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Old 11-24-18, 06:24 PM
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MikeyMK
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Join Date: Jul 2014
Location: Milton Keynes, England
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Bikes: 2.6kw GT LTS e-tandem, 250w Voodoo, 250w solar recumbent trike, 3-speed shopper, Merlin ol/skl mtb, 80cc Ellswick

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Originally Posted by pitchpole View Post
Im curious where you got this idea. I have been running a rear hub motor just fine on 700C tires and my city has some really bad road surfaces in spots. I think this depends on how much you weigh...
I weigh 66kgs, and use a full rear hub motor, which is heavy to the tune of 9kgs - not the little thing with a pair of chordless battery motors in it. It also depends on battery weight (almost 200 cells weighing a further 10kgs) and i'm not talking about rough surfaces, i'm talking about taking a 90 lb bike over kerbs, bricks, tree roots, stairs...

So at this level one has a whole spectrum of duty to consider, and a 700C tyre is gonna be suitable only for the lightest of duties from my perspective.
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