Re: [CR]Was: downtube & top tube replacement.. Now, cold setting...

(Example: Component Manufacturers:Chater-Lea)

Date: Thu, 30 Jun 2005 15:03:05 -0500
To: "Verizon" <smwillis@verizon.net>, <Classicrendezvous@bikelist.org>
From: "Troy Courtney" <troy@cccycles.com>
Subject: Re: [CR]Was: downtube & top tube replacement.. Now, cold setting...
In-Reply-To: <001701c57d8d$8f2451b0$2f01a8c0@t1s9z1>
References: <20050629022638.26789.qmail@web50007.mail.yahoo.com> <002c01c57cc2$b98ca8b0$2f01a8c0@t1s9z1> <8C74AEBF4B41892-95C-16615@MBLK-M38.sysops.aol.com> <42C2E68D.2010107@new.rr.com> <8C74B04D96B5AD7-95C-17ABF@MBLK-M38.sysops.aol.com> <6.2.1.2.2.20050629200434.032a4eb0@mail.cccycles.com>


All that I could do...pull apart the rear triangle and rebuild it with new tubes. Did not make the same mistake twice. The wife is still riding the same bike nine years later. She will be happier when I finish the new Candy Apple paint job she has been waiting for.

Troy

At 11:05 AM 6/30/2005, Verizon wrote:
>Sooooo, what happen next? All ears Steven
>Steven Willis
>1778 East Second Street
>Scotch Plains NJ 07076
>908-322-3330
>www.thebikestand.com
>----- Original Message ----- From: "Troy Courtney" <troy@cccycles.com>
>To: <Classicrendezvous@bikelist.org>
>Sent: Wednesday, June 29, 2005 6:19 PM
>Subject: Re: [CR]Was: downtube & top tube replacement.. Now, cold setting...
>
>
>>The second frame I built was for my wife. I used the TrueTemper RCX2 heat
>>treated set. When I completes the frame the rear drops had closed up and
>>were offset by about 5 mm on one side and 2 mm on the other. Not huge,
>>but needed to be corrected. Locked down the BB shell and started to crank
>>on the stays. The one that was 2 mm out came back in with some effort but
>>not too bad. Likewise, the one that was 5 mm out moved about 2 mm
>>relatively easily. But it would not budge for the remaining 3 mm. The
>>stay would just spring back to where it had started. On my last attempt I
>>gave it nice hard pull...then "SNAP", the stay folded in two.
>>
>>The heat treated tubes are tough.
>>
>>Troy
>>
>>Courtney Custom Cycles
>>Geneva, IL
>>http://www.cccycles.com
>>
>>
>>
>>At 04:01 PM 6/29/2005, oroboyz@aol.com wrote:
>>><< Executive summary: Reynolds wasn't kidding. Rather than taking a cold
>>>set, 753 resists completely until a critical threshold, then fails
>>>completely. >>
>>>
>>>Ha! That truly is a unique experience..
>>>
>>>There WAS a local builder named, Chris Wittman made frames under the
>>>"Slim" label (don't ask)
>>>
>>> He called me up one day asking to come to my home work shop (Cirque
>>> folks know it well) and have me assist him with my alignment table on
>>> an Columbus EL-OS frame that he"had built a little off." Oh yeah, it
>>> was a little off alright!
>>>
>>>Anyway, I let him do the brute force bit after I had clamped it in and
>>>realized how far off it really was... He grunted and heaved and jumped
>>>up using his whole body to try to bend it... Then out of the blue, it
>>>went POW! Totally twisted into a wrinkle potato chip! Awesome! But we
>>>both were amazed how much oomph he had to use.. Steel is real, baby!
>>>
>>>
>>>
>>>Dale Brown
>>>cycles de ORO, Inc
>>>1410 Mill Street
>>>Greensboro, NC 27408 USA
>>>336-274-5959
>>>www.cyclesdeoro.com
>>>www.classicrendezvous.com
>>>Giant, Specialized, Bianchi, Felt, Orbea, Litespeed, Kuota, Argon 18,
>>>Colnago, Landshark, Townie and other exotica.
>>>Member, board of directors, National Bicycle Dealers Association
>>>
>>>-----Original Message-----
>>>From: John Thompson <JohnThompson@new.rr.com>
>>>To: Classicrendezvous@bikelist.org
>>>Sent: Wed, 29 Jun 2005 13:21:01 -0500
>>>Subject: Re: [CR]Frame Repair/downtube & top tube replacement.....?s
>>>
>>> oroboyz@aol.com wrote:
>>>
>>>>Steve, that reminds me that you CAN get away with amazing stuff with
>>>>steel frames.
>>>> A former shop employee of mine & racer girl (Vikki Coffey as many of
>>>>you NC boys will remember.. fast rider, gorgeous and smart) endo-ed
>>>her
>>>>DeRosa and Ijacked it back out... she rode it another year and sold it
>>>>to Rick Dedman in Southern Pines (an attorney no less!) who rode it
>>>>another 5 or 6 years! Astounding!
>>>
>>>Some steel frames, anyway. I wouldn't try that with a 753 frame!
>>>
>>>We had more than a couple crashed 753 frames returned to us at Trek;
>>>we'd just build a new frame as a replacement. Reynolds did not recommend
>>>cold-setting 753, so we decided to see what would happen using these
>>>damaged frames as crash-test dummies. Executive summary: Reynolds wasn't
>>>kidding. Rather than taking a cold set, 753 resists completely until a
>>>critical threshold, then fails completely.
>>>
>>>--
>>>John (john@os2.dhs.org)
>>>Appleton WI USA