Rear derailleur. Speed: 7-8. The SHIMANO Acera RD-M3020-8 rear derailleur ensures smooth gear changes in all situations, whether on or off the road. The long cage supports sprockets up to 40 teeth, which gives you a large gear range even with double-speed drives. Even in rough terrain, the gearshifts are precise and smooth thanks to the dual servo technology. This mechanism ensures that the rear derailleur moves in an optimal path, and the guide pulley is positioned evenly in relation to the pinion in all gear steps – for uninterrupted shifting and undiluted riding pleasure.
- 7/8 speed rear derailleur for MTB/trekking bikes
- Dual servo technology for smooth gear changes
- Direct mounting on conventional derailleur hangers
- Top Normal (designed for Rapidfire levers)
- Tension adjuster directly on the rear derailleur
- Fluorine-coated joint bushing
- Gear steps front: double/triple
- Gear steps rear: 7/8-speed
- Cage: Long Cage (SGS)
- Pulley wheels: 11 teeth
- Max. sprocket size: 30-40 teeth
- Min. sprocket size: 11-12 teeth
- Total capacity: 45 teeth
- Max. difference at the front: 20 teeth
- Compatible chains: SHIMANO 6/7/8-speed HG
