I think you could also keep the following sections: 1 - definitions, 2 - racing, 3 - rights and duties of bicyclists generally, 3G - can't carry stuff such that no hands available for bars, 3H.d - don't have to signal when needing hands for bike, 3J - police bikes
Further, 3I would be good with a change from a skid requirement to "the operator must be able to bring the bicycle to a full stop from 15 mph in 30 feet on clean, dry, level, pavement" would be good.
Massachusetts bike law is pretty sensible:
http://www.massbike.org/bikelaw/