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Tire Tube Replacement Questions

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Tire Tube Replacement Questions

Old 04-19-24, 03:13 PM
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Originally Posted by smd4
How is it possible to get scratches on the outside of the rim, so far away from the hole, when using round files to smooth the hole?
Trying to smooth the edge requires going in at an oblique angle to the hole. You can't just run the file parallel to the bore. Thanks for your critique. I'm not perfect. The file might have slipped. How do you think it happened?

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Old 04-19-24, 03:49 PM
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Originally Posted by RoadWearier
Trying to smooth the edge requires going in at an oblique angle to the hole. You can't just run the file parallel to the bore. Thanks for your critique. I'm not perfect. The file might have slipped. How do you think it happened?
How do I know? Why do you think I asked?
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Old 04-19-24, 04:56 PM
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Try using some sandpaper maybe, or some scotchbrite. Iíd go with like 100 or 200 grit
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Old 04-19-24, 05:07 PM
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Originally Posted by smd4
How do I know? Why do you think I asked?
Pretty obvious to anyone with half a brain. I messed up. Happy?
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Old 04-19-24, 05:33 PM
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I've ridden tubes with Presta valves in a Schrader drilled rim on occasion. I don't think it's a big problem. But you people can argue about anything so have at it.
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Old 04-19-24, 06:46 PM
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Originally Posted by Joe Bikerider
I've ridden tubes with Presta valves in a Schrader drilled rim on occasion. I don't think it's a big problem. But you people can argue about anything so have at it.
This is definitely true. Actually I went to the LBS and asked for those Presta Valve "savers" so I could make the hole smaller. He asked me, "Why don't you just stick with Schrader valves?". Suggested strapping tape to guard the valve stems. I didn't want to bring up this monkey house of a forum. But I think I'm going to try that first. The rear stem isn't quite as bad but it is definitely cutting into the stem too. Probably tape alone will do the trick. I think the files were probably overkill. And I agree...may run the rest of enraging the hole or making it oval.
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Old 04-19-24, 08:30 PM
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Originally Posted by RoadWearier
This is definitely true. Actually I went to the LBS and asked for those Presta Valve "savers" so I could make the hole smaller. He asked me, "Why don't you just stick with Schrader valves?". Suggested strapping tape to guard the valve stems. I didn't want to bring up this monkey house of a forum. But I think I'm going to try that first. The rear stem isn't quite as bad but it is definitely cutting into the stem too. Probably tape alone will do the trick. I think the files were probably overkill. And I agree...may run the rest of enraging the hole or making it oval.
Tubes with metal schrader valves would also work.

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Old 04-20-24, 05:34 AM
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Contitubes are my #1 go to tubes
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Old 04-20-24, 05:49 AM
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If you cleaned up the hole with a file and/or sandpaper, you should be good to go with schraeder valves. Note that if itís a particularly narrow rim, the wider valve can get in the way of the tire bead seating properly.
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Old 04-20-24, 06:29 AM
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This doesn't need to be difficult. Schrader to Presta
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Old 04-20-24, 08:26 AM
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Originally Posted by bboy314
If you cleaned up the hole with a file and/or sandpaper, you should be good to go with schraeder valves. Note that if itís a particularly narrow rim, the wider valve can get in the way of the tire bead seating properly.
Hadn't thought of that. Fortunately this is a hybrid bike with wide rims. But I see how that could happen.
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