Ridley reveal one-off 5.52kg Helium SL + video

yocto: That was one justification, yes. Another was to keep costs of competitive equipment in check. The general principle for the rule is the Lugano charter, that cycling should primarily be a human, physical competition:

http://velonews.competitor.com/2011/12/bikes-and-tech/the-torqued-wrench...

From a simple structural engineer's standpoint, the best way to save weight on any of today's 'light' bikes would be to make them bespoke, that is, remove all the joints that allow them to be adjusted to fit individuals' physical (or psychological) needs or preferences. So integrate the seat frame with the tube, integrate the seat tube with the frame, integrate the handlebar with the steering head. That way you save the weight of several nuts and bolts, and areas with double-thickness carbon composite. Now that would be a way to make your bike seriously expensive, and you might even save another half a kilo. And it'd not be worth too much to a thief, as it'd take a hacksaw and a carbon repair kit to make it fit anyone but the original owner. But practical? No.

Boring. I thought from the title actual helium played a part. If you made the frame tubes airtight and you replaced the air in the tubes with helium surely the bike would be a weensier bit lighter?

And if you rode naked as well..? Marginal gains and all that..

You say this bike makes a "mockery" of the UCI minimum-weight rule, but then you also say "Okay so the parts they used are eye-wateringly expensive, but light bikes come with heavy price tags, as we all know". Which makes it clear why this bike does *not* make a mockery of that rule at all - indeed, it proves why the rule *exists*.

I like to lighten up my wheels. Rotating weight etc etc. but not with latex inner tubes which seem to have a nasty habit of exploding at unsociable times. My neighbours thought I was doing an Oscar Pistorius on my girlfriend the other night and only just avoided calling the cops :-O Butyl next time. And you can repair them

Give it the 'fixie' treatment, should save another kilo. 4.5Kg, thats more like it. Any why not fill the frame, tubes, post and bars with helium!

I've shed 3kg from me, and about 600kg from my wheels. Noticeable difference.

I usually manage to take a 1kg sh1t before a ride. Then I chuck a shed load of cash at the LBS and they change all the components for the most expensive available.
All I need to do now is stop drinking beer and eating food and I can get myself down to 70kg's and ride like a god.

I am looking at making a 5kg weight saving, 4.3 from me and then just carrying one water bottle instead of 2 nearly 800 grams there alone!