The funny thing is, after experiencing the effortless delights of Motorcycles at a very early age, I could never get addicted to "Push Bikes".... :o...!
The first thing I did to one of my first Push Bikes was to fit an engine to it...never looked back since!...;)...>>>
The Vincent "Firefly". 49cc two-stroke. Roller Drive to the rear wheel.
http://www.andybuysbikes.com/Archive/3477.htmhttp://www.users.globalnet.co.uk/~pattl ... rc0303.htm....an excellent add-on device to reduce the possibility of a Cyclist's heart attack...Trust me...

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Now, on my Motor Bikes, its press a button, feet up, and away to go....Total Joy...

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Paul...

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..and still on two wheels....no problems with "Traffic Jams"... [smiley=thumbsup.gif]...!
...and if you are an Aircraft enthusiast, Motor-Bikin' is the nearest you will get to flying a "Sopwith Camel"...

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Win 8.1 64-bit. DX11. Advent Tower. Intel i7-3770 3.9 GHz 8-core. 8 GB System RAM. AMD Radeon HD 7700 1GB RAM. DVD ROM. 2 Terra Byte SATA Hard Drive. Philips 17" LCD Monitor. Saitek Cyborg X Fly-5 Joystick. ...and a Briggs and Stratton Petrol Lawn Mower.