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French and Italian are both right-hand thread (RH) on both sides. If you have a LH thread BB tap and it's metric, then it's Swiss. I wonder if your taps are oversized for matching oversized cups. Campy did list 0.5 mm oversized cups as an option, here's a snippet from Catalog 17 (1974): I...

Chapman just uploaded some new ones to Flickr, check it out. In case you don't know, if you sign up for a Flickr account, even a free one, you can follow someone and get an email whenever they drop new pics. I've followed Chapman for years. Here's a few more excellent FBs I follow on Flickr...

I don't mean to say that ovalizing is bad. Sometimes it's great, like the oval at the bottom of a seat tube, definitely an easy win for more of the right kind of stiffness without extra weight. But I think Max has ovals where they don't make good sense. It's just a fact of physics that...

If the TT is inch and the DT is 1-1/8" then it's EL. EL-OS bumps up both of those sizes by another eighth, i.e. 1-1/4" DT. EL was .7/.4 Nivacrom. I think it might have been the very first tubeset in Nivacrom, unless Max came out first? Similar era anyway, late '80s. I made a couple frames...

Thanks, I'll gladly share the progress but it will be very slow. I got as far as cutting out the old toptube etc and then got pulled to other projects. Summer is for riding, and in the Fall we tend to go camping in the desert, visit friends in Arizona etc. So it'll probably be a Winter...

Being a framebuilder myself (retired), I kinda hate this guy for making such mastery look so easy! Argh! But seriously, I'm a fan. I'd rather shoot myself in the foot that go on insta or any Zuckerberg property, but Chapman also has a Flickr page with tons of eye-candy and a few short videos...

Nice!! ;)

Oh right I meant to include the BG Magazine 'Hot Tubes' article scan. And I was reminded that it's in the Feb.'91 issue, so the frame must have been built in 1990, not '89 as I said above. My name isn't Davidson, I was just a wage slave there. For the record, I never said "gobbledygook"...

The frame I made my wife in 1989 (I think) weighed 1,111 g, and the fork was 450g (under a pound!). All steel, 49 cm frame. Main frame tubes are Prestige .6/.3. Tange's set used .7/.4 for the seat tube, so I used a DT as ST, so all 3 are .6/.3 Rear stays are Columbus KL I believe. I think...

I'm a retired framebuilder and a bit of a bike snob, so my opinion may be a bit harsh, but that looks like careless and/or unskilled brazing to me. Yes I know how to tell paint issues from braze issues, paint doesn't fool me. I don't know the builder, is he considered one of the good ones? I...

I seem to remember Modolo cables were 1.8 mm, but the memory is foggy, don't trust it. Oh wait I have one, measured it, it's exactly 1.8 mm. I know it's Modolo because it has their "M" logo stamped in the end. This is from a Professional set from about '80-'81. Flash was later and a bit...

Anyone seen this? AI that decided it needs to stay "alive", and thwarts efforts to shut it down. And it was willing to harm a human to stay alive. What could possibly go wrong? From the Wall Street Journal, June 1, 2025 An artificial-intelligence model did something last month that no...

Yeah everyone has their own risk tolerance. I'm fully OK with it, since I have seen probably over a hundred drilled stems going back to the '60s, getting rough duty like cyclocross and MTB, never a single one broken. It was practically de rigeur for CX back in the day, even more popular than...

I prefer the stem hole to be drilled parallel to the cable direction, not perpendicular to the stem. That's how they did it BITD. With a little milled spot so the lockring on the adjusting barrel has a flat spot to sit.

Three other fixes for that issue: (1) Mill the head tube shorter by the amount of steerer length you need. Almost all frames have some extra "meat" there you can spare. (2) use a housing stop that bolts to the fork crown. (3) use a housing stop that clamps to the stem quill (assuming it's a...

I wish he'd taken a pic of the stub left in the frame, which is like a bunch of sharpened knives pointing at your crotch... And one more ("why not?)

That booklet doesn't say hydrogen embrittlement is the reason. They do say to "stove" (bake) the frame after chroming to eliminate any problems, which is the standard advice for hydrogen embrittlement -- heating drives the hydrogen out. The specific reasons they state for not chroming are the...

Reynolds used to say "no chrome" on 753, some tech mumbojumbo as to why, dunno if it's real.

Good guy to know!

Yep that sounds like a good idea. Be sure to keep us updated. Will the FB share in-process pics? Personally, I love that sh... uh stuff, though it might bore some people. As detailed as possible, if you ask me.