Manny wrote:how was the ordering proces with QS motor. did you order it trough aliexpress.com ? shipping time?
I actually ordered via a friend in China who's organise shipping to his house and then chucking it in with a few other things I have coming by sea shipping. But ordering through aliexpress would otherwise be pretty straight forward from previous experiences
Scottydog wrote:Looks to be a sound project! What width can you run on the rear? I know the YZF125 has a 130 wide rear
Not sure yet! I haven't even checked the stock one but it's pretty skinny. I will go as wide as the swing arm will allow (it won't be huge away)
Interesting your choice in battery, did you have thoughts regarding the 18650 format?
I basically went with these cells because they came up super cheap. HK had a major sale on and it was around $1000 for the whole pack and available from the local warehouse with immediate shipping. Sorry to anyone else in the country who wanted one or 2
Hard to argue with that value!
jansevr wrote:Also I'm glad to see someone else with a 273 as I haven't heard much about it. 30-40kw peaks should be possible especially with some sort of cooling whether ferrofluid or air holes/scoops
Im going to try it sealed with FF first, then go down the air cooling route if needed. Given the sheer mass of this motor (22kg!) I think it'll sink a massive amount of heat. That and the fact that it'll only be drawing big power for a few seconds at a time should make it pretty comfortable.
What turn count motor/top speed are you expecting?
I'm not sure no the turn count actually. They quoted the winding as doing 100km/hr on 72v so with 100v plus field weakening I think around 140km/hr top speed is doable. It should certainly have plenty of sting in the 0-100 range and a whole heap of torque in the 20-80km/hr range which is right where I need it.
20kw should make for a fun ride with a bike weighing about 120lbs right?
Yeah should be a giggle. My power:weight max so far has been a 50kg bike with 14kw and it was a struggle to keep the front end from unexpectedly popping up.
John in CR wrote:If you pop a cover off please take a pic of the inside of the cover. That I my favorite of their covers, and I'd love to see the shape of the inside surface.
Sure, there's a million bolts but I'll probably yank the cover for curiosity. There's some awful cover designs out there but as you said this one is one of the more visually pleasing. Worst case I can matt black the lot.