I've been riding my tri bike as I ease my way back into the land of those who can run/ride again. Unfortunately, I've had two flats that have really sidelined me.
I'm a TERRIBLE bike mechanic, and I wonder (with my 2nd flat) if it's just too complex for me.
The first was just this sudden onset, I heard a rumbling from the rear tire, and realized it was out. I didn't see any puncture on the tire, but I wasn't that far from my car (I'd hit several hard bumps). I got back to my car, and fixed it at home. That was a month or so ago. No problems on the rear.
The worst was today. The front tire. I went 10 out, and was 6.5 back when I heard a distinct "ka CHUNK, ka CHUNK" with the front tire's rotation. I stopped. I rolled the tire around when I noticed this HUGE pimple/bump looking thing on the tire, about a quarter/nickel's circumference (facing up to me as I rolled the tire). I was JUST putting my finger to touch it, when the thing, on its own, blew out with a BANG and scared the shizz outta me. One foot was still clipped in and I swear I thought I was still going to fall off the bike.
So I rolled the bike to the side, and tried to change the tire on the fly.
I first noticed that the tire itself was blown THROUGH the rubber. Ick.
I then pulled the inner tube (front tire, no big deal), and partially inflated the replacement tube. I thought I had worked it back in properly, but of course, for all I know, I pinched the inner tube.
Anyway, I then set out with my CO2 canisters, and tried to inflate the tube. I know the canister is only 120 psi (or less), and that's the tube's rating. Regardless, when I hit "inflate" on the canister, then THAT tire blew (right through the hole in the tire).
So, 3.5 miles later, I'm back at my car (don't ask). I ended up doing a shortish run of 4 miles after I got back to the car, just to work my nerves out.
I have to have this bike serviced anyway, and presumably, I can just buy two new tubes, but clearly I'll need at least one new tire.
Does anyone have any experience with the great exploding pimple?
Maybe I should just stick to swimming and running.
I'm a biking klutz.