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  1. #1
    A Fin j0nshaw's Avatar
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    Blown rear tire. Now what?

    Hi everyone- I was riding back home today, at 9 PM, when a tire decided to go out. I was going nearly 25 mph on the downhill, and had to use both the front and the rear brakes to stop quickly. Fronts did their job, as did the rears. However, the rears locked up, and lo and behold, a loud "BOOM", with a bit of smoke, and a lot of turbulence. Lucky nothing worse happened. I was in the middle lane too, about to take a hard left turn like i do every day.


    I thought it was just an inner tube problem, but nope. The tread is completely gone, and so I'm taking a good guess that the tire is also gone.

    Do i:
    1. Replace both the front and the rear tires together?

    2. Replace just the rear tire?

    3. Replace the wheels w/ the tires? (upgrade- upgrade? )

    4. Other suggestion?

    Where at? I'm afraid of going to UC cyclery. Looks like they charge a pretty penny. There's the UCSD bike shop, but i've found their products to be a bit shabby unless you clearly indicate that you want otherwise (ie specific brand, etc.).

    Cheers, and hoping to be back on the 'cross by Wednesday for work/classes.

    Jonathan
    From Akron, Ohio ->Temple City, CA ->La Jolla, CA

    1) Fantom CX in MatteGray
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  2. #2
    Senior Member dddave's Avatar
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    just replace the rear. if the front needs replacing then do it.

  3. #3
    Dagger Boy Extort's Avatar
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    after buying one tire to get you back on the road start buying stuff online because the prices are much nicer... but you have to wait for shipping.
    Women think they're so clever because they can fake an orgasm for the sake of a relationship, but men can fake a whole relationship for the sake of an orgasm.

  4. #4
    Senior Member thomson's Avatar
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    Jonathan, try not to use the rear brake so hard. If it goes into a skid, you are braking too hard. Not only will it ruin a tire quickly but your stopping distance is increased.

  5. #5
    Member btom's Avatar
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    Always upgrade dubs when you get the chance, finances permitting. If low on cash, buy same tire and place on front, demote front tire to rear.

  6. #6
    Queen of France Indolent58's Avatar
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    To prevent locking up the rear wheel in the future you need Campagnolo Differential Skeleton Brakes that feature a dual pivot brake in the front for stopping power and a single pivot brake on the rear for easy modulation of braking power.



    Of course, neither the Campy brakes nor Shimano brifters have a quick release so you have to pair them with Campy Ergo shifters. This in turn requires Campy derailleurs and cassette for compatibility reasons.



    So getting back to wheels, yes, you will need ones with a compatible freehub.



    Hmm. I just noticed that you have a cyclocross frame. In order to use the short reach road brakes you will need a regular road frame.



    Once you do all of this, I suggest that in the future you buy tires online from PBK. It will save you a lot of money over the LBS.

  7. #7
    Senior Member dddave's Avatar
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    ^ ha!

  8. #8
    A Fin j0nshaw's Avatar
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    Quote Originally Posted by thomson View Post
    Jonathan, try not to use the rear brake so hard. If it goes into a skid, you are braking too hard. Not only will it ruin a tire quickly but your stopping distance is increased.
    Yes sir! *salutes*

    Quote Originally Posted by Indolent58 View Post
    To prevent locking up the rear wheel in the future you need Campagnolo Differential Skeleton Brakes that feature a dual pivot brake in the front for stopping power and a single pivot brake on the rear for easy modulation of braking power.

    Of course, neither the Campy brakes nor Shimano brifters have a quick release so you have to pair them with Campy Ergo shifters. This in turn requires Campy derailleurs and cassette for compatibility reasons.

    So getting back to wheels, yes, you will need ones with a compatible freehub.

    Hmm. I just noticed that you have a cyclocross frame. In order to use the short reach road brakes you will need a regular road frame.

    Once you do all of this, I suggest that in the future you buy tires online from PBK. It will save you a lot of money over the LBS.
    Wow-- what a post! I'm not good at estimates, but I'm guessing all that will cost as much/more than what my bike is worth . In the end there, you said I'll need a regular road frame. So...that means I should just start from scratch and build up a road bike I'm guessing? I think I should go vulture out a frame to start such a build--

    Not sure if the LBS would have 'cross tires, but here's hoping.

    Thanks for all the input again. Always helping out when I hit a snag in cycling. Keeps me motivated to continue riding-

    -Jonathan
    From Akron, Ohio ->Temple City, CA ->La Jolla, CA

    1) Fantom CX in MatteGray
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  9. #9
    A Fin j0nshaw's Avatar
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    Woah hey. What do you all think about REI? I have a membership there, but haven't gone since the winter season. There's one right off the 52 between convoy and the 805 (for the SD'rs). Maybe a visit there first? :x
    From Akron, Ohio ->Temple City, CA ->La Jolla, CA

    1) Fantom CX in MatteGray
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  10. #10
    Dagger Boy Extort's Avatar
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    or go online to see if they have them in stock...... that way you are not driving all the way there for nothing.
    Women think they're so clever because they can fake an orgasm for the sake of a relationship, but men can fake a whole relationship for the sake of an orgasm.

  11. #11
    Senior Member
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    REI normally sell things at MSRP, which will be the same as UCC. They do have tires in stock though.

    Why not pick it up from Performance Bikes? Sorrento Valley or one near Convoy/Clairemont Mesa, which normally has some sales going that make them below MSRP.

    PBK is about 5 days.

  12. #12
    Senior Member dddave's Avatar
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    performance, ftw. i'm going there for some new gatorskinz today.

  13. #13
    A Fin j0nshaw's Avatar
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    Thanks for the suggestion to go to performance bike. I got two of their house brand 700 x 28c tires for around $11 a piece. They're road tires, but i figured I haven't been going off road much lately anyways.

    Quote Originally Posted by dddave View Post
    performance, ftw. i'm going there for some new gatorskinz today.
    I was there at ~2 PM! You should have gone between 12-2 PM. They have a special 10% off every tuesday for accessories, clothing, etc from 12-2 pm. score!
    From Akron, Ohio ->Temple City, CA ->La Jolla, CA

    1) Fantom CX in MatteGray
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  14. #14
    Year-round cyclist
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    Apart from all the other good stuff said above, maybe one thing you would need to check :

    - Where are your brake pads relative to the rim? If your brake pads are a bit too high, they will rub on the tire, causing a blowout. If you see an opening on the side of your tire, that's probably the cause.
    Michel Gagnon
    Montréal (Québec, Canada)

  15. #15
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    If your close to UCC, then just head up the road and hit B&L. Its about another 10-15 minutes from there. They will take great care of you.

  16. #16
    A Fin j0nshaw's Avatar
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    Quote Originally Posted by Michel Gagnon View Post
    Apart from all the other good stuff said above, maybe one thing you would need to check :

    - Where are your brake pads relative to the rim? If your brake pads are a bit too high, they will rub on the tire, causing a blowout. If you see an opening on the side of your tire, that's probably the cause.
    ahh right--checked that, and it's def. a rider error. The hole is on the top of the tire, indeed.
    From Akron, Ohio ->Temple City, CA ->La Jolla, CA

    1) Fantom CX in MatteGray
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  17. #17
    A Fin j0nshaw's Avatar
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    Quote Originally Posted by couchweight View Post
    If your close to UCC, then just head up the road and hit B&L. Its about another 10-15 minutes from there. They will take great care of you.
    a tad far ...though I'd like to check it out in the near future! Thanks for that suggestion.

    --------


    Update: Put some 700 x 28C kevlar things on front + back, both with new tubes. Rides like a charm, corners hard, and sucks horribly in even slight sand/water conditions.

    Today, whilst riding home, as I was making my final right turn onto the driveway and into the gate, the front goes completely flat. Just 20 seconds ago, I took two hard turns at ~20 mph, without any sign of leakage. This final turn understeered and almost sent me into a car. Scary.

    Turns out there is a pinhole leak ON the sidewall of the tire. I'm guessing it went through the inner tube too. Just my luck with these dang rubber polymers.

    Jonathan

    P.S. Should I take it back and ask for a replacement? I've had it for a whole 2 days.
    From Akron, Ohio ->Temple City, CA ->La Jolla, CA

    1) Fantom CX in MatteGray
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  18. #18
    Senior Member dddave's Avatar
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    i would.

  19. #19
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    After you change out your tire/tube, make sure you have the right pressure for your tires too.

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