I just setup a rear direct drive system from ebikes.ca and I was hoping that someone could help me with trying to get a faster top speed.
I got a all-in-one kit from Grin that includes a 9c rh212 motor (standard 8.5 winding), a 52v 20mah battery(40a continues) with a baserunner (with 45-50a continues) and the ca3 cycle analyst. I have it on a hard tail mountain bike and i get right at 28-29mph top speed on the flats (crouch down using full throttle). I only commute to work using 300-500w of PSA but i'm needing the ability to use the throttle for very small sections of the commute (keep up with traffic) and would really like to get it close to 35mph. It seems that at 28mph while using full throttle the motor uses less watts and just maintains that speed of 28-29. I have looked in the software suite for the baserunner controller (it just uses the phaserunner suite) and noticed that the max power limit for the motor is set to 1200w and the max battery current is set to 30a. If i increased the max power limit to 1750w and max battery current to 35a, would that increase my top speed? and will it hurt anything doing that? Do i need to use the top speed overdrive feature (field weakening)? I didn't know if having the 8.5 winding on the motor limited my rpm or something. Even on slight downhills i get about the same. I live in central Florida so there are almost no hills to speak of.
I know these are beginner questions but you have to start somewhere right? :wink:
Thanks for any info you can give.
I got a all-in-one kit from Grin that includes a 9c rh212 motor (standard 8.5 winding), a 52v 20mah battery(40a continues) with a baserunner (with 45-50a continues) and the ca3 cycle analyst. I have it on a hard tail mountain bike and i get right at 28-29mph top speed on the flats (crouch down using full throttle). I only commute to work using 300-500w of PSA but i'm needing the ability to use the throttle for very small sections of the commute (keep up with traffic) and would really like to get it close to 35mph. It seems that at 28mph while using full throttle the motor uses less watts and just maintains that speed of 28-29. I have looked in the software suite for the baserunner controller (it just uses the phaserunner suite) and noticed that the max power limit for the motor is set to 1200w and the max battery current is set to 30a. If i increased the max power limit to 1750w and max battery current to 35a, would that increase my top speed? and will it hurt anything doing that? Do i need to use the top speed overdrive feature (field weakening)? I didn't know if having the 8.5 winding on the motor limited my rpm or something. Even on slight downhills i get about the same. I live in central Florida so there are almost no hills to speak of.
I know these are beginner questions but you have to start somewhere right? :wink:
Thanks for any info you can give.