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Thread: Reynolds 731?

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    Default Reynolds 731?

    Hello,
    Long time lurker and rider who enjoys the machinery as much as the riding.

    I occasionally run across references to Reynolds 731 tubing but can't find much information about it. Even Reynolds doesn't mention it on their website. Can anyone provide information about this tubing and why it apparently wasn't used much? What replaced it?

    Thanks,
    Steve
     

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    Default Re: Reynolds 731?

    Quote Originally Posted by Drummer View Post
    Hello,
    Long time lurker and rider who enjoys the machinery as much as the riding.

    I occasionally run across references to Reynolds 731 tubing but can't find much information about it. Even Reynolds doesn't mention it on their website. Can anyone provide information about this tubing and why it apparently wasn't used much? What replaced it?

    Thanks,
    Steve
    it was a 90s (early iirc) tubeset that was pre-packaged as being for big and fat guys atmo. the
    composition was made up from pipes already existing in the 531 range. gauges and diameters
    were selected for a target market.

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    Default Re: Reynolds 731?

    i'm pretty sure it was heat-treated 531, possibly drawn from thinner-than-standard 531

    it had a reputation for breaking, imho

    then there was the 753 "test" that all builders had to take who wanted to build with/buy 753 by submitting a sample brazed joint

    i never heard of anyone flunking said test
    Last edited by hampco; 02-03-2011 at 11:38 AM.
    Steve Hampsten
    www.hampsten.blogspot.com
    "Tighten the wingnuts!"

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    Default Re: Reynolds 731?

    Quote Originally Posted by hampco View Post
    i'm pretty sure it was heat-treated 531, possibly drawn from thinner-than-standard 531

    it had a reputation for breaking, imho

    then there was the 753 "test" that all builders had to take who wanted to build with/buy 753 by submitting a sample brazed joint

    i never heard of anyone flunking said test
    I thought that 653 was heat treated 531
     

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    Default Re: Reynolds 731?

    Quote Originally Posted by WFSTEKL View Post
    I thought that 653 was heat treated 531
    653 was cold worked 531 atmo.

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    Default Re: Reynolds 731?

    Wasn't it silver brazed? I vaguely remember the old Castorama Raleigh bikes from the early 90's boasted that it was brazed with silver- thus the higher cost.
     

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    Default Re: Reynolds 731?

    Quote Originally Posted by the bottle ride View Post
    Wasn't it silver brazed? I vaguely remember the old Castorama Raleigh bikes from the early 90's boasted that it was brazed with silver- thus the higher cost.
    You mean the Castorama Cyfac bikes?
     

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    Default Re: Reynolds 731?

    Quote Originally Posted by e-RICHIE View Post
    653 was cold worked 531 atmo.
    Heat....Cold

    Some say the world will end in fire;
    Some say in ice
     

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    Default Re: Reynolds 731?

    Quote Originally Posted by WFSTEKL View Post
    You mean the Castorama Cyfac bikes?
    I would not be surprised if they were Cyfac rebadged as Raleigh- but they released a Castorma replica replete with Dura Ace STI at the time and the price was much higher if I remember correctly.
     

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    Default Re: Reynolds 731?

    Quote Originally Posted by e-RICHIE View Post
    it was a 90s (early iirc) tubeset that was pre-packaged as being for big and fat guys atmo. the
    composition was made up from pipes already existing in the 531 range. gauges and diameters
    were selected for a target market.
    Don't most builders select tubes appropriate for the purpose at hand, rather than building bikes out of "complete" tubesets as matched/selected by the tube manufacturer? It would seem to make more sense to refer to different groups of related tubing being offered as a series or category rather than a set.
    -Jeff

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    Default Re: Reynolds 731?

    Quote Originally Posted by jmoote View Post
    Don't most builders select tubes appropriate for the purpose at hand, rather than building bikes out of "complete" tubesets as matched/selected by the tube manufacturer? It would seem to make more sense to refer to different groups of related tubing being offered as a series or category rather than a set.
    i don't know what most builders do atmo but i never bought into the reynolds thing
    once the 753 thing went live.i'm wired to be skeptical since i lived/worked in the UK.

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    Default Re: Reynolds 731?

    e-Richie is possibly confusing 731 with 700 or 708.
    700 & 708 were successive attempts at an SPX style tubeset with internal ribs.
    They were similar to 653 in using 531 forkblades, 753 stays and main tubes that were massaged in some way to be stronger than 531 but permit bronze brazing.

    731 was an oversized tubeset with the same composition.
    From memory the downtube and toptube were 7/5/7. The chainstays were 708- ie 753 material with internal ribbing or corrugation for extra stiffness at the brochure.

    The similar Columbus Nivaocrom EL-OS tubeset was arguably technically superior, but down here in New Zealand where the Reynolds distributor was friendly and conscientious 731 was the hands down winner.
    David Benson

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    Default Re: Reynolds 731?

    Quote Originally Posted by masispecial View Post
    e-Richie is possibly confusing 731 with 700 or 708.
    700 & 708 were successive attempts at an SPX style tubeset with internal ribs.
    They were similar to 653 in using 531 forkblades, 753 stays and main tubes that were massaged in some way to be stronger than 531 but permit bronze brazing.

    731 was an oversized tubeset with the same composition.
    From memory the downtube and toptube were 7/5/7. The chainstays were 708- ie 753 material with internal ribbing or corrugation for extra stiffness at the brochure.

    The similar Columbus Nivaocrom EL-OS tubeset was arguably technically superior, but down here in New Zealand where the Reynolds distributor was friendly and conscientious 731 was the hands down winner.
    no - no confusion here atmo. my reply stands. but i could be wrong atmo.

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    Default Re: Reynolds 731?

    There was some mid-90s OS Reynolds tube set and maybe you or Richard can enlighten. My 1996 Peter Mooney has an OS Reynolds downtube. The tubeset had a weight limit as I remember Peter being concerned I was kinda close. I think it was 175lbs or maybe 180. Enlighten us.

    Quote Originally Posted by masispecial View Post
    e-Richie is possibly confusing 731 with 700 or 708.
    700 & 708 were successive attempts at an SPX style tubeset with internal ribs.
    They were similar to 653 in using 531 forkblades, 753 stays and main tubes that were massaged in some way to be stronger than 531 but permit bronze brazing.

    731 was an oversized tubeset with the same composition.
    From memory the downtube and toptube were 7/5/7. The chainstays were 708- ie 753 material with internal ribbing or corrugation for extra stiffness at the brochure.

    The similar Columbus Nivaocrom EL-OS tubeset was arguably technically superior, but down here in New Zealand where the Reynolds distributor was friendly and conscientious 731 was the hands down winner.
     

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    Default Re: Reynolds 731?

    Quote Originally Posted by Bittersweet View Post
    There was some mid-90s OS Reynolds tube set and maybe you or Richard can enlighten. My 1996 Peter Mooney has an OS Reynolds downtube. The tubeset had a weight limit as I remember Peter being concerned I was kinda close. I think it was 175lbs or maybe 180. Enlighten us.
    ya atmo see my first reply - i stand by it.

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    Default Re: Reynolds 731?

    I remember Quattro Assi 731 frames in the 90's. A good bump in the road and the paint would fall off. They rode nice but you had to be sure of your tetanus shot.
    I heart burnt bikes.

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    Default Re: Reynolds 731?

    Quote Originally Posted by e-RICHIE View Post
    ya atmo see my first reply - i stand by it.
    Are you saying I'm "fat"? ;)
     

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    Default Re: Reynolds 731?

    Thanks guys...this was very helpful information.

    Thanks for the Bicycle Guide article. I sure do miss that magazine.
     

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    Default Re: Reynolds 731?

    All your questions answered:

    David Benson

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