GoldenMotor.com Forum

General Category => Magic Pie & Smart Pie Discussions => Topic started by: joejoe on January 04, 2013, 10:53:05 PM

Title: Top speed MP III with a 20 inch tire
Post by: joejoe on January 04, 2013, 10:53:05 PM

  I am apologizing in advance if this information is already published on this website;  just cannot find it.

Really like the MP III and want to install it on my A2B Metro with a new LiFePo4 battery pack like a 48V15Ah....

I know that  26 inch bikes were reaching 28 mph@48v. So is it simply the tire diameter conversion of 0.769 to figure out the speed for a 20 inch tire, or 21.5 mph?  If that's all I can get then I might as well stick with my old motor and just buy some new 36v batteries.

tia
Joe

Title: Re: Top speed MP III with a 20 inch tire
Post by: Morgen 3Eman on January 05, 2013, 06:01:23 AM

Hi Joejoe

I have built a three wheeler with a 20" 48V  MP3, and it does 24-25 MPH as measured by GPS.  The vehicle and I weigh over 400 lbs. 

TTFN,
Dennis