Bicycle Mechanics - Screw through Wheel base.
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08-25-11, 08:13 AM
I was lucky enough to take a screw through a tire, tube, and then through my wheel base. Enough to create a 3-4 millimeter hole. The hole is not visible because I have Aero Mavic Carbone wheels. There was no damage to the aero piece luckily because the screw went strait through and never touched.
I was hoping there would be no effect to the replacement tube and there was not for a day or so. Today though I woke up to a flat and I'm worried it is either the hole in my wheel rubbing or a tiny tiny hole where the screw went into my tire. The tire hole is very small and not really noticeable but, I'm sure some sand and particles can make there way through.
Today I am going to remove the tire and tube and see if I can tell where the flat came from.
Anyways, I'm wondering if there is some way to repair the wheel hole, tape, glue, etc.
08-25-11, 08:36 AM
New quality rim tape should take care of that. Did you replace the rim tape after the screw made a hole through everything???
08-25-11, 08:39 AM
Through the wheel base? Wheelbase is the distance between where the front and rear tire touch the ground.
If I knew the wheelset I could probably interpret your question better; but I'm going to have to assume you mean the screw pierced the internal wall in a double wall rim, but not the external wall.
Did said screw pierce the spoke bed part of the rim, or the sidewall? Sounds like the spoke bed, but in that case your rim tape would keep the tube from being affected. Or since I'm not familiar with this wheel, maybe this one does not have spoke holes and rim tape. In that case, just stick some medical tape over the hole. But I'd make sure it was de-burred above the surface first.
08-25-11, 08:51 AM
Sorry bout that. yes just the bed of the rim. luckily sidewalls were not touched. No I didn't replace the tape yet, because I had to do the repair on the road so I figured I would just leave it as is and see if it goes flat.
Cool I will try the tape out!
08-25-11, 06:10 PM
I had a similar experience a couple of years ago. I rode over a roofing nail and it went through the tire , both sides of the tube, the spoke bed of the rim and was sticking out slightly between two spokes on the outer wall of the rim (a Mavic CXP-33). Fortunately it went through between two spokes and didn't damage either. It was a ring shank nail and in so firmly I couldn't pull it out with the tools I had on the bike so it caused one of only two cell phone calls I've ever made to have my wife bail me out.
After I got it home and pulled the nail I removed the rim tape, filed the rough edges smooth, added new rim tape and sealed the hole in the outside surface with silicone to keep water out. A new tire and tube and the wheel is still in service a couple of years and many thousands of miles later.
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