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Patterson Metropolis drive

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Patterson Metropolis drive

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Old 10-09-15, 05:31 PM
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goldfinch
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Patterson Metropolis drive

Spouse has a terratrike rover with the Patterson Metropolis drive. He wants to move it to his Soma Saga upright bike. I can find instructions on installing the drive. on the Patterson site, but no instructions on how to remove it.

Anyone done this before? Advice? Thanks for any help you can give (as she exposes throat to alpha mechanics).
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Old 10-09-15, 05:46 PM
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Aren't the instructions basically reversible? Andy.
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Old 10-09-15, 06:04 PM
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I don't know. I suppose I could try. My experience is with square taper bottom brackets which of course is not simply reversible. So, maybe I am making unwarranted assumptions about some kind of trick to removing the drive.
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Old 10-09-15, 06:20 PM
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What? Many can reverse order the assembly steps of a number of bike parts and but for the tools be able to understand the steps. tapered square Bbs are removed and reinstalled every day in every bike shop so of course they're reversible. I think you might try harder.

From my superficial look at their web site there doesn't look to be any game changing stuff going on. Internal to the BB shell transmissions have been around for decades. Outside of proprietary tools and the need for some sort of rotation reaction force control, the fit to the shell is pretty common usually. Now not knowing the Soma's chain tensioning design I can't speak to that aspect of the reinstall. Andy.
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