Hi, I have just joined this forum. I own a 70cc HT 2-stroke mounted on a Merida Kalahari and another on a Giant Elwood with 700C wheels and a Grubee Huasheng 4-stroke mounted on a Schwinn Alloy Seven. The 4-stroke is my favourite by a wide margin but the Giant is very comfortable to ride with the larger wheels. I've built about 10 other motorised bikes for people and I also have a Schwinn Tango Tandem and a Mongoose NX7 hard tail MTB but they aren't motorised. I'm smitten with building a Staton NuVinci dual suspension and that will be my next project . Oh yes, I've wanted a Whizzer more than anything but can't afford it yet.