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  1. B

    Best rear torque arm design/layout?

    Another update, got them cut out of 5mm steel for £15 a piece. Will need a bit of filing as I undersized the holes but looks great!
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    Best rear torque arm design/layout?

    Quick update to this. I've revised the caliper side arm to better match teklektik's recommendation. It's taken a few adjustments to get the hole to be a snug fit and align right but I think i'm pretty much there. Good idea on undercutting the axle and filing it down to be tight. I've bought a...
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    Best rear torque arm design/layout?

    Fusion 360, free yearly license to CAD enthusiasts. This is really interesting, i've never used carbon fibre as a material before. How easy is it to work with? I'm currently modifying my design to match teklektik's suggestion, although still I think it requires a much more accurate modelling...
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    Best rear torque arm design/layout?

    To beef up the dropouts on my ally frame, I've purchased a few off-the-shelf torque arms from ebay, but unfortunately the dropouts in my frame are shouldered in an unusual way and so all the ones i've tried (eyelet/jubilee clip) fail to line up in a good way. So i've gone the homebrew torque...
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    135mm Pasion Hub motor doesn't fit in 135mm dropouts

    Thanks dogman for clearing that up :) the frame I've got isn't a cheap one so I'd rather not bend it that much. They've offered me a 135mm freewheel hub motor for postage cost so I'll go for that and slap a 9 speed freewheel on. Leaves me with a cassette hub motor 145mm with Shimano cassette...
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    135mm Pasion Hub motor doesn't fit in 135mm dropouts

    It's not a free wheel motor it's a cassette and they do specify 9 speed cassette is ok
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    135mm Pasion Hub motor doesn't fit in 135mm dropouts

    Thank you for your response, I think it's been listed incorrectly as I have found identical-looking hubs on eBay listed as 145mm. Unfortunately the seller is refusing to admit they mis-sold me the product and claiming all cassette hub motors list 135mm but are 145mm and need stretching to fix...
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    135mm Pasion Hub motor doesn't fit in 135mm dropouts

    I've recently purchased a cassette hub motor kit from Pasion Ebikes. I carefully read all the technical documents before purchasing and they specified that the hub's axle was 135mm between flat points each side. Perfect, as I measured my dropout gap to be exactly 135mm. It's arrived and after...
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