Would like to go faster!
- Thread starter Scott1234
- Start date
+1. me too
George S.
Well-Known Member
This is a RadRover, yes?
The RR has a watt meter. Watch the watt meter as you go up a fairly steep hill, pedaling as little as necessary. See what the power levels are, what the motor will do. Try to find the limit of the motor power in watts from the battery. Now ride on the flat and try to get the bike above 20 mph. Do you get the same watts (hopefully 5 or 600), or does the motor stop pulling the watts around 20 mph?
If you are getting a lot of watts, the motor is not big enough to go 25 mph. If the watts are being limited, you will get watts to keep you at 20, and no more. This is rough, not precise. If the speed is limited, you would need to change that. Legally, it's not something a manufacturer wants to mess with. Most states require the motor to 'cut out' at 20 mph.
This gets asked over and over again. It suggests a lot of people have 'outgrown' 20 miles per hour. You could talk to your state reps?
Waiting for delivery (hopefully as soon as next week) of my rad rover. I'll definitely try the low tech approach, cant wait to see what the motor + my legs will reach mph wise. Thanks.
Don't have bike yet but I'll try this when it shows up. Thanks. Based on motor and batt specs I was hoping to find a little more juice... probably won't mess with it til warranty is up anyway.
Update: motor does not cut out until 25 mph on my rover received 11/10. Max watt output +/- 800. Can hit 30 w/pedaling on just about any downhill strech...
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Scott1234
New Member
Fofer
Member
When using throttle only, RadRover's LCD and controller enforce a 20 MPH maximum from the motor. Rad Power set this deliberately to match the legal limit in most locations for use on road.
My Sondors eBike shipped with the same speed governor, but I was able to use it's KT-LCD3 to increase the max speed to 25 MPH.
I'm wondering now if the same sort of thing can be done on my RadRover? i.e Is there some secret combination of keypresses, in order to set it to ~25 MPH max instead?
My Sondors eBike shipped with the same speed governor, but I was able to use it's KT-LCD3 to increase the max speed to 25 MPH.
I'm wondering now if the same sort of thing can be done on my RadRover? i.e Is there some secret combination of keypresses, in order to set it to ~25 MPH max instead?
vincent713
Active Member
I assume you would set the speed limit to the highest setting on the LCD.
Scott1234
New Member
Yes.. 20mph
Fofer
Member
Christopher85083
Active Member
The power tapers quickly after 20 mph. By the time you approach 24.85 mph, the motor is contributing almost no additional power.
Fofer
Member
Sure, but at least that's due to the limits of the hardware (and physics) and not artificially limited by the speed governor in the controller.
Perhaps to make things faster then, you're looking at upgrading the bike's hardware: controller, motor, wheel, chains, tires, etc. And pedaling a whole lot faster
Perhaps to make things faster then, you're looking at upgrading the bike's hardware: controller, motor, wheel, chains, tires, etc. And pedaling a whole lot faster
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vincent713
Active Member
So max speed on the Radrover is 24mph?
Christopher85083
Active Member
Right, it is a hardware limitation to satisfy current laws regarding motorized bicycles.
Swapping controllers, displays, etc and making the bike faster than 20 mph would make the bike technically illegal to operate on bike paths, bike lanes, etc. Depends on your locale, of course, but here in AZ it's not really worth it for me. I commute with mine, and others have been issued tickets for exceeding regulations.
Swapping controllers, displays, etc and making the bike faster than 20 mph would make the bike technically illegal to operate on bike paths, bike lanes, etc. Depends on your locale, of course, but here in AZ it's not really worth it for me. I commute with mine, and others have been issued tickets for exceeding regulations.
Christopher85083
Active Member
Well, yes and no. It's a bicycle, so if you can pedal it to 30 mph, then that's your top speed. But the motor will contribute up to about 20 mph before the power starts to taper, and then power will stop contributing at 24.85 mph. There is nothing limiting you from exceeding that speed under your own power, and the motor will just contribute nothing until you drop back down below 24.85 mph.
Sam Jarawan
New Member
What about upgrading the battery to 52v could the controller handle it? Would you get much power increase or is the 4 extra volts negligible? Maybe a battery like this one: http://lunacycle.com
Thoughts?
Sam
Thoughts?
Sam
Christopher85083
Active Member
Can anybody identify where the speed is pulled from? Is the data pulled from the PAS sensors?
Christopher85083
Active Member
Speed. Not a RadRover, because they comply with the laws, but other brands/models can go faster than 20 mph and that has earned the attention of the police, especially near the colleges around here.
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