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  1. #1
    What??? Only 2 wheels? jimmuller's Avatar
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    Why we keep tires pumped up

    I got home from work early enough this evening that I could take a bike out for a spin. It beats going to the gym. Of course it was still rush hour so I took the UO8 because it has lights.

    I got in 10.02 miles, timed it so I'd get home before dusk. Unfortunately I had one minor problem. With the sun in my eyes as I approached an entrance ramp to a big highway I hit a pothole really hard. The tire didn't flat (thanks to 105psi, a reason to keep them pumped up!) but it put a flat spot in the rim. Bummer. Ruined a perfectly fine MA2. Oh well, I guess I'll be building a wheel soon.

    On Sunday I fly to London. The wheel will have to keep. But I won't be able to commute on the UO8 when I return home until I've had time to rebuild the wheel.
    Real cyclists use toe clips.
    jimmuller

  2. #2
    WNG
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    Spin Forest! Spin! WNG's Avatar
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    DOH! Sorry about you mishap. I can relate. Yesterday I discovered while fixing a troublesome flat on my mtb, I discovered a hairline crack around a nipple hole of my rear Mavic rim. (what's with Mavic rims?)

    Not sure how that happened, I did take a few spills and I rode it very hard the last time trying to not hold up two riders following. It's astounding how fast one can go over big bumps and loose dirt! Bummer for sure, I'm going to chance a few more rides before replacing it. I'm questioning whether my wheel truing had anything at fault...too much tension perhaps?

    Have a safe trip Jim!
    “You meet the nicest people on two wheels!"
    "Learn from yesterday, live for today, hope for tomorrow." ~Albert Einstein

  3. #3
    Senior Member Grand Bois's Avatar
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    Why won't you be able to commute on the UO8? A flat spotted rim and a tire that still holds air shouldn't keep you from riding it.

  4. #4
    Senior Member Peugeotlover's Avatar
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    Quote Originally Posted by Grand Bois View Post
    Why won't you be able to commute on the UO8? A flat spotted rim and a tire that still holds air shouldn't keep you from riding it.
    That's what I was gonna say.
    Just check the tire carefully for damage.
    Don't worry, be happy...
    '72 Peugeot PX-10; '74 Raleigh International; '87 Specialized RockHopper; '88 Specialized StumpJumper; '02 Cannondale Scalpel; FreeSpirit Elite

  5. #5
    What??? Only 2 wheels? jimmuller's Avatar
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    Quote Originally Posted by Grand Bois View Post
    Why won't you be able to commute on the UO8? A flat spotted rim and a tire that still holds air shouldn't keep you from riding it.
    Well, I'm not sure (bump!) about braking bu(bump!)t it sure isn't plea(bump!)sant to ride with all (bump!) the bumping. (bump!)
    Real cyclists use toe clips.
    jimmuller

  6. #6
    Freewheel Medic pastorbobnlnh's Avatar
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    Quote Originally Posted by jimmuller View Post
    Well, I'm not sure (bump!) about braking bu(bump!)t it sure isn't plea(bump!)sant to ride with all (bump!) the bumping. (bump!)
    And I can imagine every time it bumps your beard flips up into your eyes and that could be worse than the sun in you eyes. At least it is not on the tandem and you are flipping Sharon off the rear with every bump! BTW, does she get to go to London too?
    Bob
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  7. #7
    Senior Member JJScaliger's Avatar
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    I would buy a used back up set of wheels and rebuild the wheel later so you can keep riding! Used wheels are usually cheaper than a new rim and spokes.

    Or... just ride one of your other bikes to work (maybe Bertin?) until you build up wheel.
    De Rosa nuovo classico Cinelli supercorsa Kelly knobby x Gitane interclub Dawes galaxy

  8. #8
    26 tpi nut. sailorbenjamin's Avatar
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    I did a similar thing on the Huffy Daisy (big pos tandem) about a month ago. The wheel was fine but I bent the handlebars, pedal and fork. I was pretty sore, too for a couple of days.
    I have spoken.

  9. #9
    What??? Only 2 wheels? jimmuller's Avatar
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    Quote Originally Posted by pastorbobnlnh View Post
    BTW, does she get to go to London too?
    Alas, no.

    Quote Originally Posted by JJScaliger View Post
    Or... just ride one of your other bikes to work (maybe Bertin?) until you build up wheel.
    Not the Bertin, the Bianchi I rode when we did the Bedford-to-Nashua ride back in November. Or the Centurion Ironman. But none of my other bikes have the lights of the UO8.

    Quote Originally Posted by sailorbenjamin View Post
    I did a similar thing on the Huffy Daisy ... I was pretty sore, too for a couple of days.
    My prostate is fine, thank you. I was not riding a Unicanitor saddle.
    Real cyclists use toe clips.
    jimmuller

  10. #10
    26 tpi nut. sailorbenjamin's Avatar
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    Ooh. I hadn't thought about that.
    I have spoken.

  11. #11
    What??? Only 2 wheels? jimmuller's Avatar
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    For clarification's sake, I should explain that it wasn't just dings in the outer edge of the rim, the sort that clips the top edge of the brake pads. The entire rim, inner spoke-mounting surface and all, is deformed, with a few spokes feeling a bit loose. I can't imagine how the tube escaped without snake-bite holes, but it did. I may have an appropriate M13-II I can use. That would match the front!
    Last edited by jimmuller; 03-15-14 at 07:26 AM.
    Real cyclists use toe clips.
    jimmuller

  12. #12
    Senior Member zukahn1's Avatar
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    Ok is there a reason you just can't take a spoke wrench turn a couple spokes and be fine.

  13. #13
    Senior Member Lascauxcaveman's Avatar
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    Quote Originally Posted by jimmuller View Post
    For clarification's sake, I should explain that it wasn't just dings in the outer edge of the rim, the sort that clips the top edge of the brake pads.

    Pfft! Who ever bothers to use both their brakes anyway? Ya still got at least ONE good one, right?
    ● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1972 Peugeot UE-18 Mixte ● 1982 Motobecane Jubile Sport ● 1983 Nishiki Landau ● 1984 Peugeot PH10LE ● 1984 Bianchi Limited ● 1985 Peugeot Vagabond ● 1985 Trek 600 ● 1985 Shogun Prairie Breaker ● 1985 Raleigh Elkhorn ● 1986 Univega Nuovo Sport ● 1987 Schwinn Tempo ● 1996 Kona Lava Dome ● And a Bike to Be Named Later ●

  14. #14
    What??? Only 2 wheels? jimmuller's Avatar
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    Quote Originally Posted by zukahn1 View Post
    Ok is there a reason you just can't take a spoke wrench turn a couple spokes and be fine.
    I've never seen spokes which could push a rim outward. But there's a first time for everything, right?
    Real cyclists use toe clips.
    jimmuller

  15. #15
    Freewheel Medic pastorbobnlnh's Avatar
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    If you had only been riding a Peter White built wheel none of this conversation would ever be occurring.

    Too bad Sharon can't join you. Must have something to do with the new job. That's a nice travel benefit on top of the really shortened new commute.

    Jim, you must be living exceptionally well!
    Bob
    Dreaming of Summertime in NH!

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  16. #16
    Have bike, will travel Barrettscv's Avatar
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    Pot holes are epic here this year. I'm riding my winter beater with 700x38 tires for a few more weeks. The good bikes will stay safe.
    When I ride my bike I feel free and happy and strong. Liberated from the usual nonsense of day to day life. Solid dependable silent, my bike is my horse my fighter jet my island my friend. Together we will conquer that hill and thereafter the world.

  17. #17
    Senior Member Road Fan's Avatar
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    Quote Originally Posted by zukahn1 View Post
    Ok is there a reason you just can't take a spoke wrench turn a couple spokes and be fine.
    With a big dent and high pressure, there's added risk of a blowout.

  18. #18
    What??? Only 2 wheels? jimmuller's Avatar
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    Quote Originally Posted by pastorbobnlnh View Post
    If you had only been riding a Peter White built wheel none of this conversation would ever be occurring.
    ...
    Jim, you must be living exceptionally well!
    Thank you, Bob. I am indeed feeling the benefit of way less job-related stress.

    As for the wheels, that rear was one someone built for me decades ago. He knows what he is doing and I don't blame his build. On the other hand, the front wheel, an M13-II on a Shimano 600 hub, was the first wheel I ever built. I've ridden it maybe 1500 miles, and it survived that bump just fine, is still straight as an arrow. These are 27" (630x18) rims, BTW, getting harder to find. I happen to have another 630 M13-II w/36 holes that I used on another bike. I'd de-strung it because its braking surface at the joint was too uneven for smooth braking at speed. However on a commuter it should be fine. The ERD for the two rims are 319 and 318, so I can probably re-string it without spending any money!

    Speaking of Peter White, IIRC his website recommends 2.0-1.7-2.0mm spokes. Have any of you ever built a wheel with them?
    Real cyclists use toe clips.
    jimmuller

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