the aprillia is ur best option if ur into ur bikes they can keep with most quick cars in a staight but they canbeat nearly anything round a bend i own 1 and have sat wit gsx-r 600s and the new 636 round coast roads but the only shit thing is u have to watch as they r easy to blow.i tested the dna at the nec this year its not to bad but wit no gears its just another scooter