Bike porn

If a drive side crank is more aerodynamic, why not put a chainring on both sides.

It's not as simple as that. The drag difference occurs when there's a cross wind, and it's the drag of the whole bike which is slightly lower if the wind is coming from the one side compared with it coming from the other at the same speed. If having a second chainring adds drag when there's no crosswind, then that could easily outweigh the benefit of having made the crosswind drag symmetrical, and the interference between the two chainrings might even increase the absolute drag in crosswinds even while making it symmetrical.

according to felt "After repeated tests, Felt’s engineers determined that riders experience winds at 2.5 to 5 degrees of yaw for up to 80 percent of the track’s length."

Felt’s engineers determined that riders experience winds at 2.5 to 5 degrees of yaw for up to 80 percent of the track’s length

Yes, and always from the same side on the track. It's a special case. You can lower the drag by moving the drive to the best side if your crosswind is always coming from the same side, but you can't necessarily reduce it further by adding another drive train on the other side.

If you want to test your hypothesis against people who actually know about this stuff, take it to the Aerodynamics thread so that the Porn people don't have to put up with too much chat.

you're right, porn is better for vette suspension

Two Dura Ace AX cranks <3

If you'd levelled that up, you'd probably have spotted that the set-up is far more anti- than porn

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Patfatenough must be trolling ; )

If you forget about the chain being on the wrong ring + gear, no toe clips + straps, saddle angle, cables & bar angle.....

...and 36 Spokes at the rear wheel then and only then it will be perfect for Bike Porn ; )

dont stop there !!

Hi @adam_b83 where is this 24"x24" Raleigh from please?

where is this 24"x24" Raleigh from please?

More information and pictures can be found here: http://mombat.org/MOMBAT/Museum/Lightweight_Museum.html

And: http://mombat.org/MOMBAT/Museum/Olympic_History.html

http://www.pedalroom.com/bike/1983-raleigh-us-team-pursuit-1211

yeah, thanks guys, I knew what that bike was, just for a second thought it might've been for sale... I guess not :)

Is that Panasonic frame above just painted normally? Or is it chromed underneath with some type of translucent orange type clear coat? (in the US it's referred to as Candy paint)

My frame is chromed underneath the worn paint and was looking into that option...but from what I understand there is a LOT of prep work/labor intensive to do a good job.

Is that Panasonic frame above just painted normally? Or is it chromed underneath with some type of translucent orange type clear coat?

Hard to say. Couldn't really find more information about the paint, other than some more pictures. Here is a close up:

You can see some damage and what appears to be an edge around (one of) the chips. Might be chromed underneath? More: http://www.lockedcog.com/bikes/trappin-super-panasonic/

I think they chrome the frame and then put a slightly transparently paint later on top, think there's a name for it but can't remember. Seen it on a few njs frames and a few times on I think razesa frames?

Chromovelato.

That's the one

(in the US it's referred to as Candy paint)

You mean candy apple?
Candy apple doesn't have chrome underneath the paint.

It doesn't have to be over chrome but many people do it, especially on wheels. It's becoming more and more popular.
They even offer kits to give a body panel a chrome look with paint before the candy coat. It can look great.
Example..
https://www.youtube.com/watch?v=LK0VZXrV5kI

or like this...

https://www.youtube.com/watch?v=wI8aPaHIclQ

Gotta love those Roval hubs. Pieces of art and way ahead of their time.