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  1. #1
    I let the dogs out AlphaDogg's Avatar
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    Possible to use 700c rear and 27" front?

    My front wheel is REALLY badly of true, so I took it to Sports Authority for it to be replaced under warranty. I'd have them true it, except I did and the spoke tension is so uneven. The reason it's so badly out of true? I hit a pole back in October. I trued it and have been riding on it (approximately 250mi), but it has just been getting worse and worse. To have it true, one of the spokes needs to be completely loose, which as far as I know is detrimental to having a solid wheel.

    So I went to Sports Authority and they needed to retain the wheel so that they could replace it. It'll be about 2 weeks before they can have a new one in for me. I've been riding on my trainer and I need a front wheel to hold up the front end of the bike, so I grabbed the 27" front off of my dad's old Motobecane road bike. I knew that all modern front wheels are spaced at 110mm, so whatever wheel I used would be fine. I installed the wheel on my (700c) bike and it fit the dropouts and the brake pad spacing from my 700c wheel. If the weather clears up, can I ride on the 27" front and 700c rear wheel?
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  2. #2
    Bianchi Goddess Bianchigirll's Avatar
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    You hit a pothole back in October and have been trying to true the wheel yourself since then but Sports Authority is getting you a new wheel under warranty? WOW

    the geomentry will be slightly off so you may or may not notice any funny handling but if the brake pads line up OK got for it.
    Bianchis '87 Sport SX, '90 Proto, '90 Campione del Fausto Giamondi Specialisma Italiano Mundo, '91 Boarala 'cross, '93 Project 3, '86 Volpe, '97 Ti Megatube, , '90 something Vento 603,

    Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '09 Motobecane SS, '?? Jane Doe (still on the drawing board), '90ish Haro Escape

  3. #3
    I let the dogs out AlphaDogg's Avatar
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    Quote Originally Posted by Bianchigirll View Post
    You hit a pothole back in October and have been trying to true the wheel yourself since then but Sports Authority is getting you a new wheel under warranty? WOW
    Is that a wow as in "I shouldn't have trued it and had them do it" or wow as in "Sports Authority's warranty will replace a wheel from a crash?!" The Sports Authority warranty covers crash damage, neglect (bent rd's, hangers, etc), regular maintenance (truing, lubricating, repacking bearings) for 3 years for $60. I already had my rear wheel replaced because a spoke broke and they ****ed it up trying to fix it (a double walled rim, 7sp freewheel wheel that would have cost about $60 if I purchased it)

    Also, will I have any issues braking on a steel rim with these pads?
    Last edited by AlphaDogg; 02-05-12 at 05:47 PM.
    Quote Originally Posted by Andrew R Stewart View Post
    Weird spell/word check. "***" is "***". I'll never understand this computer. Andy.

  4. #4
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    The brakes should work fine as long as you can get the pads to line up properly on the rim and it's dry. Steel rims don't provide good braking when wet, but I found them to be slightly better than aluminum ones when dry.

  5. #5
    Senior Member Bill Kapaun's Avatar
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    About the only way to find out how the brakes work is to try them!
    A steel wheel isn't gpoing to be as good as aluminum, but people used them for years.
    You just might want to ride a bit more conservatively in situation where a rapid stop might be required.
    It's only for 2 weeks!

  6. #6
    RIP Sonny RaleighSport's Avatar
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    IIRC a 700x32 tire on a 700c wheel comes out to the same as a 27x1 1/2 or something like that. I'm sure there's a lot of fine subtleties I don't know about, but you should be fine.

    Only real limit is brake reach of course.
    "Seriously is what I want to be, so I put on spandex and show off my gear, my junk, my thing, yes my ding-a-ling."

  7. #7
    Constant tinkerer FastJake's Avatar
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    +1 I'm surprised they offer a warranty to cover crash damage, etc. Sounds like you are getting your moneys worth out of it. Yes, a 27" wheel will work fine if the brake pads reach. Any brake pads should be fine with a steel rim, but be prepared to have no braking power when that rim is wet.

    Quote Originally Posted by AlphaDogg View Post
    I knew that all modern front wheels are spaced at 110mm
    100mm, actually.
    Why "derailer" is the correct way to spell the gear-change mechanism: sheldonbrown.com/derailer.html

  8. #8
    I let the dogs out AlphaDogg's Avatar
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    Thanks all, I am planning on riding next weekend, but the MUP is covered in slush right now and will likely be 25% covered in water next weekend. Last time I rode in wet conditions on my aluminum front rim, I had significantly lowered braking power. I guess I'll have to be relying on my rear brake and anticipating a lot of skids .

    Oh and I was going to say 100mm, but I said 110 instead. Oops!

    FWIW, I am running a 25c tire in the rear and a 1 1/8" in the front right now.

    You guys really are great!
    Quote Originally Posted by Andrew R Stewart View Post
    Weird spell/word check. "***" is "***". I'll never understand this computer. Andy.

  9. #9
    Bianchi Goddess Bianchigirll's Avatar
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    It was WOW as in they are replaceing a wheel that you crashed and likely buggered up even more wrenching on it.

    From what I saw on the News earlier the MUP may be unusable for months!
    Bianchis '87 Sport SX, '90 Proto, '90 Campione del Fausto Giamondi Specialisma Italiano Mundo, '91 Boarala 'cross, '93 Project 3, '86 Volpe, '97 Ti Megatube, , '90 something Vento 603,

    Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '09 Motobecane SS, '?? Jane Doe (still on the drawing board), '90ish Haro Escape

  10. #10
    I let the dogs out AlphaDogg's Avatar
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    Quote Originally Posted by Bianchigirll View Post
    It was WOW as in they are replaceing a wheel that you crashed and likely buggered up even more wrenching on it.

    From what I saw on the News earlier the MUP may be unusable for months!
    They shovel it, so it should be rideable next weekend, provided we don't get any more snow this week!
    Quote Originally Posted by Andrew R Stewart View Post
    Weird spell/word check. "***" is "***". I'll never understand this computer. Andy.

  11. #11
    over the hill juls's Avatar
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    None of my 700 bikes will take a 27 wheel=no clearance at the fork-what kind of bike do you have-hybrid? Just curious.

  12. #12
    I let the dogs out AlphaDogg's Avatar
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    Quote Originally Posted by juls View Post
    None of my 700 bikes will take a 27 wheel=no clearance at the fork-what kind of bike do you have-hybrid? Just curious.
    Yeah I have a hybrid. There's enough clearance on the fork/rear triangle for at least a 45c tire.
    Quote Originally Posted by Andrew R Stewart View Post
    Weird spell/word check. "***" is "***". I'll never understand this computer. Andy.

  13. #13
    RIP Sonny RaleighSport's Avatar
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    I do gotta say, that is awesome on SA's part.
    "Seriously is what I want to be, so I put on spandex and show off my gear, my junk, my thing, yes my ding-a-ling."

  14. #14
    I let the dogs out AlphaDogg's Avatar
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    They called me today for the serial number of the bike so they could make a warranty claim and order the new wheel. The bike guys are clueless there. He kept referring to the wheel as a rim... I had to explain to him to save my velox rim tape (stock rubber tape was **** and destroyed a tube once I got some decent high pressure tires) and that it's adhesive and he should not let it touch the shop floor. I'm sure that when I get back there, the velox tape will be destroyed.. Ahh whatever, it's only $2 or so. But I gotta say, this warranty has been the best! I'm not sure I want to get a "real" bike from a real bike shop because I'd have to pay for all parts that need to be replaced... Whatever, I'll learn to be gentler on my stuff and make sure not to crash into any poles when I get an all carbon roadie (that'll be the day...... I need to get money for it first!).
    Quote Originally Posted by Andrew R Stewart View Post
    Weird spell/word check. "***" is "***". I'll never understand this computer. Andy.

  15. #15
    You gonna eat that? Doohickie's Avatar
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    You won't notice the difference. 27" = 708 mm. So we're talking about approximately an eighth of an inch difference in radius. If you can feel the difference, you could probably feel a pea under your mattress. There might be an issue with where the brakes contact the rim... you can probably adjust them, but other than that, no worries.
    I stop for people / whose right of way I honor / but not for no one.



    Originally Posted by bragi "However, it's never a good idea to overgeneralize."

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