General Category > eBike Mods/Legalization

Limits with MP3

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Garm@n:
Just curious how the commercial 16" wheel base ebikes runs faster then my GM_MP3 16" bike.  I've been riding around in my ebike and can't seem to go faster then 20km/h with my bike, but I'm running 36v, but presume that running on 48v get's me about 26km/h.  So what is emmo/daymak doing to get their bikes running at 32+ km/h on the same wheel size and heavier setup?  Is there any mods I can perform to bring up the speed?

MelbourneRider:
Have you tried to re-program it?

here is a link for the settings from a previous thread:

http://goldenmotor.com/SMF/index.php?topic=4602.msg26553#msg26553

You can download the software from here:

http://www.goldenmotor.ca/pages/Downloads.html

But, you will need to have the USB programming cable

Garm@n:
I have the cable and software.  Also I have looked into what Gary configured, but I don't think it does not apply to me as his example is based on a 26" wheel and I have a 16" wheel.

Morgen 3Eman:
Hi Garmin,

Just for another data point, I'm using a 20" MP3 on 48VDC, and my Garmin says I top out at 25 MPH!  (Sorry Officer, it's only supposed to do 24mph):)

TTFN,
Dennis

MelbourneRider:
Gary was running 17 Amp continuous and 45 Amp max at 48 volt. That equals to 816 Watts continuous and over 2 KW max power. The speed was 32 KMH. He mentioned the total rolling weight was 450 to 500lbs. The wheels are 26 x 2.35.

I am assuming that your battery is the GM's 36 volt battery with 20 Amp continuous and 35 Amp discharge. A similar settings (48v changed to 36v) should give you 612 Watts continuous and 1.6 KW max power.

I think, that should be enough to give you over 25 km/h even on 16 inch wheels and say half the rolling weight

I would change the settings to go 20A continuous. That should give it a bit more oomph!

you can give it a shot :)

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