Originally Posted by Jim 'smooth' BrewerY'all have been arguin' about the rules so much you forgot to read them! Thunderbike would only be the start of the ruffled delicates. That little twin is already legal in every GP based class the MRA runs including all the way down to Colorado Class (aka Formula Boutique). It weighs roughly the same as Jeff Winter's RS450, and has a 1/3 more horsepower. There isn't a class in the MRA where a better nuclear weapon can't be developed armed with a money cannon. So why not try making a list of acceptable bikes for a new class with a perceived performance parity? If people don't like it, they won't show up, right? :-kOriginally Posted by snowblaze506