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frame lug safety question

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frame lug safety question

Old 08-29-08, 05:38 PM
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sbskates
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frame lug safety question

I have an older steel frame thats lugged. its about 17 yrs old. anyway the guy i got it from trimmed the headtube down at the top and bottom maybe 1/4 inch each so the headset was lower. he raced on it for years after. i am building a single speed commuter trainer with it. should i have any worries about the strength etc. its is a high end race frame so it was made well.
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Old 08-29-08, 05:51 PM
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Ride your new frame and don't worry about it.
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Old 08-29-08, 05:52 PM
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G piny parnas
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if the welds have been ground to fit a cup or there are signs of bulging on the down and top tubes--- careful....
a front brake only promotes stress..... what kind of steel is this?---
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Old 08-29-08, 08:00 PM
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If he trimmed the bottom of the headset then that will have lowered the frame a hair. That'll steepen the steering angle and slightly shorten the trail all at the same time. The bike will handle like it's connected to your very thoughts but may feel a little nervous because of that. Road racing bikes are sensitive anyway and shortening the bottom of the steering head tube so it steepens the angle even this small an amount will likely be enough to notice. Mind you since you didn't ride it back when it was original you'll likely not notice other than it seems like a "spirited" handling frame.

And as for not working it did fine for a lot of years as a racer. You'll be fine with it.
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Old 08-29-08, 08:23 PM
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Originally Posted by G piny parnas View Post
if the welds have been ground to fit a cup or there are signs of bulging on the down and top tubes--- careful....
a front brake only promotes stress..... what kind of steel is this?---
Lugged steel frames aren't welded, they're brazed.
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Old 09-02-08, 09:49 AM
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sorry-- too dazed to see the "lugged" word in the first sentence---- you must determine that the frame has never been wrecked-- maybe thats what I mean--- good luck
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