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    do expensive sunglasses make any difference to cheap ones.

    Protection from UV and short wavelength blue light is important if you spend a lot of time outdoors or exposed to such. Long term exposure causes cataracts which is miserable as your vision deteriorates and every day becomes a foggy day (just one eye for me atm). cheap glasses dont offer good...
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    Lightweight rear hub kit

    I came into this with knowledge of mtb cross country racing from 1990s early 2000s. Bikes have changed! Had hardly ridden for 30+years since. I wanted assistance not a powered bike, after research, I decided I wanted a geared rear hub motor with PAS. It had to fit in with a particular full sized...
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    Lightweight rear hub kit

    No 27.5 =650b. 29 = 700c
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    Help! Torque arms

    On a front fork, one side is trying to push the clamp up, the other to pull it down. If I was running a front motor I’d have two torque arms for what those thin cheap jobs cost, one side pulling, other pushing.
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    How to measure bike chain (Cyclamatic Power Plus)

    Take your chain around the largest rear sprocket and your largest chainring without the deraillire, add one or two links, that’s your chain length.
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    spinning vs grinding for battery life

    On mine, it knows how much you are adding to the mix. You can see on the battery capacity display, the more work you do the longer the range. conventionally I have a cadence that I would try to maintain, on my conversion I use a higher gear and always look to have some resistance, I’m not just...
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    Folding lightweight multi-terrain e-bike for under £1000? Am I hoping for too much for my money?

    I really liked the Whoosh kits and that’s what what would have been my first choice and what I would have bought but sadly my choice of kit weren’t in stock and because of the time restrictions I had on completing the conversions I had to find an alternative . I also wanted the larger battery...
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    Change bikes

    The battery cradle is modified so it can be easily released from the bottle cage mounts to allow the bike to fold without fouling the integrated controller .
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    Change bikes

    So here it is the completed conversion using a Dillinger Off Road Kit. No throttle just PAS so that it can pass as road legal . The PAS is mounted on the RHS on small chain ring, magnets will hold it but there is a dab of epoxy to keep it in place. A bit of dremmel modification of the mag ring...
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    Folding lightweight multi-terrain e-bike for under £1000? Am I hoping for too much for my money?

    There is only one mountain bike folding frame to achieve ISO4210 certification, which is the ChangeBike. I wouldn’t ride the others on a gravel path let alone off road. It’s not electric though! Conversion is not straight forward but is doable and involves some compromise to the convenience of a...
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    Change bikes

    Thanks. Involves the same process of removing the cranks and BB shell as needed for a RHS mag ring
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    Change bikes

    Enlighten me as to method?
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    Change bikes

    PAS cant go on left, as the bike has Shimano Hollowtech cranks and BB, so magnet ring has to go on the small chainwheel. Rack mounts to seat post (actually to the tube below the seat post and there are mounting holes for the stays. The rack mounting is shown in accessories on the Change Bike...
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    Change bikes

    Exhuming this thread. Just attempting this atm on two Change Bike DF-812 folding hard tail mtbs. Dillinger Off Road kit 500w Rear Hub with 9 speed freewheel, fitting two torque arms, drive side PAS, no throttle The downtube battery cradle (without battery in it) stops the bike fully folding so...