450's are gay, alot of people are faster on them cause of lower skill level, and they are so much easier to ride, so I get why people ride them makes them feel like a hero, lol.
They make people lazy and try to do things they shouldnt which is why we have more injuries now a days in my opinion, I have seen this locally around my area happen.
Sounds like you need a new mechanic Lineman, lol.