharp appearance.
S**A
Muy buen desviador..
Excelente producto... la cambios los ejecuta perfectamente ...
L**N
no instructions, see online how to
works well
D**S
solid upgrade!
Swapped it in a banged up one on my specialized roll 2.0 sport - looked for an upgrade and my gear changing is perfect now (one slight click and a perfect change)(also through on a new chain - runs like a dream now). Would note that I also bought a new derailer hanger - they are designed to bend first so if you are upgrading an old one that's been dropped a few times you probably need a hanger too (they are about $10-$15 and specific to your bike).
J**Y
Decent replacement
No complaints
O**6
Perfect
Perfect for the build, works
D**E
No hassle fitment! Made my upgrade easy!
Upgraded drivetrain on wifes Aventon LEVEL II from 8 speed 12-32 cassette to 11-40, needed a derailleur to accommodate the larger cog. Works perfectly! (Recommended)
K**Z
Good
Good
Trustpilot
Hace 1 semana
Hace 1 mes
