Does stiffness really matter on the bike? (Page 3)

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TriRSquared

2010-10-29 12:37 PM

in reply to: #3182893

Champion

7347

SRQ, FL

Subject: RE: Does stiffness really matter on the bike?

AndrewMT - 2010-10-29 12:18 PM

Geometry doesn't neccessarily have to be different, but tube thickness would be. And dampening absolutly is a characteristic of material.

Tube thickness IS a change in geometry. See above for my reply about dampening.

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TriRSquared

2010-10-29 12:39 PM

in reply to: #3182922

Champion

7347

SRQ, FL

Subject: RE: Does stiffness really matter on the bike?

Experior - 2010-10-29 12:23 PM

And on #5, really you need to define 'miniscule'. As I'm sure you know, cyclists and tire companies have done studies of the crr of tires at various pressures, on various surfaces, and I, at least, find the differences to be enough to motivate me to take it into account when considering my tire pressure.

I'm not trying to say RR is not important. I'm saying that you can tune RR to be best for a give road condition. But when you ride on lots of different road conditions then the subtle changes become less important (not to say it's not important overall). Does that make sense? I'm talking about the delta, not the magnitude.

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AndrewMT

2010-10-29 12:46 PM

in reply to: #3183380

Elite

4235

Spring, TX

Subject: RE: Does stiffness really matter on the bike?

TriRSquared - 2010-10-29 12:37 PM

AndrewMT - 2010-10-29 12:18 PM

Geometry doesn't neccessarily have to be different, but tube thickness would be. And dampening absolutly is a characteristic of material.

Tube thickness IS a change in geometry. See above for my reply about dampening.

I hear what you're saying. When I think of geometry, I think angles and tube lengths.

My Race Log

TriRSquared

2010-10-29 1:02 PM

in reply to: #3183484

Champion

7347

SRQ, FL

Subject: RE: Does stiffness really matter on the bike?

AndrewMT - 2010-10-29 1:46 PM

TriRSquared - 2010-10-29 12:37 PM

AndrewMT - 2010-10-29 12:18 PM

Geometry doesn't neccessarily have to be different, but tube thickness would be. And dampening absolutly is a characteristic of material.

Tube thickness IS a change in geometry. See above for my reply about dampening.

I hear what you're saying. When I think of geometry, I think angles and tube lengths.

I understand. But geometry is the physical shape which includes thickness.

Good geeky thread you started here!

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Experior

2010-10-29 1:17 PM

in reply to: #3183400

Champion

7595

Columbia, South Carolina

Subject: RE: Does stiffness really matter on the bike?

TriRSquared - 2010-10-29 1:39 PM

Got it.

For training, I just pump the same every time and don't think more about it. For races, if I know the prevailing state of the road (smooth versus rough), I absolutely do think about what pressure would be best. All these little things add up.

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Jason N

2010-10-29 1:42 PM

in reply to: #3178572

Subject: RE: Does stiffness really matter on the bike?

NERDS!!!

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AndrewMT

2010-10-29 2:40 PM

in reply to: #3183653

Elite

4235

Spring, TX

Subject: RE: Does stiffness really matter on the bike?

TriRSquared - 2010-10-29 1:02 PM

AndrewMT - 2010-10-29 1:46 PM

TriRSquared - 2010-10-29 12:37 PM

AndrewMT - 2010-10-29 12:18 PM

Geometry doesn't neccessarily have to be different, but tube thickness would be. And dampening absolutly is a characteristic of material.

Tube thickness IS a change in geometry. See above for my reply about dampening.

I hear what you're saying. When I think of geometry, I think angles and tube lengths.

I understand. But geometry is the physical shape which includes thickness.

Good geeky thread you started here!

That was my hope!

My Race Log

Experior

2010-10-29 3:41 PM

in reply to: #3183929

Champion

7595