I think the problem is, there's no accepted universal working definition of a motor bicycle. One guys motor bicycle is another guys motorcycle. Just having working pedals doesn't automatically make it a MB. Try to convince your local tax office otherwise.
There is no problem and you would know that was so if you had been
to one of the
SoCal Motor Bicycle Racing events.
There are 4 Motorized Bicycle Racing classes with the top limit
being 11.99 hp, working pedals, no shiftable motorcycle engines
and no motorcycle tires.
It's really simple and working so well that the class is growing quite
nicely and all the riders are having a blast.
The riders in this class have set the rules and will continue to do so.
They will not be competing against overpowered ebikes.
Forum racers like yourself will not be setting rules or limits on this class
or even any of the others.
There are 3 other racing classes for anyone who thinks that the 11 hp
class is over powered and ruining motorized bicycle racing....
There is a lot of room in the 50 cc 4 stroke class, low powered ebikes
and all other kinds of 30 mph or less bikes including friction drives, GEBE,
and whatever else you might come up with.
The Mid Range class includes 5 hp Morini's, 5 hp Briggs, 5 hp GC 160,
HF 99 cc, 138 cc Whizzers, Chonda automatic clones like BigBoyCycles
races and others.
Plenty of room for anyone without having to try and restrict what others
are racing.
Of course the 66 cc Chinese bicycle motor class is pretty full and very
competitive and will include an entry level class for new track racers and
stock bikes.
Personally, I really like ALL the classes and would like to race in any of
them in the future.
None of us that have been to the races gives a flying you know what
about what our
local tax office thinks about our racing motorized
bicycles!