other a bumpy ride and maybe expedient suspension/drivetrain wear, are there any reasons why you would not want solid ( solid rubber, tubeless) tires on a bicycle?
It would probably be horribly bumpy. That air acts as a damper. You will also have a much larger MOI.
no sarcasm, i sincerely meant that i positively would not want a bigger MOI.Ride my Carbon fiber bike, and ride my steel frame bike, and you will see the difference in the damping capacity instantly. You do notice the road vibrations that get transmitted through the bike. I would suspect a solid tire would transfer more energy, being one solid piece, than would a tire filled with air that can deform more readily.
Ps, why the sarcasm?
wheels are on a roadbike, don't need tractionAside from comfort, wear and protection, there's the issue of traction too...
Well, I'm sure it probably does. In an ideal situation you want a solid tire running along a track with cogs on it. Any deformation will result in energy losses, but you made a big assumption when you said comfort aside. You cant put comfort aside on a vehicle with people in it. Even without people, that vibration will tear things appart and cost money. Everything in engineering is a tradeoff.
I like having traction between my road bike and the ground. There's no way you're going to turn without traction. Roads are not banked specifically to road bikes.
I know what your OP implied, but I am pointing out to you the magnitude of your implication in an engineering sense. You are taking the main reason for having non-rigid tires and ignoring it.
How about I ask why airplanes have big wings but ignore the effects of air? Aint gonna work.
are you seriously saying i should replace my entire wheel with a 27cm cog? and build a road with teeth?When you have a cog type system on your wheels and on the ground, almost all the energy gets transfered from the axil to moving forward. You dont have to worry about traction or slip. There is very little deformation, and loss of energy, between the gears. That would be the most ideal 'solid' tire.
If you try to make a 'solid' tire without any gears on it, you wont be able to take any turns that dont have a bank built into them.
Well, since I have absolutely no idea what you guys are talking about anymore, I went back and googled "bib mousse" +"bicycle tire", and got some hits. Here is the solid foam bib mousse insert info for Michelin MTB tires.
http://shopping.yahoo.com/s:Cycling:4168-Brand=Michelin:4492-Sales & Deals=All Sale Items
Does that help with the OP?
Hmmm, thats a good point. Give me some time to think about that. The solid tire might have grip, but let me double check. I'm having issue seeing how a solid tire would be able to transfer energy to the road. All tires have some finite amount of deformation, and I think this deformation is critical in moving forwards.
But F=u*N at the macroscopic level. When you have a perfectly rigid disk, you will have an infinitely thin line of contact area between the disk and the ground, and possibly F != u*N anymore.
I dont understand what you mean by 'cause' friction. Im saying without deformation, I dont think you will be able to produce enough friction to move forwards.
Did you scroll down the link?