madin88 wrote: ↑
Aug 05 2019 3:59am
Used gas bikes can be found for cheap yes thats for sure, but if you wanna convert one you certainly have to design and fabricate many customs parts like a mounting bracket for the motor, battery case, CNC parts etc. Build a battery, do the wiring (BMS) and everything.
Then there is the question: will it be robust enough so that i can do jumps without damaging the battery? Can i ride in rain with it?
So aside from the cost for the electrical parts alone there are many other costs and hours you need to count.
The main part that would need a little bit of machining is the motor mount. I have a CNC machine, so that would not be an issue. If someone needed a motor mount and did not know someone with a CNC machine or could not afford what must only be around $60 to have cut, one could manage making one from aluminum stock with a drill and jig saw or sawzall. Might not be as pretty as a CNC’d part - but could be just as functional. Anyhow - as far as custom parts go - it doesn’t get much simpler than making a motor mount.
Of course there other little parts needed, but most everything else can be adapted from off-the-shelve parts.
There exists technology to make DIY robust battery packs. To make it survive jumps, I don’t think you would need much more than internal cell spacers, spot welded nickel connectors and a bit of foam insulation. Of course, if I were building one, and I intended to jump it, I would seek advice from people who have built and jumped them first. If someone isn’t up to the task of researching and building a pack - it would not be very difficult to find someone with experience building packs to build one for you.
I understand the ASI controller is highly water-resistant, and it would not take a tremendous effort to make it even more water resistant and of course to use industry standard water-proof connectors.
Of course there are other costs and it would take one’s time to do a conversion. I never suggested otherwise.
Grantmac wrote: ↑
Aug 05 2019 11:58am
I think it likely you could rebuild the gas motor and fuel it, for cheaper than doing an e-conversion and replacing batteries as they wear.
I never suggested that it might be cheaper to rebuild an engine compared to an e-conversion. I only suggested that it could be substantially less expensive than buying a new KTM Freeride. And personally I have absolutely 0 interest in a IC motorbike, but I think it would be very fun and rewarding to do a conversion.
Folks: it was stated by a member that (a) there is “absolutely no reason anymore to build ebikes” and (b) “will never match the quality of the Sur-Ron”.
I simply don’t agree with either of those claims. There are plenty of good reasons why people are building ebikes, and if you start with something like a KTM, the build quality of the vehicle itself is much better than a Sur-Ron.
I really wasn’t trying to make any other points.