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The heart of the microSHIFT Acolyte RD-M5185M-B SpringLock Rear Derailleur is the innovative SpringLock system.
The heart of the microSHIFT Acolyte RD-M5185M-B SpringLock Rear Derailleur is the innovative SpringLock system.
Microshift

microSHIFT Acolyte RD-M5185M-B SpringLock 8spd Medium Cage Rear Derailleur in Black

$36.99
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Preorder

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritized (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or dispatch to you — it often never even hits the stock room shelves!

Prelaunch

With Prelaunch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Preorders.

So, instead, you can submit your email address for the item you are interested in, and we will email you as soon as stock arrives in the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indicative purposes only and can change at any time without notice.

The dates we provide are based on information given by our suppliers. Whenever we get updated information from our suppliers we will endeavor to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for dispatch to you or collection via Click & Collect on Undetermined

microSHIFT Acolyte RD-M5185M-B SpringLock 8spd Medium Cage Rear Derailleur in Black

Season:2025

Brand:Microshift

Code:RD0178

The heart of the microSHIFT Acolyte RD-M5185M-B SpringLock Rear Derailleur is the innovative SpringLock system.

By pairing a customized linear rate high tension spring and a dual stage activation mechanism, microSHIFT has 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.

Features:

  • 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
  • Ver.2 cage provides better chain wrap and retention
  • Compatible with Acolyte shifters only
Technical Information
  • Group
    Acolyte
  • Speed
    8-Speed
  • Cage length
    Medium cage
  • Max cog
    42-46T
  • Capacity
    37T
  • Clutch
    Yes
  • Cage material
    Steel
  • Outer link material
    Aluminum
  • Compatibility
    Acolyte
Sizing Information
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