Choose A Fastest Folding Bike For Ebike Conversion? Dahon Matrix or Speed Pro/TT?

[lyen]

I am in the process of buying a folding bike to go to work. The current one I have is too slow & heavy. I need something fast in terms of speed & lightweight. I'm 170lbs & 37 years old. My current candidate would be either the Dahon Matrix or the Dahon Speed Pro & possibly the Speed Pro TT. Which one do you think is faster? Which one is more suitable to conversion? Both have aluminum frame. The matrix has 26" wheel @ 26lbs and the Speed Pro has 20" wheel @ 23lbs. Or are there any faster folding bikes? I will be putting the Phoenix motor from ElectricRider.com (X-Lyte 5303) and possibly using the 72V Cystalite 40A controller. Any suggestions if money is no object? :)

[Lowell_]

How fast do you want to go? Are you looking for top cruising speed, or acceleration, or a mix of both? A 5304/20" with 72V of lithium would make for a pretty good all around bike.

[lyen]

I'd like to go around up to 45mph or 72kph. I preferred a mix of both the cruising speed and acceleration since there is a lot of stop & go traffic in the city of San Francisco. The Crystalyte 5304 with 20" is probably the right choice but the maximum speed would probably be around 35mph. I know what I want sounds insane but I have simulate & test how it is like by going around the city traffic from home to work with my VW Beetle. I have purposely limited the maximum speed on my Beetle to run 45mph max from home to work on a 12 miles of distance run. It turns out the average speed is around 24mph with hills, turns, and traffic lights. So I hope you get my point on why I want something that can go up to 45mph although it will rarely happen anyways.

[The7]

I'd like to go around up to 45mph or 72kph.

Would like mine could do this as well !!

[Lowell_]

Ok, the 5304/20" with a 510mm diameter tire, will go 71km/h with about 87v at the controller. That's with an unfaired, upright mountain bike, dual crown fork and fat 24x2.5" front tire. I'm not sure if a small wheeled bent would have better or worse aero, but this combo would definitely put you in the ballpark for speed.
With a 25 cell lithium pack (92.5v) you would definitely get the speed you're looking for, plus a bit extra :)

[zoridog]

I am in the process of buying a folding bike to go to work. The current one I have is too slow & heavy. I need something fast in terms of speed & lightweight. I'm 170lbs & 37 years old. My current candidate would be either the Dahon Matrix or the Dahon Speed Pro & possibly the Speed Pro TT. Which one do you think is faster? Which one is more suitable to conversion? Both have aluminum frame. The matrix has 26" wheel @ 26lbs and the Speed Pro has 20" wheel @ 23lbs. Or are there any faster folding bikes? I will be putting the Phoenix motor from ElectricRider.com (X-Lyte 5303) and possibly using the 72V Cystalite 40A controller. Any suggestions if money is no object? :)
Let us know how the project turns out. I'm interested in the Phoenix on a folder myself.

[The7]

If you do really like to pedal occasionally, 26" wheel is better.

[Grun]

I'd like to go around up to 45mph or 72kph. I preferred a mix of both the cruising speed and acceleration since there is a lot of stop & go traffic in the city of San Francisco. The Crystalyte 5304 with 20" is probably the right choice but the maximum speed would probably be around 35mph. I know what I want sounds insane but I have simulate & test how it is like by going around the city traffic from home to work with my VW Beetle. I have purposely limited the maximum speed on my Beetle to run 45mph max from home to work on a 12 miles of distance run. It turns out the average speed is around 24mph with hills, turns, and traffic lights. So I hope you get my point on why I want something that can go up to 45mph although it will rarely happen anyways.

Is the folding hinge even safe at that speed?