Motor-Assisted Bicycle Question?

Mary R

Can anyone out there tell me if they know of a motor-assisted bicycle (brand name and model) that would fit the following requirements;

* is fitted with pedals that are operable at all times to propel the bicycle;
* weighs not more than 121 lbs. (55 kilograms);
* has no hand or foot operated clutch or gearbox driven by the motor and transferring power to the driven wheel;
* has a piston displacement of not more that 20 cubic inches (50 cubic centimetres); and,
* does not attain a speed greater than 31 mph (50 km/hr) on level ground within a distance of 1.24 Miles (2 km) from a standing start.

Thank you in advance to anyone who can give me an answer.

Answer
My dad used to have something like this (they're called mopeds and are rare, haveing been superseeded by the motor scooter). It had a 1 cylinder 2 stroke air cooled engine with a centrafugal clutch and IV (Infinately Variable) gearbox (effectively a simple automatic gearbox).

You won't find anything like that that doesn't need a lot of TLC to keep it going though.

Far more common nowadays are electrically assisted bikes (using an electric motor and batteries).

What is riding one of the electric power assist bicycles like?

Q. The only thing I've heard is that they even out hills a little. What else have you heard? Are they worth the high price?

Answer
You can buy a nice shop quality bike for the same price as a cheap electric bike. You will benefit from the exercise and be a lot healthier. Don't expect the batteries to last long on the cheap bikes so you end up with a 70 lb bicycle or ending up pedaling harder then a regular bike. Expect to buy a new battery pack every 6 months or so.

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