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Old 08-10-08, 01:07 PM   #1
ianfarnell808
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Old steel frame for TT bike?

Anyone used an old frame to build up a time trial bike? I thinking of making one from a grad prix I have. I know it not going to be perfect but a good project anyway.

If you have already done it could you post pics please to give me ideas.

Thanks

Ian.
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Old 08-10-08, 01:31 PM   #2
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Are you wanting to build up a vintage TT bike or use the old frame to build up a contemporary TT bike?
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Old 08-10-08, 01:41 PM   #3
ianfarnell808
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I think the answer is a budget TT bike. I have some wheels going spare which will fit ok and they are deepish profile the rest will be either the original Raleigh parts or the cheapest bits I can find (I'm thinking change the stem, handle bars and somehow move the friction shifter onto the aerobars?). Can you get the correct position on a old road frame? Somebody must have done it already and have either a success story or expensive folly!

Ian.
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Old 08-10-08, 01:45 PM   #4
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To give you an idea of what a vintage time trial bike might be like -

MOst often a five speed set up. One chainring and 5 speed cog.

Weinmann 500 sidepull brakes - lightweight(and you really dont brake much in a TT).

HUret Jubilee derailleur - lightweight and functional.

Super light sew-up wheels.

Plastic Unicanitor saddle.

And everything drilled out for lightness.

Good luck, have fun with it.
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Old 08-10-08, 01:56 PM   #5
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Just for fun, I set up my 86 Gazelle Champion Mondial as a fixed gear TT bike for the Sacramento Int'l Triathlon. I knew the course was going to be pancake flat so there was no need for gears and since I was going retro anyway, fixed gear seemed to be appropriate.




43x14 meant having to spin pretty quickly, but I prefer that to mashing, especially in a tri. Nothing particularly aero other than the bullhorns and clip-on aero bars.

The classic Dutch beauty did well: I had the ninth fastest bike leg. If only I could say the same about my swimming and running.
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Old 08-10-08, 02:01 PM   #6
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Just for fun, I set up my 86 Gazelle Champion Mondial as a fixed gear TT bike for the Sacramento Int'l Triathlon. I knew the course was going to be pancake flat so there was no need for gears and since I was going retro anyway, fixed gear seemed to be appropriate.




43x14 meant having to spin pretty quickly, but I prefer that to mashing, especially in a tri. Nothing particularly aero other than the bullhorns and clip-on aero bars.

The classic Dutch beauty did well: I had the ninth fastest bike leg. If only I could say the same about my swimming and running.
beautiful bike and set up. love the candy red frame with white accents, can't get enough...
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Old 08-10-08, 02:05 PM   #7
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That's what I want to see! Making it fixed could be a good idea to avoid having to fit shifters anywhere. Did you use the original stem an are they strong enough to take the extra load?

Ian.
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Old 08-10-08, 02:27 PM   #8
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Funny you should ask about the stem. With the normal drop bars I use a 115mm stem, but I thought I'd be too stretched out on the aerobars. I had a 100mm Ambrosio stem, but it's a 26.4mm diameter so I had to shim it with a strip of aluminum from a Coke can. It held fine.
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Old 08-10-08, 02:50 PM   #9
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Sounds like my kind of engineering. I was thinking of buying a quill adaptor and a 'fancy' new stem but I might be able to get away with the old stem. I love the look of your bike by the way.
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Old 08-11-08, 12:15 AM   #10
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Thanks again. Here's an "action" shot:

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Old 08-11-08, 09:15 AM   #11
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Originally Posted by big chainring View Post
To give you an idea of what a vintage time trial bike might be like -

MOst often a five speed set up. One chainring and 5 speed cog.

Weinmann 500 sidepull brakes - lightweight(and you really dont brake much in a TT).

HUret Jubilee derailleur - lightweight and functional.

Super light sew-up wheels.

Plastic Unicanitor saddle.

And everything drilled out for lightness.

Good luck, have fun with it.
My brother and I do battle with the carbon boys and girls with our vintage steel in the sprint triathlons we have started doing. We both plan on following a similar formula on our next builds. Single chainrings, maybe only one brake......

Caloso, that bike is awesome.
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Old 08-11-08, 12:10 PM   #12
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Originally Posted by ianfarnell808 View Post
Anyone used an old frame to build up a time trial bike? I thinking of making one from a grad prix I have. I know it not going to be perfect but a good project anyway.

If you have already done it could you post pics please to give me ideas.

Thanks

Ian.
If I were you (but Im not obviously), Id give more thought to the geometry of the frame you're looking for. I dont know how much performance oriented you are, but some frames are just sluggish once you apply some real power (like, ohhh, these vintage steel frames are soooo comfortable), and others might feel twitchy when you're touring along, but are great for an extended effort. Just my 10 cents of course (and I have been TT-ing a lot, in the past).

And some good tight wheels, with really good tires or tubes are helpful too ...
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Old 08-11-08, 12:21 PM   #13
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My brother and I do battle with the carbon boys and girls with our vintage steel in the sprint triathlons we have started doing. We both plan on following a similar formula on our next builds. Single chainrings, maybe only one brake......

Caloso, that bike is awesome.
Hah! In that race I played a mental game where I'd award myself one point for every bike I passed and bonus points if the bike was carbon or had disk wheels. Good fun.
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Old 08-11-08, 12:43 PM   #14
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I did it with a 54cm Centurion Ironman frame, TT bars with aero clamp-ons, free from LBS junk box.
I used one shifter and no FD (It's flat here).

I normally ride a 56cm, so the small frame plus the aeros and a raised saddle put my back more parallel to the ground. I used the OEM CTL-370 Arayas, not aero but lighter than most. I pulled the small chain ring off and used smaller bolts intended for SS. They mandated front / rear brakes, but yeah, I thought about it......

It worked quite well, and many newer bikes seemed to go by from front to rear. I was very uncomfortable with the aeros, so I sold them on eBay and roccobike now owns the frame set and crank set.

Then a guy offered to sell me his Ti frame, and I've started the whole mess all over again, non C&V.

I think the single-speed trick would be great here, except for one bridge.
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