Cyclocross - Catastrophic failure: help identify cause

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bdcheung
09-30-09, 07:57 AM
I was riding my CX bike to work this morning, riding it along the packed-dirt trail that parallels the asphalt MUP.

As I'm riding I hear a "thud thud thud thud thud thud BOOM" with the boom being my rear tire going flat.

here's what the tube looks like:
http://img12.yfrog.com/img12/3448/ydcu.jpg

Any idea what could have caused this?

Tires are 700x35 Maxxis Locusts. Wheels are Soul S4.0. Tubes are Bontrager 700x35-44c

flargle
09-30-09, 08:25 AM
First give me 15% off my Hammer order.
bdcheung
09-30-09, 08:26 AM
clink the link

MrRamonG
09-30-09, 08:26 AM
Looks like a faulty tube.
MrRamonG
09-30-09, 08:33 AM
Oh, and a flat tire is not a "Catastrophic failure". This is:
Saddle Up
09-30-09, 08:49 AM
I was riding my CX bike to work this morning, riding it along the packed-dirt trail that parallels the asphalt MUP.

As I'm riding I hear a "thud thud thud thud thud thud BOOM" with the boom being my rear tire going flat.

here's what the tube looks like:
http://img12.yfrog.com/img12/3448/ydcu.jpg

Any idea what could have caused this?

Tires are 700x35 Maxxis Locusts. Wheels are Soul S4.0. Tubes are Bontrager 700x35-44c

Wow I've never seen anything like that. A blown tube! Who would have thought? It's another of these JRA (just riding along) incidences that I've heard about.
goneflying
09-30-09, 08:51 AM
mayb someone doesnt like you?
bdcheung
09-30-09, 08:55 AM
Wow I've never seen anything like that. A blown tube! Who would have thought? It's another of these JRA (just riding along) incidences that I've heard about.

Feel better now?
jonestr
09-30-09, 09:07 AM
how does the bead of the tire look?

I have seen some Maxxis cross tires with some shoddy looking beads, and if the bead came off the rim a little bit that would explain the thumping and then when enough tube got through that would explain the tube blowing out
availpunk9
09-30-09, 09:12 AM
how does the bead of the tire look?

I have seen some Maxxis cross tires with some shoddy looking beads, and if the bead came off the rim a little bit that would explain the thumping and then when enough tube got through that would explain the tube blowing out

+1

I had that type of flat with my ritchey speedmax tires. The tire bead unseated and started to bulge to the side, thus the thud thud thud sound of the tire/tube hitting the frame. These tires were way loose on my rims; I could put them on with no effort with one thumb. Needless to say, I no longer ride these tires.
bdcheung
09-30-09, 09:30 AM
It may indeed be a tire issue. I'd been planning on putting mud2's on, guess I'll prioritize that now.
dirtyphotons
09-30-09, 09:50 AM
yeah, i've seen that before several times. always been the bead coming off the rim. sounds like a gunshot.