New Mad Fiber Carbon Wheel Test

Everything about building wheels, glueing tubs, etc.
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thatdkid
Posts: 77
Joined: Thu Jul 26, 2012 4:15 am
Location: Utah
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by thatdkid

I would like to see them run all the major brands over this this machine. For those of us those of us that are not experts, I would like to see how others compare? Could be that no others can do it... Or maybe they all can?

http://beyonddork.blogspot.com/2013/05/carbon-fiber-road-wheel-test.html

Butcher
Shop Owner
Posts: 837
Joined: Sun Jan 03, 2010 4:58 am

by Butcher

Too bad the side loads are not in a place that is going to happen in real life. Should have it at the point of contact on the roller. Not to say that this wheel is good or bad, but just another way useless marketing will sell stuff.

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WMW
in the industry
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Joined: Sun Jul 29, 2012 2:59 pm
Location: Ruidoso, NM

by WMW

I have to agree... the sideload needs to be applied at the bottom to be relevant.
formerly rruff...

thisisatest
Shop Owner
Posts: 1980
Joined: Sat Jun 13, 2009 4:02 am
Location: NoVA/DC

by thisisatest

Another way of doing it would be to lean the wheel to the side a bit, maybe 30degrees max (or whatever the max is that someone observes an calculates in real use while going straight-like in a sprint).
Thing is, in real life, the side loads tend to be cyclic (pun intended), so then you'd want the wheel's inclination to maybe start at zero, and swing to one side and then the other slowly. But all of a sudden, it's hard to get a clear picture of what's going on when the wheel finally DOES fail.
So many variables...

mjduct
Posts: 662
Joined: Tue Dec 27, 2011 2:19 pm

by mjduct

dumbest test ever...

when on earth do you ever ride 50 mph over inch high nubs while a side roller is applied 90 degrees from the contact point of the ground...

KLabs
Posts: 380
Joined: Wed Dec 01, 2010 4:29 am

by KLabs

This test is closer/better, especially as the testing is being done with the tyre and tube fitted.
Not certain how well it is mimicking Torque effects and it still doesn't flip flop exactly like a sprinter/climber but closer ... nice machine :)

http://youtu.be/c7RJpf_KQo4

thanks KL :)

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