devo1223
100 W
Does this motor really have a kv of 11 or is the rpm on the graph after the belt reduction?
View attachment Testing report qs1000.pdf
View attachment Testing report qs1000.pdf
devo1223 said:seems pretty happy with 8:1 reduction at 60v. I'll report more once I stop the 219 chain from constantly falling off. Currently at 3500w no problempic 5 (600 x 450).jpg
Centurio said:Guys! It semms there is an issue with the sprockets.
QS sold me last year the 1000W motor and claimed to be shipped with 420 sprcket. So I ordered a chainring and a matching 420 chain, just to find out the sprcket is not 420. It's indeed made for a 428 chain. 428 motorcycle chain on 1000W motor!??
Because there is this special axle I am not able to find a sprocket manufactor to finally get a 420 sprocket. I asekd Judy from QS motor to get a 420 sprocket. She told me they are waiting for production. This is now 6 weeks ago. Still no production. Does anyone has a source of this sprocket? Judy sent me the drawing.
Centurio said:Yeah, I was thinking about an adapter too. But would the axle not be to large to fit the "standard" front sprockets?
I can do that, but the hole in the sprocket must be tapered.larsb said:It’s a bad idea for long term. Bolt the sprocket you want to the outside of the sprocket that fits, if needed cut it down with an angle grinder. 1 hour job at the most
larsb said:just make the hole oversize and buy a hubless sprocket, they are called platewheels or sprocket type A