Dynamo can"t stand getting his wheels dirty. Sure he"s a speedster on the track, but he is afraid to really get in there and mix it up with Speedway, Burnout and Slipstream in tight quarters. He claims this is because his delicate frame is easily crushed during spectacular collisions. On the other hand, the last time he scraped up his pretty paint job you could hear the shouting and yelling miles away. Approx. 2"