Bendejo
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- Rhode Island
My buddy and my stark varg mx’s.
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Supermoto Starks
- Thread starter Bendejo
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DaveAusNor
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Got some Haan wheels in black and gold. Hoping i can get some black plastics eventually. Mine gets about 1% battery per kilometer at 50-90km per hour speeds on my daily commute and get home with 50%. On dirt I can ride it to the track, doing a bunch of training laps over a few hours then ride it home with 20-30% battery to spare. So no range anxiety for me which is nice.
DaveAusNor
Well-known member
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I modified it myself by looping out on some wheelies at the MX track. I just drilled some holes and screwed the bracket into whats remaining of the lip under the tail light
Wattsthematter
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Just got my EX and mounted my supermoto 17” wheel setup and currently am running 15t front sprocket and 45t rear sprocket but my power train is cutting power at 83mph and you can feel it hit a brick wall and just kill the power it still has plenty of to keep acceleratin. I’ve seen plenty of videos where Vargs are hitting 103-107mph in plenty of YouTube videos on stock dirt wheels and tires. I was wanting to obviously find a way to remove this limitation and get a higher speed out of the bike somehow. I can’t get an answer from Stark or my local dealer about this what so ever. Anyone have any experience with this issue?
The EX is limited in top speed at 136km/h or 83ish mph. The MX isn't. (something to do with getting it road legal?)
The speed is measured at the motor rotation, not gps or wheel speed.
So when running 15/45 (same as I do) the speedo will give you lower speeds than you do irl. But when it hits 83mph on the screen it will indeed cut off, but you will be going fasther than 83mph with that gearing.
As far as I know there is no real solution to this.
The speed is measured at the motor rotation, not gps or wheel speed.
So when running 15/45 (same as I do) the speedo will give you lower speeds than you do irl. But when it hits 83mph on the screen it will indeed cut off, but you will be going fasther than 83mph with that gearing.
As far as I know there is no real solution to this.
Hola!
I calculated the speed for the EX from the motor RPM to the wheel- circumference.
It turns out that the the EX is not "limited" in a special way.
With 136km/h the electric motor is at its max RPM.
Some sources say 13900, others say 14000 RPM.
The gearing from the motor to the real wheel is:
Prim: 21/68 = 0,309
Chain: 12/44 = 0,273 (Changed from original 12/48 to compensate smaller wheel)
Sum: 0,309 x 0,273 = 0,0842
14000 RPM x 0,0842 = 1179 RPM Wheelspin
Circumference rear wheel: 1,922mm (On my 17" SuMo)
1179 1/min * 1,922m = 2266m/min = 136km/h speed over ground
With your 15/45 the real speed over ground is 170km/h - while the speedometer still shows 136km/h.
Things have already been discussed here
There is no REAL solution as the motor is limited to 14000 RPM except changing the gears.
Use brongles app for third party phones as central unit.
SVAG APP
you can recalibrate your speedometer and then see the real speed over ground.
Bernardo
I calculated the speed for the EX from the motor RPM to the wheel- circumference.
It turns out that the the EX is not "limited" in a special way.
With 136km/h the electric motor is at its max RPM.
Some sources say 13900, others say 14000 RPM.
The gearing from the motor to the real wheel is:
Prim: 21/68 = 0,309
Chain: 12/44 = 0,273 (Changed from original 12/48 to compensate smaller wheel)
Sum: 0,309 x 0,273 = 0,0842
14000 RPM x 0,0842 = 1179 RPM Wheelspin
Circumference rear wheel: 1,922mm (On my 17" SuMo)
1179 1/min * 1,922m = 2266m/min = 136km/h speed over ground
With your 15/45 the real speed over ground is 170km/h - while the speedometer still shows 136km/h.
Things have already been discussed here
There is no REAL solution as the motor is limited to 14000 RPM except changing the gears.
Use brongles app for third party phones as central unit.
SVAG APP
you can recalibrate your speedometer and then see the real speed over ground.
Bernardo
Hi Bernardo.
Than it is still weird that the MX1.0 version gets way higher topspeeds on the same gearing, or what am I seeing wrong here?
Or does the EX uses another motor than the MX1.0, would that be the reason? Strange that it would make that much of a difference.
Best regard,
Proxxon.
Than it is still weird that the MX1.0 version gets way higher topspeeds on the same gearing, or what am I seeing wrong here?
Or does the EX uses another motor than the MX1.0, would that be the reason? Strange that it would make that much of a difference.
Best regard,
Proxxon.
Hola!
We have to take a look at the whole drivetrain.
At the MX everything is the same but the gear ratio.
The EX has the "slower" gears with 1036Nm at 14/48
The MX has the "faster" gears" with 978Nm at 14/47
and very likely other primary gears than the ex (also different order numbers for the motor)
the ratio of 1036/978 is 1,06. And as Power ~ M x n and the Power is the same at both bikes...
so... with the same rearwheel the Mx would be 1,06 faster than the Ex
lets say that is 136km/h x 1,06 = 144km/h
In all youtube top-speed-vids the speed is shown on GPS gadgets
or speedometer of another vehicle.
The speed on the phone must not exeed the speed related to the motor-RPM
because its calculated from.
The real speed over ground can be much higher - depending on the gears.
B.
We have to take a look at the whole drivetrain.
At the MX everything is the same but the gear ratio.
The EX has the "slower" gears with 1036Nm at 14/48
The MX has the "faster" gears" with 978Nm at 14/47
and very likely other primary gears than the ex (also different order numbers for the motor)
the ratio of 1036/978 is 1,06. And as Power ~ M x n and the Power is the same at both bikes...
so... with the same rearwheel the Mx would be 1,06 faster than the Ex
lets say that is 136km/h x 1,06 = 144km/h
In all youtube top-speed-vids the speed is shown on GPS gadgets
or speedometer of another vehicle.
The speed on the phone must not exeed the speed related to the motor-RPM
because its calculated from.
The real speed over ground can be much higher - depending on the gears.
B.
