ericbe3

Building trails, bikes, and weird moto and electronics shit.

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ericbe3 mikekazimer's article
Nov 25, 2021 at 17:56
Nov 25, 2021
Opinion: How Many Batteries Does a Mountain Bike Really Need?
@MildMildWest: just took a look at SON, damn those are nice hubs. I'd expect to see hubs/generators of that efficiency at less than half the cost in about 5 years, some large electric motor manufacturers are already experimenting with AM processes to get that level of hand crafted precision (minimal air gap, more windings in the rotor, lower loss materials) at a fraction of the labor and material costs.
ericbe3 mikekazimer's article
Nov 25, 2021 at 13:50
Nov 25, 2021
Opinion: How Many Batteries Does a Mountain Bike Really Need?
@Tasso75: I'm going to guess most dynamo hubs use low pole count motors (or brushed DC, gross) at best a fairly inefficient power stage. There have been so many leaps in power electronics materials and industrialization over just the past 5 years, which is what's really fueling the ebike industry growth right now.
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