50 MPH E-TRIKE
Matt Shumaker used a KMX Typhoon tadpole trike modifiying it considerably, especially the frame, to create this powerful monster. There is no doubt about it … he achieved his goal in making a strong frame.
He lowered the frame 3/4 of an inch and also widened the frame 5 inches and lengthened it 3 inches to accommadate the motor and increase the handling of the trike. With two 15 hp (11,000 watt) motors powering it these modifications are a very good idea. Matt says it will accelerate from zero to forty in 4.5 seconds! That would indeed be exhilarating.
It sounds like a jet airplane going by. He says he has about $6,000 invested in it plus about 200 hours of time. He values it at about $9000. It is all wheel drive with motors for the front wheels and motors for the rear wheel. The trike does have pedals in case they are needed. The trike weighs about 90 pounds so pedaling it isn’t something one would want to do if they didn’t have to.
Matt reports that the range is about 35 – 45* miles on a charge which is a whole lot more than my 80 mile rated BionX battery gets. I am only getting about 20 miles using 80 % of a full charge on my BionX unit … not very impressive. Of course, this is a massive battery in comparison to what I have. (* one place I read 35 if it is babied and another place I read 45 with no remark about babying it.)
With all that power and speed it requires some hefty brakes. He used 203mm Hope 4 piston hydraulic brakes.
Matt reports that he sold this trike for $7500 with only one motor as he removed one.