wah.
as long as u dun ride too fast i think blowouts wont be a huge
hazard.. ive yet to encounter a blowout yet, but yeah, just in
case.
hmm, if u hit the edge of the drain really hard, there might be
a chance uve dented the rim flange on impact..
its best to get it to a bike shop asap to see if they can beat
it back in shape or u needa get a new one
u cycle, u hit the drain, ur tyre kena
kendrick cycle, he/she hit the drain, the drain kena 
