Try the tried and tested analogue measuring wheel. I thought I'd spend a little more for additional features, but I can't use any of those instead. The thing measures a few meters and then returns to zero. When I press reset it stops. I just want to measure. Do some math and in turn save yourself some money and a lot of headaches. Unsurprisingly, Keson analog bikes come with a lifetime warranty, while Keson's more expensive e-bikes come with a two-year warranty. It makes no sense and it makes sense.
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