Reduced effect

In some countries certain motorcycle models are sold with less horse power to comply with legal or insurance regulations in that country. For instance, a country might allow 16-year-olds to drive 125 ccm bikes with no more than 15 hp. The bike would then have to be modified to output no more than 15 hp. In another example insurance companies may not want to insure bikes with more than 100 hp, or may increase insurance rates for these bikes to the extent that most people would want to buy a reduced-effect version of their bike instead.