Honda Motorcycle Owner's Manual page 16

Do not pull a trailer or sidecar with your
motorcycle. This motorcycle was not designed
for these attachments, and their use can
seriously impair your motorcycle's handling.
8
Modifications
We strongly advise you not to remove any
original equipment or modify your motorcycle
in any way that would change its design or
operation. Such changes could seriously impair
your motorcycle's handling, stability and
braking, making it unsafe to ride.
Removing or modifying your lights, mufflers,
emission control system or other equipment
can also make your motorcycle illegal.