one of a kind ride

So called "2 hours" of cycling...
Ride to Hougang Neighbourhood Police Centre, SPC, Hougang Stadium, En-naeem Mosque, Kovan Mall, Serangoon JC, Polyclinic, Hougang Sports Complex, Yio Chu Kang Primary and Home... sound a lot rite??? But actually, i past by these places to and fro Kovan ONLY!! Muahahahax!!!!
Half way, my front tire lose air...blehh...
Then my pedal keep hitting the ground...
Somebody tell me is it my fault??
Because there is only 3 possibilities why this happened...
(A)when i turn, i turn and bend too low (something like that)
(B)the pedal is positioned too low
(C)there was a hump, when it occured....
I almost fly off my bike, almost skided, almost fell off my bike... can say i was riding hellishly (is there such word??) .

I'm all dressed up, going to watch Transformers with Siblings Only!!! Will be back to update!!