Comments on: An aerodynamic concept bike

By: Paul Presti

Paul Presti — Tue, 01 Jan 2013 01:01:29 +0000

Framework for a bike with aerodynamics is necessary but what about the rider?. Unless he is paper thin………nothing is 100% dynamic

By: Alex

Alex — Fri, 29 Oct 2010 03:50:57 +0000

I worked with the local university racing team optimizing aerodynamics for an open wheel race car and a UAV. These aren’t bikes, but I think I can say with 100% accuracy that this is a very poor aerodynamic design.

By: Konstantin Y.

Konstantin Y. — Mon, 05 Jul 2010 20:02:59 +0000

morning,
What kind of functional differences does placing the cog outside the frame produce? Why isn’t it done much right now? What impact does it have on the force distribution into the rear triangle?

Thank You,

Konstantin

By: Mike

Mike — Wed, 30 Jun 2010 18:15:41 +0000

Anyone want to take a stab at the rationale for the spoked wheels? Seems like they’d be pretty floppy with a hub flange that narrow, and I’m not sure why you wouldn’t just use a disc.

From what I can tell this guy is a furniture designer, not sure why he’s wasting time on trying to create an aero design without incorporating some engineering knowledge or computer modeling.

By: Ross Nicholson

Ross Nicholson — Wed, 30 Jun 2010 14:35:44 +0000

I concur, aerodynamic bicycles are pointless exercises if the rider is ignored.

By: Stones Cry Out - If they keep silent… » Things Heard: e125v3

Stones Cry Out - If they keep silent… » Things Heard: e125v3 — Wed, 30 Jun 2010 14:21:08 +0000

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By: GET YOUR CONCEPT ON « FIXIE GC

GET YOUR CONCEPT ON « FIXIE GC — Wed, 30 Jun 2010 06:45:05 +0000

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By: Andy

Andy — Wed, 30 Jun 2010 03:19:50 +0000

A single, mostly round, tube can hold a lot of force in any direction. This design has narrow tubes, which will result in a very flexible frame unless the tube walls are much thicker, adding a lot of weight. By trying to route air through the frame, it now has to hit more pieces in more places, causing turbulent air patterns which will hurt the aerodynamics.

By: Andrew

Andrew — Tue, 29 Jun 2010 22:34:24 +0000

Agreed, Billy T – the real innovation is when you incorporate features into the bike design that integrate with the rider to smooth out airflow. Certainly easier said than done, but also why Mike Burrows’ recumbent designs are so successful.

I do think that this is an interesting concept….not sure if it makes a great deal of structural sense (seems like it would be weakest laterally and stiffest vertically, which is not really what you want…), but at least it’s worth exploring.

By: Billy T

Billy T — Tue, 29 Jun 2010 20:32:02 +0000

I’ve always wondered why designers work to reduce bike drag when the rider’s drag seems to be much greater, and it can’t be reduced much. Would a vented frame really pay off on the track?