Shimano Acera RD-3020-8-SGS 7/8-speed Bicycle Rear Derailleur (Long Cage)

Shimano RDM30208SGS Shift Derailleur for 7 or 8 Speed ​​Bike

New transmission gearshift rear box adaptable for mountain bike, hybrid bike, road, racing...
The rear derailleur is attached to the bicycle frame. It moves sideways to guide the chain over the rear wheel cassette to change cogs. This spring mechanism also maintains a constant chain tension so as not to derail.

Technical characteristics and dimensions of the 7V-8V cassette derailleur

• Brand: Shimano
• Model: Acera RD M3020 8 SGS
• Materials: steel and plastic
• Colors: black and gray
• Clevis type (roller support cage): long
• Gear shift control: by cable (mechanical)
• Maximum number of teeth of the largest cassette cog: 40 (40)
• Mass: 285 grams
• Fixing thread diameter (direct fixing, conventional): 10 mm (delivered without frame bracket)
• Smooth and precise shifting performance, wide range of capabilities
• Derailleur compatible with 7 or 8-speed road drivetrains

Shimano is a Japanese brand founded in 1921, specializing in the manufacture of bicycle parts and components. It is also a world leader in bicycle equipment (derailleurs, pedals, wheels, cassettes, etc.). Shimano is a world-renowned brand, it equips a large part of the professional peloton and sponsors many cycling teams.