Acolyte SpringLock Rear Derailleur for 1×8 Speed

The heart of the Acolyte derailleur is our innovative SpringLock system. By pairing a customized linear rate high tension spring and a dual stage activation mechanism, we’ve developed a system that can provide substantial chain security when you need it and can be turned off when you don’t.  To engage the clutch, turn the engagement bolt clockwise until it clicks. There’s no way to overtighten the bolt. To disengage the clutch for wheel removal, flip the switch. It’s that simple.

  • Innovative SpringLock chain retention keeps chain in place over rough terrain
  • Direct path cable routing for smooth and responsive shifting
  • Compatible with 12-42T and 12-46T 8-speed cassettes
  • Compatible with Acolyte shifters only

Technical Specifications

Model No.RD-M5185M
CompatibilitymicroSHIFT Acolyte Only
Cage LengthMedium Cage
Max. Sprocket42-46T
Chain Capacity41T
Clutch (Chain Stabilizer)Yes
AttachmentStandard Mount
Outer Link MaterialAluminum
Cage MaterialSteel


Instructions Manual

Acolyte 1x Rear Derailleur Installation

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