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⚙️ Shift into the future of smooth rides — don’t get left behind!
The Shimano Acera RD-M3020-SGS Rear Derailleur features advanced Double Servo technology for precise shifting, a long cage with 45-tooth chain wrap capacity for versatile terrain handling, and compatibility with 7 and 8-speed drivetrains. Built from durable aluminum and designed for easy braze-on mounting, it’s the perfect upgrade for riders seeking reliable, smooth performance on any ride.
| ASIN | B0BGFBSYQ3 |
| Best Sellers Rank | #117,621 in Sporting Goods ( See Top 100 in Sporting Goods ) #140 in Bike Shifters & Parts |
| Brand | SHIMANO |
| Brand Name | SHIMANO |
| Case Material Type | Aluminum |
| Color | black / black |
| Colour | black / black |
| Customer Reviews | 4.7 out of 5 stars 191 Reviews |
| Included Components | Rear Derailleur |
| Item Weight | 0.39 Kilograms |
| Item weight | 0.39 Kilograms |
| Manufacturer | SHIMANO |
| Manufacturer Part Number | ERDM30208SGSL |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Number | ERDM30208SGSL |
| Mount Type | Braze-On Mount |
| Mounting type | Braze-On Mount |
| Number of Items | 1 |
| Number of Teeth | 45 |
| UPC | 192790897738 |
J**7
Calidad
Execelente
T**R
Proper Derailleur for the old bycicle
I have a Fuji Sunfire hybrid bicycle. Long time ago the original derailleur was damaged and somebody in the bike shop told me to get Deore Derailleur because it is considered to be higher end. At that time I did not realize that the Deore is for another speed count and struggled for years as it did not shift correctly. Finally started to research and found the Acera is the one that fits my bicycle. Got this one, installed and suddenly the bicycle is shifting good, running good and does not make any problems anymore.
J**F
Nice derailleur for reasonable price
Works great on my wife’s bike after adjusting. Can handle larger cassette than older Acera Derailleur. Shift well. Using on a 1 by 8 speed cassette, shout also work with a 2 or 3 speed front derailleur.
A**A
hat sie gepasst auf meiner Cube, läuft gut
Schaltwerk fahrad
F**O
Shimano quality ⭐⭐⭐⭐⭐
Really good quality. Smooth gear change and works 👍🏽 great.
Trustpilot
1 month ago
2 days ago