Motor controller and display

[Curtech]

I've got a X056-AXD001 controller w/ a LCD-M6C display. The controller is compatible with 48V nominal bikes and the display says that it can be programmed to limit the top speed to 100k/h (60mph). I've done some reading and it seems like the top speed for a 48V bike with a 750W motor is about 32mph (flat ground). I'm currently topping out at about 23mph. There's 26 different settings accessible through this LCD-M6C display, and I'll list them below. I'm curious if anyone else has a setup like this and/or knows how to adjust the top end speed. Right now, I've mucked about with things and I get all or nothing and the P20-26 must have the value 255 or I get no throttle response.

P01 - Display backlight level
P02 - kph/mph display readout
P03 - 24/36/48/60V mode
P04 - autoshutoff time (5 minutes, etc)
P05 - PAS mode 0:3 (file mode?) or 1:5 (gear mode?) -- Not sure what this does. Pedal assist setting, but, making changes doesn't seem to do anything.
P06 - While size (16 inches, 20 inches, etc)
P07 - Number of magnets for the speed sensor (1-15)
P08 - Speed limit (10-41kph) -- Doesn't seem to do anything
P09 - Zero vs non-zero start?
P10 - Power drive?
P11 - Help sensitivity?
P12 - Help intensity?
P13 - Power magnetic still disk type?
P14 - Controller amps limit (1-22)
P15 - Controller undervoltage?
P16 - Odometer reset
P17 - Cruise control
P18 - Speed ratio (50-150%) -- I think this is a spedomoeter adjustment, like if you have oversize/undersize tires.
P19 - Zero PAS (0 or 1)?
P20 - Protocol?
P21 - Unknown
P22 - Unknown
P23 - Unknown
P24 - Unknown
P25 - Unknown
P26 - Unknown

 

[indianajo]

I have found 10 winding 1000 w 48 v geared hubs top out on the flat at ~25 mph. A 12 winding 48 v geared hub topped out on the flat about 22 mph. My bike has a slightly forwards seating position. Your results may vary. The 750 w motor I bought burned out on the first trip to my summer camp, so I never tried the top speed.
Note the amps of the controller will affect top speed if too low. 10 A controllers would fault out on motors capable of 1000 watts. 25 amp controller would burn the winding on a 350 w motor if run up hills.

 

[Slaphappygamer]

Looking at the P08 speed limit, 41 kmph is equal to 25mph. With you on the bike, 23mph seems normal. 41kmph speed limit is probably the resellers firmware limit and you can not change it.