when I 180 (biking) help?

[K2 Snowboarding]

my leg allways hits my seat and it hurts after a while real bad any suggestions.....(and i just broke my bike again no its not a walmart bike its a haro x0 and pretty much i broke my bike off a 5 stair and got it fixed my tire blew out and ahh its gay so my tire is compety ripped and and got a new tire so i got it back to day and i was 180 flat and not it looks like my rim is bent but i thiink its my tube its like rubbing against my brake and the frame

 

[R1D3R]

Try to make sure that you are centred over your bike when you spin

 

[Paul M]

haro x0 is not much better than a walmart bike. no offense. but, lower your seat, put lots of air in your tires, and avoid stay centered on the bike whilst spinning.