Features - Shimano ACERA RD-M3020-8
- Double Servo construction for smooth and precise shifting
- Versatile performance and wide compatibility
- Quick assembly
- Allen key type inner cable fixing bolt
- Max. large sprocket: 40T
- Total capacity: 45T
- Use: MTB, Trekking
- Group: ACERA M3000
- Model: RD-M3020-8
- Mount Type: Direct Mount
- Technology: Top Normal
- Gear: 7/8-speed
- Compatible Chain: HG 7/8-speed
- Max. teeth large sprocket: 40T
- Min. teeth large sprocket: 30T
- Max. teeth small sprocket: 12T
- Min. teeth small sprocket: 11T
- Max. Front Difference: 20T
- Total Capacity: 45T
- Type-SGS long
Scope of delivery
- 1 x Shimano ACERA RD-M3020 7/8-speed Rear Derailleur
SHIMANO’s double servo-panta mechanism enables the rear derailleur to move in an optimum path. The guide pulley tracks the cogs closely while moving front to back, optimizing each shift. Perfect tracking contributes to the most accurate SIS shifting. Keeps rear derailleur guide pulley an optimum distance from each sprocket. Keeps rear derailleur guide pulley an optimum distance from each sprocket.
Working super fine on my hero sprint howler
Good one ....!
I converted a cheap hybrid bicycle I bought for 12k to a 1X8 system using the RD-M3020 derailleur and the CS-HG400-8 cassette. I use this bicycle for my daily commute of around 12km since July, 2022. So far it has not missed a gear, not gone out of alignment. When coupled with Shimano SL-M315 8 speed shifter, the shifts are surprisingly smooth and precise.
My bicycle is a 700c bicycle with 28mm tyre. The crank is 38 teeth. On the highest gear it provides 92 gear inches for high speed riding and on the lowest gear 25 gear inches for climbing. It is not as fast as a road bike for high speed riding and not as good as an MTB for climbing. But it offers good compromise between them and excellent for city commuting.
The products are genuine and at lowest rates and delivery is prompt
Extremely precise and one of the best derailleur in the price segment for 7-8 speed freewheel or cassettes. Satisfied with the product and speedy delivery from cyclop.