Top speeds: 48v VS 72v

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Redheadjj
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Last seen: 1 year 2 weeks ago
Joined: Friday, June 5, 2009 - 14:27
Points: 5
Top speeds: 48v VS 72v

Given the extra batteries needed, extra weight, and increase wind resistance, how much increase in top speed can be gained using a 72v. Crystalyte 5303 versus 48v. ? If everything else is the same: my weight, bike frame, tires, etc. )

antiscab
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Last seen: 1 month 3 days ago
Joined: Saturday, July 7, 2007 - 23:55
Points: 1686
Re: Top speeds: 48v VS 72v

in a permanent magnet system (with no current limit) speed is linear to voltage.

so going from 48v to 72v increases speed by 50%.

Matt

Daily Ride:
2007 Vectrix, modified with 42 x Thundersky 60Ah in July 2010. Done 194'000km

Mick46
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Last seen: 7 years 6 months ago
Joined: Friday, June 26, 2009 - 01:57
Points: 55
Re: Top speeds: 48v VS 72v

Yes. I will second the notion that it should increase
the speed by 50% but is usually not the case. It all depends on
constant amps/watts coming out as well. Of course you must measure under
controlled conditions.

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