MICROSHIFT Acolyte Springlock rear derailleur

The heart of the microSHIFT Acolyte derailleur is the innovative SpringLock system. By combining a high tension spring with a tailored linear spring curve and a two-stage activation mechanism, microSHIFT has developed a system that secures the chain when necessary and can be deactivated if necessary. The super short cage version has a cage small enough to fit on a bike with 20″ wheels. With the same Springlock chain retention and sturdy metal construction as the full-size Acolyte, you can ride Super Shorts as hard as you want, no matter your size. Specifications: - Speeds: 8 - Clevis length: Medium or super short - Materials: Aluminum clevis and outer link - Sprocket Max.: 42-46T / 38T - Capacity: 41T / 27T - Clutch: Yes - Compatibility: Advent 8 speed (incompatible with Shimano or Sram) - Weight: 384 g / 150 g