no clue i bought it and rode it, is that why i feel like i am standing on top of the quad, and thats probly why it bikes up so easy, the first time i took it to the mx track i flipped it in 4th wfo and put me in the hospitle for 3 days, had internal bleeding lasheration on the liver and hematoma on so other glands or something. you now doc mubo jumbo stuff. i was just asking whe the f do i get out of here.