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Might look like that, but in order to get proper aero-profile steel tubing Rob had to use tubes with much thicker walls than you normally would use on a bike. Steel bike tubes are generally between 0.35mm and 0.6mm in the middle sections (thicker at the ends, obviously, on double-butted tubing) but the walls on that one are much thicker. I suspect they're 16g, or 1.6mm. The downside is it's heavy. The upside is it's still reasonably strong despite the small tube sizes. And I suspect it's not all that stiff. At all. Wibbly wobbly in fact.
Still not porn though.
Brommers-
He built his own TT bike and has good times riding it. That's got to count for something.
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I suspect they're 16g, or 1.6mm
I think they are even more than that, IIRC 10g or 3.2mm, which is also what I calculated (back of a fag packet, not precise) they would need to be for his ¾" wide downtube to be about as stiff as a 753 1⅛" × 0.5mm wall downtube.
miro_o
gbj_tester
Cant help thinking that with anyone bigger than Willie Carson in the saddle that English would fold like a clothes horse from JML. /SWIDT