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Joined 3 years ago
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Cake day: July 4th, 2023

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  • If you want a 3x8 drivetrain, you can maybe stay with your current derailleur and cassette. That’s gonna be cobbling some different bits together. But Acolyte is only compatible with Acolyte; this component line has a proprietary pull ratio and is explicitly designed to be 1x8. Depending on where you live, the 12-46T cassette might have enough gear range for your 11 year old. Gear range in this instance is “set” by crankset and chainring selection.

    In your case, and depending on how much patience you have left, I suggest you get the correct shifter (and a new rear derailleur cable + cable crimp). This is the shifter compatible with your derailleur and cassette: https://www.modernbike.com/microshift-acolyte-right-trigger-shifter---1x8-speed-acolyte-compatible-only

    From here, you could get a triple crank and front shifter. However, if you want 3x8, I strongly suggest that you don’t mix and match. The Microshift rear derailleur you have has a capacity of 37T. That 37T capacity is all in the cassette. Even a modest range triple crank might add another 20T to required capacity. Without overloading you on details, inexperienced riders tend have bad shifting habits that very potentially can destroy the derailleur and damage the bike if you add a triple crankset to this drivetrain. Triple cranksets tend to require long cage derailleurs or careful shifting.

    In general, for these contexts, I usually suggest Shimano CUES (https://bike.shimano.com/products/series/cues.html). It’s a component line designed to circumvent the compatibility morass that we see within a lot of component lines. You can also get a complete component group for something like $275.


  • Don’t. Trust. Amazon. This is the entry point into troubleshooting your current set of problems. The second shifters you posted have a 2:1 pull ratio. Microshift doesn’t say what their pull ratio is for Acolyte, but I’m quite sure it’s not 2:1. The first shifters are not explicitly Acolyte, and compatibility is not guaranteed even for same brand + cog count.

    If the derailleur can physically sweep the width of the cassette when the shift cable is disconnected, the shifter is incompatible with the derailleur. Mixing and matching shifters + derailleurs tends to be pro-level wrenching especially when indexing is used; friction shifting less so. You really need to understand compatibility when mixing up component lines, e.g. Acolyte, Sword, CUES.