These photos are cool because they also show the original Marin Quake tyres and the perfect condition of the Mavic 230SBP rim sidewalls.
I remember weighing a 230 rim BITD when it got a bit taco'd and needed replacing. 370g or something as I recall. Its taken Stan quite a while to come up with anything lighter and Mavic's only seem to be getting heavier. Still, they weren't the strongest eh?