glerwill wrote: ↑
Aug 28 2018 3:57am
Hi, I'm thinking of converting www.rieju.es/m/16/450/rs3-nkd-50
one of these from a non runner to electric in UK - as a motorcycle (not limited), using a hub motor for simplicity.
I know UK is pretty straight forward to get a one-off build registered as a 45 km/h moped. Changing that to an A1 or even A without any limitations I would imagine that would be a much tougher task, can't remember seing anyone in the UK done anything different then a moped 45km/h legal build here on the forum. There are a few threads about what it takes to get a build road legal here on the forum. Search function will go a long way. You might find that is cheaper to get bike registered as a A1 motorcycle. Those are limited to maximum output power of 11 kw continuous. Note that it is 11 kw continuous output power. A1 bikes are not speed limited. You can ride highways and toll roads no problems, and you will be able to keep up with traffic. That means you can have 30 or 40 kw peak output and still get it registered as a A1, which in turn should yield cheaper insurance etc over a fullblown motorcycle class A.
I would anyway start with a phone call to your local DMV and check with your local authorities what it will take to get the build road legal. As a one off you don't need a full road and crash test, so it should be manageable. In UK afaik there ain't even no requirements to have a third party inspection done by sertification companies like the TÜV. The cost for this process I have no clue, but your official DMV should be able to help you with that.
As for the build itself that motor will work well for street riding, even if it is heavy. Be sure to pair it with a controller that can deliver loads of amps. 600 amps at least. More is merrier, for rapid acceleration. For off road usage that motor might make the build a little tail heavy, but dirt road and fire roads should be ok without going full throttle. Also take it easy in corners in the beginning to you learn the limits of tractions, such a heavy motor in the rear wheel can give you a few surprises in the beginning.