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  1. #1
    vol
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    700x35c=700cx35?

    Are these two wheel sizes the same or not?

  2. #2
    Senior Member BCRider's Avatar
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    700c is the name given to the tire size most commonly used for road bikes. I don't know if 35c is a valid descriptor or not.
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    vol
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    My wheels spec is "700x35c". Here is one such.
    Last edited by vol; 09-17-10 at 06:21 PM.

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    I don't think I have ever seen 700C X 35. The size is called 700C (means rim has 622mm bead seat diameter(BSD)) but is usually combined with the tire width to give 700 X xxC, like 700 X 35C (as far as I can recall, anyway)

    Regardless - if the tire say '700' somewhere on it, it will fit your 700C rim. Check other places and you will see the ISO BSD measurement of 622.

    Edit: From a Bontrager/Trek bike spec sheet: "Tires Bontrager CXO, 700x34c"

    From Specialized Cirrus spec sheet:
    "FRONT TIRE Specialized All Condition Armadillo Elite, 700x23c"

    And from Kona 'Jake the Snake' bike spec sheet:
    "Front Tire Maxxis Mud Wrestler 700x35C Kevlar Rear Tire Maxxis Mud Wrestler 700x35C Kevlar"
    Last edited by LarDasse74; 09-17-10 at 06:23 PM.

  5. #5
    rebmeM roineS JanMM's Avatar
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    The wheel size is 700C in the French system. http://www.sheldonbrown.com/tire-sizing.html
    That would be 700C x 35.
    700 x 35C would be a typo or error.
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    Quote Originally Posted by JanMM View Post
    The wheel size is 700C in the French system. http://www.sheldonbrown.com/tire-sizing.html
    That would be 700C x 35.
    700 x 35C would be a typo or error.
    Here is a page from Harris Cyclery - the host for Sheldonbrown.com

    http://sheldonbrown.com/harris/tires/622.html

    All 700C tires on the Harris Cyclery website are given as 700 X xxC, not one instance of 700C X xx.
    It may be confusing, and I am not saying it is right, but that is the normal way it is written. Luckily, any bike shop, when asked for a "700C X 35" or "700 X 35" or "700 X 35C" will probably know what you mean. If they don't... find another bike shop.

    Edit: From the Sheldon Brown page linked above...
    "For example, a 700 x 20 C road tire would be a 20-622; a 700 x 38 hybrid tire would be a 38-622."

    He uses with the 'C' after the width and with no 'C' at all.

  7. #7
    rebmeM roineS JanMM's Avatar
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    Quote Originally Posted by LarDasse74 View Post
    Here is a page from Harris Cyclery - the host for Sheldonbrown.com

    http://sheldonbrown.com/harris/tires/622.html

    All 700C tires on the Harris Cyclery website are given as 700 X xxC, not one instance of 700C X xx.
    It may be confusing, and I am not saying it is right, but that is the normal way it is written. Luckily, any bike shop, when asked for a "700C X 35" or "700 X 35" or "700 X 35C" will probably know what you mean. If they don't... find another bike shop.

    Edit: From the Sheldon Brown page linked above...
    "For example, a 700 x 20 C road tire would be a 20-622; a 700 x 38 hybrid tire would be a 38-622."

    He uses with the 'C' after the width and with no 'C' at all.
    OK. I see. What a mess bike tire nomenclature is. I resolve to never again say or write 700 or 700c and will forever use 622. Ha!

    And, further, I will only ride on 559 wheels, which I do. Until I get a bike with 700c, I mean 700 wheels.
    Last edited by JanMM; 09-17-10 at 07:08 PM.
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    Quote Originally Posted by JanMM View Post
    OK. I see. What a mess bike tire nomenclature is. I resolve to never again say or write 700 or 700c and will forever use 622. Ha!

    And, further, I will only ride on 559 wheels, which I do. Until I get a bike with 700c, I mean 700 wheels.
    700 wheels! That is not a bicycle - it is a septcenti-cycle!

  9. #9
    vol
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    So looks like there is no different animal... As long as no possible confusion, that's good.

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    700C is the original size for the 622 rim. The 700 A&B is no longer in use as far as I know.

  11. #11
    Senior Member oldbobcat's Avatar
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    For nit-pickers the correct nomenclature is 700C X 35, which means 622 mm rim flange diameter by 35 mm tire diameter. Chances are, this is what any combination of the fragments "700," "C", "X," and "35" signify.

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    Quote Originally Posted by oldbobcat View Post
    ...the correct nomenclature is 700C X 35...
    Thank you for the 'correction.' I have been using it wrong since I was a child, then for 15 years working in bike shops.

    I guess I will have to send corrections to the people maintaining the following websites, as they all use it wrong too...

    www.sheldonbrown.com
    www.specialized.com
    www.conti-online.com (continental tires)
    www.maxxis.com (maxxis tires)
    www.kenda.com.tw (kenda tires)
    www.pricepoint.com
    www.cannondale.com
    www.schwinnbike.com
    www.jamisbikes.com
    http://www.panaracer.com/ (panaracer tires)
    www.vittoria.com (vittoria tires)...



    I could go on, but I shudder to think how many people I will have to notify of this ongoing error. They are all going to be so embarrased when I tell them some random guy on the internet says they are labelling and selling their tires wrong.

    Thank you, sir. Thank you. Thank you. And again, I thank you.

  13. #13
    vol
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    Quote Originally Posted by oldbobcat View Post
    For nit-pickers the correct nomenclature is 700C X 35, which means 622 mm rim flange diameter by 35 mm tire diameter.
    Did you mean to say "35 mm tire width"? (tire or rim, by the way?)

  14. #14
    Old fart JohnDThompson's Avatar
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    Use the ISO (ETRTO) sizing standard and say goodbye to the confusion. A 700 x 35C or 700C x 35 would both be designated as 35-622 under the ETRTO system.

    Most, if not all, modern tires should have ETRTO size markings on them.

  15. #15
    Bicycle Repair Man !!! Sixty Fiver's Avatar
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    Quote Originally Posted by davidad View Post
    700C is the original size for the 622 rim. The 700 A&B is no longer in use as far as I know.
    The letters used to denote rim width in the French system and now 700c describes all 622 mm rims.

    Friend snagged a Dawes Kingpin folder here today and it is fitted with 500A rims which are 440 mm... if anyone knows where to find tyres in the size I would be happy to know this.

    Barring that it is looking like we will rebuild his wheels to the more common 451 size.

  16. #16
    coprolite fietsbob's Avatar
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    35C is a pretty hot day..

  17. #17
    Bicycle Repair Man !!! Sixty Fiver's Avatar
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    Quote Originally Posted by fietsbob View Post
    35C is a pretty hot day..
    I don't think we ever got that warm here this summer... it has been a cool and wet season here that feels more like the PNW than Alberta.

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