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How to re-assemble the spring of a twist gear shifter

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How to re-assemble the spring of a twist gear shifter

Old 08-24-22, 06:47 AM
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How to re-assemble the spring of a twist gear shifter

I have a cheap grip shift that wasn't moving so I took it apart to see what is wrong.

When I disassembled it the spring (picture below) fell on the ground so I don't know how it should lay inside the gear shift.

The model is microSHIFT M25-6.


And here is a picture of the spring:


The thing is that in some youtube videos I looked at for some help the spring had a u-turn and mine is straight.

If anyone can help me with it, it would be very helpful.
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Old 08-24-22, 07:27 AM
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It's seldom worthwhile trying to fix those. If it stopped working and it's not because of a cable or derailleur issue, the shifter is probably toast. As you have seen, they're very simple. Since you're obviously a tinkerer, try putting the spring back in both possible combinations. You'll see the slot it goes into, and the plastic teeth it's supposed to engage. Put another 15 minutes into it then give up.

I've never taken apart a Microshift, but that spring looks suspiciously "flat" compared to others.
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Old 08-24-22, 08:45 AM
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You say that spring in the videos made a u-turn and yours does not. I'm guessing you mean it had a hooked end of some sort. It may have broken off and that's why your shifter isn't going together and working.

These things are 11 - 14 bucks online for both left and right shifters together. A tad less if you look for just the one.
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Old 08-24-22, 09:02 AM
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I tried to disassemble and reassemble a Shimano twist shifter.


I bought a new one.
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Old 08-24-22, 09:29 AM
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I consider twist shifters "consumables", I actually keep a set of 3 X 7 and 3 X 8 twist shifters and an 8 speed Tourney RD on hand because at least once a year somebody brings their old box store MTB or hybrid to me because it won't shift any more. My own twist shift bikes got switched to trigger shifters a long time ago.
".....distasteful and easily triggered."
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Old 08-24-22, 09:30 AM
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Like others have said, I tried to fix a malfunctioning twist shifter, and the most effective fix was to buy new shifters. I went with Microshift trigger shifters, they're much more responsive, cleaner shifts, and they were $19. That's cheaper than the couple hours I wasted mucking about with the crappy twist shifters.
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