Motors, such as the Brose, are used for bikes with various wheel sizes. If we can simply "tell" the motor the bike we are on is using smaller wheels, it will allow a higher speed to be reached, before "cutting" out. The current top speed cut out, is way to low. Prior to riding an EMTB, it was easy, as an all mountain rider, to attain speeds 20-25mph on single tracks. EMTB's that are restricted are virtually unrideable, because of the weight consequences, unless all one is doing is using it to power uphills, then take a downhill run. And another thing-EMTB's, "hacked" or not, should be allowed everywhere MTB's are ridden. Studies have shown there is no difference to the trail surfaces.