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Tubes are faster

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Tubes are faster

Old 09-16-22, 05:21 PM
  #26  
Dean V
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I am just impressed that he could average 23mph with 200W being a fairly big guy in a not very aero position.
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Old 09-17-22, 05:23 AM
  #27  
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I’m still stuck on the grammar… shouldn’t it be plural “Tubes” vs “Tube’s”?
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Old 09-17-22, 08:24 AM
  #28  
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That video went from talking about tubes and tubeless to investing in contemporary art? WTF!

Anyways, I generally like tubeless once setup, but for hill climbing I do prefer TPU tubes and clinchers.
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Old 09-17-22, 08:45 AM
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Originally Posted by Branko D View Post
When you use normal hooked tubeless rims and just ride tubeless at 90-100 psi (or whatever is appropriate for your weight) tubeless tests faster than any tube type bar latex in every single test, all things being equal.
As soon as you add sealant to a tubeless tire, the rolling resistance advantage changes. A clincher with latex or TPU tube has lower rolling resistance than a similar tubeless with sealant. At the same pressures.
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Old 09-17-22, 08:52 AM
  #30  
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Originally Posted by jonathanf2 View Post
That video went from talking about tubes and tubeless to investing in contemporary art? WTF!

Anyways, I generally like tubeless once setup, but for hill climbing I do prefer TPU tubes and clinchers.
Don't confuse content with advertising. Of course with GCN et al it's combined.

I still prefer latex but TPU is certainly a fine option. I have yet to drink the tubeless kool-aid.
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Old 09-17-22, 08:58 AM
  #31  
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I thought the video was pretty well done. He obviously spent quite a bit of time with camera angles, different shots and editing. I wish he had done the tests using the same tire model tubeless versus tubed tires though. Especially since he worked at a bike shop I would think he could access the tires.

He made good arguments for why he preferred tubes and running at higher pressures. I also thought he did a pretty good job describing how the ride quality was the different between the set ups.

Did he convince me one was faster than the other? No, but I liked the presentation
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Old 09-17-22, 09:36 AM
  #32  
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Originally Posted by Symox View Post
I thought the video was pretty well done. He obviously spent quite a bit of time with camera angles, different shots and editing. I wish he had done the tests using the same tire model tubeless versus tubed tires though. Especially since he worked at a bike shop I would think he could access the tires.

He made good arguments for why he preferred tubes and running at higher pressures. I also thought he did a pretty good job describing how the ride quality was the different between the set ups.

Did he convince me one was faster than the other? No, but I liked the presentation
I agree. I thought his presentation was good. Kind of felt like you were riding with him, then shooting the sh** in the parking lot afterwards talking tires.
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Old 09-17-22, 09:45 AM
  #33  
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As a 5'8" 200lbish rider, with that weight somewhat concentrated, squishy feeling tires are not good. When you get out of the saddle to climb, most of that weight shifts(or at least feels like it) over the front wheel. Suddenly it feels like you're front tire's going flat or the brake is dragging. For me the feeling gets worse as the rim/tire gets wider.
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Old 09-17-22, 11:29 AM
  #34  
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Originally Posted by terrymorse View Post
As soon as you add sealant to a tubeless tire, the rolling resistance advantage changes. A clincher with latex or TPU tube has lower rolling resistance than a similar tubeless with sealant. At the same pressures.
Latex offers the least rolling resistance, yes. TPU is a bit worse than latex, and ends up roughly on par or worse than tubeless.

I've ridden latex tubes for a while with tube type GP5000 tires, the decision to go to tubeless was a deliberate sacrifice of a small amount of rolling resistance to get the puncture resistance and comparatively less faff of tubeless (I've even toyed with airliners which really do work as a run-flat system, but now I only do it on my commute bike because honestly the tubeless GP5000s have had one puncture in 6000km and even that held a rideable enough amount of pressure to get home, without changing tubes in the dark).

The differences in the video, anyway, are due to the pressure difference. You're going to be hard pressed to measure a speed difference in the wild between latex, TPU and tubeless (with, say, 30ml of sealant) at the same tire pressure because we're talking about differences of about 0,1 W per tire at 100 psi.

Last edited by Branko D; 09-17-22 at 11:42 AM.
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