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Ever seen a tire shredded like this?

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Ever seen a tire shredded like this?

Old 09-20-18, 11:10 AM
  #1  
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Ever seen a tire shredded like this?



I finally took the front wheel off my bike as it needed truing from the crash 5 weeks ago. Iím still a long ways from being able to ride but the bike needs some maintenance.

I was really surprised to see the sidewall completely shredded. In fact the sidewall was torn all the way through the tire. I knew I hit the asphalt hard as evidenced by my broken hip but I was surprised to see that much damage. I thought Iíd hit and bounced but obviously I slid more that I thought. No wonder I had a good bit of road rash.

There is also some scuffing at the top of the brake tracks but I donít think it will affect overall performance. I didnít see any cracks in the carbon rim but I guess time will tell if there are any structural issues.

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Old 09-20-18, 11:59 AM
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My Guess

You rode it under inflated.
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Old 09-20-18, 12:25 PM
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How did your bike get back after your crash?
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Old 09-20-18, 01:30 PM
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Originally Posted by Retro Grouch View Post
How did your bike get back after your crash?
Retro-one of our bike club members was just up the road in his pickup truck. He was going to take some video of us as we rode by. He heard their was a crash and was onsite in minutes. They put my bike in the bed of his pickup and helped me get in the cab. He was so nice, I was bleeding pretty good and in a good bit of pain but he made a point telling me to know worry about blood getting on his upholstery. Another stranger also stopped in his car and offered to take me to the hospital but our buddy showed up right afterwards.

My my van was at the starting point of the ride so we stopped by there and put the bike and all my bike gear in my van which was most helpful to not have all that at the hospital. I was also able to get my wallet and medical insurance cards from my van. The hospital was just a few minutes away and my wife was waiting on me at the entrance to the ER when we arrived. She and my son shuttled my van back to the house around midnight that night.

Logistically it couldnít have worked out any better. I was not going to leave my bike out there!!!!
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Old 09-20-18, 07:14 PM
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Well I hope you’re making a quick & pain free recovery.

As for that tire & how it got that way: is there any possibility that the brake was rubbing the sidewall for a time prior to the crash? Also did the tire blow out and this was the cause of the crash?
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Old 09-20-18, 07:40 PM
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Originally Posted by fietsbob View Post
You rode it under inflated.
my first thought as well.
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Old 09-20-18, 08:30 PM
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Is that just one patch, or is it like that all the way around?

Is the wheel true? Ahh, slightly out of true, but hard to tell if that would be before or after the wreck.

My first reaction was riding underinflated/flat as @fietsbob suggested. That would also account for some of the damage to the rim. However, I can't account for the asymmetry, or the apparent localized effect.

Perhaps some more details of the crash?

I'm thinking perhaps a hard corner (descent), and the front wheel just slid out from under you (essentially a skid on the sidewall). Or, perhaps hitting a curb hard??? I.E. your front tire took the same road rash that your body took.
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Old 09-21-18, 05:02 AM
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Originally Posted by masi61 View Post
Well I hope you’re making a quick & pain free recovery.

As for that tire & how it got that way: is there any possibility that the brake was rubbing the sidewall for a time prior to the crash? Also did the tire blow out and this was the cause of the crash?
Originally Posted by CliffordK View Post
Is that just one patch, or is it like that all the way around?

Is the wheel true? Ahh, slightly out of true, but hard to tell if that would be before or after the wreck.

My first reaction was riding underinflated/flat as @fietsbob suggested. That would also account for some of the damage to the rim. However, I can't account for the asymmetry, or the apparent localized effect.

Perhaps some more details of the crash?

I'm thinking perhaps a hard corner (descent), and the front wheel just slid out from under you (essentially a skid on the sidewall). Or, perhaps hitting a curb hard??? I.E. your front tire took the same road rash that your body took.
The sidewall shredding does give the appearance that it was under inflated but I don’t think that was the case. It is a 23 mm tire and I was running 100 psi of pressure. The brake pads were aligned correctly on the rim brake tracks so that shouldn’t have been an issue. I was riding with a group and hit some large rocks that had washed out into the road from a gravel driveway. I never saw them. The bike went airborne and then flipped sideways to my right while I was up in the air. I landed really hard on my right hip and the bike and I slid a ways. The sidewall shredding must have happened as I was sliding across the asphalt.

I later learned that the fella riding behind me ran over my front wheel. I suspect the weight of him on the front wheel contributed to pushing down on the front wheel while we were sliding thus all the sidewall damage. Fortunately he was able to stay upright.

Recovery is ongoing but seems to be tracking okay. The fall broke my right hip and I had a total hip replacement the next day. I’m hoping the surgeon will give me the go ahead to get on a stationary bike soon.

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Last edited by jppe; 09-21-18 at 05:05 AM.
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Old 09-21-18, 05:27 AM
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Ok, so road rash it is. That must have been some wicked crash.

Did you get some damage on the back side of the fork crown?

That looks like a very neat carbon fiber rim. Hopefully it can be salvaged.
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Old 09-21-18, 07:04 AM
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Originally Posted by CliffordK View Post
Ok, so road rash it is. That must have been some wicked crash.

Did you get some damage on the back side of the fork crown?

That looks like a very neat carbon fiber rim. Hopefully it can be salvaged.
No scuffs to the frame or fork that I can find. Just some tears to the bar tape. I guess between my body and the handlebars it kept the frame and fork from getting beat up?? These wheels are direct from China and I've put over 25,000 miles on them with zero issues. They are light and sturdy. As long as the rim is not damaged any more than the scuffs, I think there is plenty of room in the brake track to align the brake pads so they''re not running over top of those marks. I wouldn't be surprised to find a spoke or two in a weakened state given what they went through but we'll see.
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Old 09-21-18, 08:46 AM
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Originally Posted by jppe View Post

Retro-one of our bike club members was just up the road in his pickup truck. He was going to take some video of us as we rode by. He heard their was a crash and was onsite in minutes. They put my bike in the bed of his pickup and helped me get in the cab. He was so nice, I was bleeding pretty good and in a good bit of pain but he made a point telling me to know worry about blood getting on his upholstery. Another stranger also stopped in his car and offered to take me to the hospital but our buddy showed up right afterwards.

My my van was at the starting point of the ride so we stopped by there and put the bike and all my bike gear in my van which was most helpful to not have all that at the hospital. I was also able to get my wallet and medical insurance cards from my van. The hospital was just a few minutes away and my wife was waiting on me at the entrance to the ER when we arrived. She and my son shuttled my van back to the house around midnight that night.

Logistically it couldnít have worked out any better. I was not going to leave my bike out there!!!!
What I was really wondering is if the tire had scraped on the ground while being transporting on an external bike rack of some kind. It sounds like all the transportation was in a van or back of a pick up so that's obviously not it.
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Old 09-21-18, 02:29 PM
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That was a nasty crash! Glad you were able to get to the hospital quickly and that you received good care. I hope everything heals well and soon.

I guess it's one of the disadvantages of visiting this forum as infrequently as I do now that I was not aware this had happened.
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Old 09-21-18, 02:46 PM
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Well, if you hit something hard enough to flat the tires, that would explain the underinflation. Looks like it dug in enough to scrape the rim. I've had Conti sidewalls start shredding with just a brush of the curb.
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Old 09-21-18, 05:03 PM
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Brand new Gatorskins and good brakes. Oh, with a touch of sore ribs to boot. They are not bullet proof.
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Old 09-21-18, 05:30 PM
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Originally Posted by curbtender View Post
Well, if you hit something hard enough to flat the tires, that would explain the underinflation. Looks like it dug in enough to scrape the rim. I've had Conti sidewalls start shredding with just a brush of the curb.
I was gonna say that ... Contis are kinda notorious for weaker sidewalls. I've never seen that kind of damage, though.
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Old 09-22-18, 06:33 AM
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Originally Posted by BluesDawg View Post
That was a nasty crash! Glad you were able to get to the hospital quickly and that you received good care. I hope everything heals well and soon.

I guess it's one of the disadvantages of visiting this forum as infrequently as I do now that I was not aware this had happened.
If you're interested here's a link to the details of the injury but the pictures tell the story:

From an EPIC Ride to an EPIC Fall and a broken hip.....
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Old 09-22-18, 09:09 PM
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Originally Posted by jppe View Post
If you're interested here's a link to the details of the injury but the pictures tell the story:

From an EPIC Ride to an EPIC Fall and a broken hip.....
Ugh! Wishes for good healing to you, brother.
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Old 09-23-18, 05:29 AM
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Horizontal dropouts and the wheel shifted to allow the tire to rub the chainstay?
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Old 09-23-18, 08:41 AM
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Being in the tire business (auto/lt. truck)..

Yep. the first pics are of a tire run underinflated/overloaded
The second is a classic brake induced flat spot.

Since anti-lock brakes and TPMS systems became common, that has cut the tires I see with those conditions by over, I would estimate, 90%

It still happens.. had both happen this week in fact.
First one.. guy had an ABS sensor fail, somone pulled out of a fast food joint in front of him, he flat-spotted a six month old tire.. brought it in for "warranty" with tread rubber smeared away from divot in the direction of the skid.. "I can't lock the brakes up, it's ABS!" "If the warning light is on, the system is locked out, sir."

Second.. tire with both sidewalls run to destruction. "Was the TPMS light on?" "Yeah." "How long was it on?" "Two, three days.."
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Old 09-23-18, 07:26 PM
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Sorry about your crash. Sometimes you just can't avoid stuff. Hope your recovery goes well.
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