what kind of bars are those? i've been looking for some in that style.

They are Mavic TT bars.

The difference would be hard to notice for all but the most sensitive riders. We're talking a .1% increase in efficiency. Thats probably why it never caught on. As far as feel because of size, then yes, the gear inches would be the same so it would feel be the same.

i thought it didnt catch on because shimano had a hell of a time getting njs approval. ive seen pictures of a road version too, but only in a catalogue

In "bicycling science" an example is referenced of small pitch chain bikes smashing records in the 1930s over 1/2" pitch chains, obviously by such large margins that the chains were banned. I don't have the book in front of me so I can't quote it, nor do I really understand what is actally happening with the physics and such.

I believe part of the reason why it didn't get NJS approval because of the efficency gains of 10 pitch over 1/2" pitch. But I could have made that up. I do frequently confuse pipe dream "a-ha" moments with facts.

that would make sense, being it their job to maintain a level playing field.

Ooh. Got a link?

http://www.asahi-net.or.jp/~uc6y-ssk...imano76_03.jpg

best i can find... look at the little ones in the lower right

Let me know if you find it. The only mention of varying pitch i can find is on page 321 where he mentions an 8mm pitch chain being used in 1909 to break records. Though it doesn't really specify if the chain had much to do with the record breaking. His basic point is that if you were to keep the same diameter cog but run a smaller pitch than 1/2", you would be able to have more teeth. More teeth means better efficiency. But that means the overall diameters of the chainring and cog would be the same, but the tooth count would be different. so a 46/13 in 1/2" pitch would feel the same as 46/13 in 10mm pitch. the benefit would be gained if you went to 58/16 which have the same diameter as 46/13 in 1/2" pitch and be approx. the same gear ratio.

As for the shimano stuff, I don't have any direct knowledge of the history of it, so I'll leave that to the others.

campy

Last one, I promise. Bars... wrap.. I know.

http://velospace.org/files/yampro.jpg

oh my.

dont be silly ....no tape , unless its white toshi cloth

I agree, I think they look great bare.

You should really wrap and plug your bars.

Jonb it looks fantastic bars wrapped or not.

or at least plug. thigh core sample=bad news

that **** is the bomb.com, no matter what happens to the bars!

and thanks for the tip on the campy hubs, sniks...

Did you guys team up to rob a bank or what?
Lots of hot bikes recently...

Impossible with bullhorns. Now it might be nice to avoid a core sample of the back of the person riding in front of you... :D

but a cheek core shot is not outta the question.
riding without bar plugs is dangerous.......like riding without brakes ,but we do it anyway.oh well.

Plugs don't usually hurt the sexification factor like brakes...

Bar wrap adds too much weight to your bike...might as well ditch the bars too..My excuse for no bar wrap is that I suck at wrapping them.

Huh, maybe that's what I was referring to. I guess I confused the specifics a little. It sounds like you really know what you are talking about.