Tonight, Pcad was the TT CF Bullet of High Speed Death
#76
Texas Fight!
Join Date: Oct 2006
Location: Austin, TX
Posts: 2,023
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
FWIW, 8W is huge.
#77
Not obese just overweight
Join Date: Dec 2006
Location: Sonoma County, CA
Posts: 2,035
Bikes: Trek 7500fx, Cervelo Soloist
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I wouldn't say super huge. I know TTers that were solidly beat by others putting out 30 less watts but yeah in the grand scheme of things, it's not something to ignore if you're very competitive.
Here's another fairly recent summary at Velonews.
https://www.velonews.com/tech/report/...s/12493.0.html
Sure more testing is in order but this stuff has definitely dampened my enthusiasm for tubulars.
Here's another fairly recent summary at Velonews.
https://www.velonews.com/tech/report/...s/12493.0.html
Sure more testing is in order but this stuff has definitely dampened my enthusiasm for tubulars.
#78
Peloton Shelter Dog
Thread Starter
Not that this needs to be investigate at great depth YET AGAIN, but here is a link that I think sums things up nicely.
https://www.westwoodvelo.com/showthread.php?t=2190
Bottom line, the difference between my tubulars and the very best in rolling resistanc eclinchers is about 8 watts on impressive road surfaces. As the road surface gets more testy, the difference becomes less. I will stick with tubulars.
https://www.westwoodvelo.com/showthread.php?t=2190
Bottom line, the difference between my tubulars and the very best in rolling resistanc eclinchers is about 8 watts on impressive road surfaces. As the road surface gets more testy, the difference becomes less. I will stick with tubulars.
#79
Texas Fight!
Join Date: Oct 2006
Location: Austin, TX
Posts: 2,023
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
They're able to do that because of those 8W. You can actually achieve something like a 15W loss on tires over some. 15W in tires, 30W in wheels, 15W on a skinsuit, 15W on an aero helmet, 30W on an optimized aero position. It adds up -- fast. That's 105W right there. Granted, I was being a tad generous on the numbers, but still.
I wouldn't say super huge. I know TTers that were solidly beat by others putting out 30 less watts but yeah in the grand scheme of things, it's not something to ignore if you're very competitive.
Here's another fairly recent summary at Velonews.
https://www.velonews.com/tech/report/...s/12493.0.html
Sure more testing is in order but this stuff has definitely dampened my enthusiasm for tubulars.
Here's another fairly recent summary at Velonews.
https://www.velonews.com/tech/report/...s/12493.0.html
Sure more testing is in order but this stuff has definitely dampened my enthusiasm for tubulars.
#80
Peloton Shelter Dog
Thread Starter
Fudging TT watt #'s RULES.
#81
Not obese just overweight
Join Date: Dec 2006
Location: Sonoma County, CA
Posts: 2,035
Bikes: Trek 7500fx, Cervelo Soloist
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
They're able to do that because of those 8W. You can actually achieve something like a 15W loss on tires over some. 15W in tires, 30W in wheels, 15W on a skinsuit, 15W on an aero helmet, 30W on an optimized aero position. It adds up -- fast. That's 105W right there. Granted, I was being a tad generous on the numbers, but still.
Aerodynamics was a big difference in the case I mentioned. Not only posture but the faster rider showed up with something like this without any base bar and simply parted the wind like he was coated in Astroglide. You can steer at low speed by grabbing onto the edges of the elbow rests.
#82
Texas Fight!
Join Date: Oct 2006
Location: Austin, TX
Posts: 2,023
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I refuse to lose the basebar, but yeah.
I'm really not fudging by that much, Pcad. That's why I can hang with riders in higher categories in TT's.
I'm really not fudging by that much, Pcad. That's why I can hang with riders in higher categories in TT's.
#83
Peloton Shelter Dog
Thread Starter
This has gotten far too technical. I'm afraid it's time to shut up and ride your bike. Even if it's a way high tech/aero wheeled/skinsuited/aero helmeted/SRM equipped/wind-tunnel tested bike.
God this does get ridiculous. Why do I love it so much? I am a total mental case I must say.
But I am not alone.
God this does get ridiculous. Why do I love it so much? I am a total mental case I must say.
But I am not alone.
#84
Texas Fight!
Join Date: Oct 2006
Location: Austin, TX
Posts: 2,023
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Haha, don't worry, I still ride my bike...more than most, I think.
#85
Peloton Shelter Dog
Thread Starter
#86
Texas Fight!
Join Date: Oct 2006
Location: Austin, TX
Posts: 2,023
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I'm recovering right now. Only 6 hours a week on the bike = lame. Next week I go back to 11.5. Back during base time, it was more like 13. Next year, all of those will go up.
#87
Not obese just overweight
Join Date: Dec 2006
Location: Sonoma County, CA
Posts: 2,035
Bikes: Trek 7500fx, Cervelo Soloist
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Just learn to laugh like our friend Ed... Maybe Pat Sajak doesn't have a million friends?! It's difficult to say!
#88
Texas Fight!
Join Date: Oct 2006
Location: Austin, TX
Posts: 2,023
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Duh! He has 2 million, like me.
#89
Senior Member
Join Date: Jun 2003
Posts: 18,138
Bikes: 2 many
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 1266 Post(s)
Liked 323 Times
in
169 Posts
Not that this needs to be investigate at great depth YET AGAIN, but here is a link that I think sums things up nicely.
https://www.westwoodvelo.com/showthread.php?t=2190
Bottom line, the difference between my tubulars and the very best in rolling resistanc eclinchers is about 8 watts on impressive road surfaces. As the road surface gets more testy, the difference becomes less. I will stick with tubulars.
https://www.westwoodvelo.com/showthread.php?t=2190
Bottom line, the difference between my tubulars and the very best in rolling resistanc eclinchers is about 8 watts on impressive road surfaces. As the road surface gets more testy, the difference becomes less. I will stick with tubulars.
#90
Resident Alien
Join Date: Jul 2007
Location: Location, location.
Posts: 13,089
Mentioned: 158 Post(s)
Tagged: 0 Thread(s)
Quoted: 349 Post(s)
Likes: 0
Liked 10 Times
in
6 Posts
It's probably 20:1 tubulars vc. clinchers on TT bikes.
Good enough for me.
#91
Not obese just overweight
Join Date: Dec 2006
Location: Sonoma County, CA
Posts: 2,035
Bikes: Trek 7500fx, Cervelo Soloist
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I imagine we'll see more testing and very probably some innovations made to gluing compounds, rim shapes and/or tires to address the issue. There's an engineering problem in here for certain and brains applying themselves in a positive direction are not going to let that stand. (There's probably a little money in there as incentive for good innovators.) You can probably bet that a couple bright people at Zipp have this high on their radar.