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Microshift Acolyte 8 Speed Rear Derailleur V2

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Microshift Acolyte 8 Speed Rear Derailleur V2

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Microshift Acolyte 8 Speed Rear Derailleur V2
RD-M5185M-B - $62.95
  • RD-M5185M-B - $62.95

DESCRIPTION

A 1×8‑speed medium‑cage rear derailleur featuring microSHIFT’s Spring Lock Clutch chain‑retention system for secure shifting on rough terrain. Compatible with 12–42T and 12–46T Acolyte cassettes and Acolyte shifters only. Ideal for MTB, trail, and youth performance bikes.



The microSHIFT Acolyte RD‑M5185M‑B Rear Derailleur is a robust, trail‑ready 1×8‑speed derailleur engineered for riders who want wide‑range gearing, simple setup, and reliable chain control. Built around microSHIFT’s innovative SpringLock chain‑retention system, this derailleur keeps the chain secure over rough terrain while maintaining smooth, responsive shifting.


The SpringLock mechanism uses a customized high‑tension spring and a dual‑stage activation system. When engaged, it provides exceptional chain stability; when disengaged, wheel removal becomes quick and easy. To activate the clutch, simply turn the engagement bolt clockwise until it clicks. To disengage, flip the switch—no tools required.


Designed specifically for the Acolyte 1×8 ecosystem, the RD‑M5185M‑B works with wide‑range 12–42T and 12–46T cassettes and Acolyte shifters only, making it an ideal upgrade for trail bikes, youth MTBs, and riders seeking simplicity without sacrificing performance.



  • Speed: 1×8‑speed

  • Cage Length: Medium

  • Chain Retention: SpringLock clutch system

  • Max Cassette Range: 12–42T and 12–46T compatible

  • Capacity: 37T

  • Shifter Compatibility: Acolyte shifters only

  • Cable Routing: Direct‑path for smooth, responsive shifting

  • Ideal for MTB, trail, and youth performance bikes


The RD‑M5185M‑B delivers the simplicity of an 8‑speed drivetrain with the chain security and performance normally found on higher‑end systems—perfect for riders who want durability, control, and value.


SHIPPING & RETURN

DELIVERY
  • Dispatch: Within 24 Hours
  • Free shipping across all products on a minimum purchase of $100.
  • International delivery time - 7-10 business days
  • Cash on delivery might be available
  • Easy 30 days returns and exchanges
RETURNS

If you do not like the product you can return it within 15 days - no questions asked. This excludes bodysuits, swimwear and clearance sale items. We have an easy and hassle free return policy. Please look at our Delivery & Returns section for further information.

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