RE: [CR]KOFs and the market, morphed to classic v. modern steel frame weight

(Example: Framebuilders:Richard Moon)

Date: Fri, 10 Mar 2006 12:01:21 -0800 (PST)
From: "David Ross" <>
Subject: RE: [CR]KOFs and the market, morphed to classic v. modern steel frame weight

Peter Kohler wrote:
> Now, I don't have a frame weight c. 1950 for Reynolds 531. So
> let's just assume (for no good reason) it's a full pound more
> than in 1980. Call it 7 1/4. But show me a c. 2006 KOF steel
> frame 21 1/2" that weighs half that and I'll eat it with mustard.

I made a few steel lugged frames in the 2.5 lb range and forks around 1 lb, that would put it about half your theoretical 7-1/4 lb (assuming your weights include forks?) I did that in the late 80s -early 90s, so I assume modern builders can match that - no? What say you, modern builders (or those who know what a light frame weighs these days)?

I agree with Peter that most high-end classic race frames were not that heavy - not near double what a PRACTICAL modern lightweight steel frame has to come in at. One website selling Pegoretti Luigino says the weight is 4.4 lb - but they don't say what frame size, and don't say whether that includes the fork. I'm pretty sure it doesn't, but even if it does that ain't half the weight of the classic racer. I bet many modern KOF frames are in fact heavier than many of the lightest classics. ...

I weighed my 1952 Hobbs Blue Riband frame and fork before stripping off the several layers of old paint. I'm sure it's not the lightest frame built in the '50s, but it is fairly light:

frame 1979g, 4.36lbs fork 680g, 1.5lbs

total 2659g, 5.86lbs

Frame size is 22.5" (57cm) c-t-c seat tube, 22.75" (58cm) c-t-c top tube. I'm pretty sure the frame is 531 and the fork steerer and blades are A&P. I haven't ridden it yet so can't comment on ride quality, but I suspect it will be on the "flexy" side.

Dave Ross
Portola Valley, CA