All Q100 versions performance values can be seen @ the Ebike CA sim.
Use MXUS FXO7 for 201
Use Outrider stand. for 260
And of course,
Q100 328 for 328.
I find the no-load values to be very accurate, although some riders see higher numbers.
201 in 26" on 48V - 21 mph(33.5 Kph)
260 in 26" on 48V - 24 mph(38.5 Kph)
328 in 26" on 48V - 24.5 mph(39 Kph)
But more importantly than top speeds, the sim, shows the problem w/ the 328 in a big wheel.
Observe the power curve in this combo. Top speed is limited by power(15 A controller), not rpm like the other two motors. This means the 328 does not reach it's best efficiency zone. Also, this situation trys to pull max. Amps from the controller almost all the time, causing it to overheat. That is why we recommend the 328 in a big whl. for only the fittest of riders with no serious hills to climb.
So what motor?
For 95% of riders the best all around single motor Cute application is the 260H @ 48V, but there is a roadblock that almost all of us Q100 users face. The 260 is not available in a Cst
Work-around to this problem;
1)201 CST @ higher Volts than 48V
2)328 CST in 24" or smaller wheel
3)260H in frt. whl.
5)260 H rear w/ DNP free wheel
6)Q128CST, 328@48 V version, same motor speed range as 260 @ 36 V
I have used 1 thru 5 options, and #4 is best
and #3 is second best.
FWD is very nice in low-power systems(less than 800 Watts and it can be very stealthy as well.
I would take #3 over #5 for assist biased build, but for power build, DNP free wheel is not that bad.