Ear protection when pumping tires
07-06-22, 12:14 PM
#26
Senior Member
You don't need to pump to such high pressures, and there extreme stresses at the contact patch are distributed over more area, which is good for both durability and wear life.
Spring rate against a flat surface doesn't necessarily scale the same as spring rate against narrower deflectors.
https://silca.cc/blogs/silca/part-2-...tiffer-harsher
Unfortunately there's not a lot of data out there on how breakpoint pressure scales across sizes of similarly-built tires.
https://silca.cc/blogs/silca/part-2-...tiffer-harsher
Unfortunately there's not a lot of data out there on how breakpoint pressure scales across sizes of similarly-built tires.
Likes For icemilkcoffee:
07-06-22, 12:17 PM
#29
Guest
Join Date: Sep 2020
Posts: 2,888
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 1346 Post(s)
Liked 3,270 Times
in
1,439 Posts
07-06-22, 12:17 PM
#30
Senior Member
Join Date: Sep 2007
Location: Far beyond the pale horizon.
Posts: 14,259
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quoted: 4245 Post(s)
Liked 1,350 Times
in
936 Posts
For all that weight, you really should be using wider tires.
Given your proven "expertise", this opinion is very credible. /s
Last edited by njkayaker; 07-06-22 at 12:23 PM.
07-06-22, 12:18 PM
#31
Senior Member
Join Date: Dec 2020
Location: Wake Forest, NC
Posts: 5,764
Bikes: 1989 Cinelli Supercorsa
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 3496 Post(s)
Liked 2,911 Times
in
1,766 Posts
Thank you. I'm not racing anyone, so "speed" isn't an issue. Neither is road vibration.
07-06-22, 12:19 PM
#33
Klaatu..Verata..Necktie?
Join Date: May 2007
Location: SF Bay Area
Posts: 17,913
Bikes: Litespeed Ultimate, Ultegra; Canyon Endurace, 105; Battaglin MAX, Chorus; Bianchi 928 Veloce; Ritchey Road Logic, Dura Ace; Cannondale R500 RX100; Schwinn Circuit, Sante; Lotus Supreme, Dura Ace
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 10397 Post(s)
Liked 11,859 Times
in
6,072 Posts
Regarding whether 23s at 140 psi "work" - a lot of things "work". Carburetors and points/condenser ignition systems "work", but EFI and electronic ignition work better. Cathode ray tubes "work" as televisions, but LED screens work better. Burning wood "works" to heat a house, but more modern methods work better.
So, yeah, 23s at 140 psi "work", but wider tires at lower pressure will likely be faster and more comfortable, as well as longer wearing and less prone to pinchflatting. You pays yer money and you takes yer choice.
So, yeah, 23s at 140 psi "work", but wider tires at lower pressure will likely be faster and more comfortable, as well as longer wearing and less prone to pinchflatting. You pays yer money and you takes yer choice.
__________________
"Don't take life so serious-it ain't nohow permanent."
"Everybody's gotta be somewhere." - Eccles
"Don't take life so serious-it ain't nohow permanent."
"Everybody's gotta be somewhere." - Eccles
Likes For genejockey:
07-06-22, 12:20 PM
#34
Tragically Ignorant
Join Date: Jun 2018
Location: New England
Posts: 15,613
Bikes: Serotta Atlanta; 1994 Specialized Allez Pro; Giant OCR A1; SOMA Double Cross Disc; 2022 Allez Elite mit der SRAM
Mentioned: 62 Post(s)
Tagged: 0 Thread(s)
Quoted: 8186 Post(s)
Liked 9,098 Times
in
5,054 Posts
Good lord, you start a thread about not being able to pump up your tires because they have so many patches you think they're going to blow and you post this?
You're obviously not riding the 23s just fine or you wouldn't have to ask this very weird question about ear protection.
Likes For livedarklions:
07-06-22, 12:21 PM
#35
Klaatu..Verata..Necktie?
Join Date: May 2007
Location: SF Bay Area
Posts: 17,913
Bikes: Litespeed Ultimate, Ultegra; Canyon Endurace, 105; Battaglin MAX, Chorus; Bianchi 928 Veloce; Ritchey Road Logic, Dura Ace; Cannondale R500 RX100; Schwinn Circuit, Sante; Lotus Supreme, Dura Ace
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 10397 Post(s)
Liked 11,859 Times
in
6,072 Posts
07-06-22, 12:24 PM
#36
Tragically Ignorant
Join Date: Jun 2018
Location: New England
Posts: 15,613
Bikes: Serotta Atlanta; 1994 Specialized Allez Pro; Giant OCR A1; SOMA Double Cross Disc; 2022 Allez Elite mit der SRAM
Mentioned: 62 Post(s)
Tagged: 0 Thread(s)
Quoted: 8186 Post(s)
Liked 9,098 Times
in
5,054 Posts
07-06-22, 12:28 PM
#37
Senior Member
Join Date: Sep 2007
Location: Far beyond the pale horizon.
Posts: 14,259
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quoted: 4245 Post(s)
Liked 1,350 Times
in
936 Posts
Note that most of the riders are using tubular tires.
https://www.thegeekycyclist.com/pro-...oad-bike-tires
Like the previous years, the majority of the teams will be riding 25c tubular tires with pressure up to 160psi, depending on other factors such as road surface and rider weight among others.
This year, we’re seeing a number of teams running tubeless and clinchers which is a departure from the general consensus that tubulars are preferred for racing.
This year, we’re seeing a number of teams running tubeless and clinchers which is a departure from the general consensus that tubulars are preferred for racing.
As of Friday, four of the six road stages thus far in the 2017 Tour de France have been won on 26mm tubulars. While 23mm was the pro standard not so long ago, this year 20 teams are using 25mm tires for non-time trial stages, and the other two Specialized-sponsored teams are using 26mm rubber.
Last edited by njkayaker; 07-06-22 at 01:05 PM.
07-06-22, 12:30 PM
#38
Senior Member
Join Date: Dec 2020
Location: Wake Forest, NC
Posts: 5,764
Bikes: 1989 Cinelli Supercorsa
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 3496 Post(s)
Liked 2,911 Times
in
1,766 Posts
Like the previous years, the majority of the teams will be riding 25c tubular tires with pressure up to 160psi, depending on other factors such as road surface and rider weight among others.
And the bikes are much stiffer these days, with the carbon-fiber frames, especially the aero frames, and the aero rims — like when you're running like a 50mm-section rim, which is quite deep — all that stuff is stiff, so the lower pressure helps provide more comfort for the rider.
I'm riding a steel framed bike, so, for me, 23C at 140 psi works. If it doesn't work for you, that's fine.
Last edited by smd4; 07-06-22 at 12:40 PM.
07-06-22, 12:33 PM
#39
Klaatu..Verata..Necktie?
Join Date: May 2007
Location: SF Bay Area
Posts: 17,913
Bikes: Litespeed Ultimate, Ultegra; Canyon Endurace, 105; Battaglin MAX, Chorus; Bianchi 928 Veloce; Ritchey Road Logic, Dura Ace; Cannondale R500 RX100; Schwinn Circuit, Sante; Lotus Supreme, Dura Ace
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 10397 Post(s)
Liked 11,859 Times
in
6,072 Posts
This claim is so vague, it's meaningless. And comparing your weight with professional riders is absurd.
Note that most of the riders are using tubular tires.
https://www.thegeekycyclist.com/pro-...oad-bike-tires
https://www.bikeradar.com/features/t...our-de-france/
Note that most of the riders are using tubular tires.
https://www.thegeekycyclist.com/pro-...oad-bike-tires
https://www.bikeradar.com/features/t...our-de-france/
Big Gravel sent their leg-breakers to all the cycling news outlets, to tell them, "Nice cycling website you got here. It'd be a shame if something was to happen to it...."
__________________
"Don't take life so serious-it ain't nohow permanent."
"Everybody's gotta be somewhere." - Eccles
"Don't take life so serious-it ain't nohow permanent."
"Everybody's gotta be somewhere." - Eccles
Last edited by genejockey; 07-06-22 at 12:42 PM.
Likes For genejockey:
Likes For njkayaker:
07-06-22, 12:42 PM
#41
Senior Member
Their equipment is visible in plain sight. You're claiming that commentators, support staff, racers, and basically the entire French public are part of a conspiracy being controlled by, I guess, American gravel race organizers who for some reason want to help tire manufacturers sell product that costs more to make and lasts longer?
Likes For HTupolev:
07-06-22, 12:42 PM
#42
Shawn of the Dead
Join Date: Apr 2021
Posts: 578
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 277 Post(s)
Liked 448 Times
in
216 Posts
Comfort isn't an issue ....got it. I'm not racing anyone or anything either. I just like better performance and more comfort. Wider tires and lower pressures work excellent in this regard.
07-06-22, 12:43 PM
#43
Senior Member
Join Date: Dec 2020
Location: Wake Forest, NC
Posts: 5,764
Bikes: 1989 Cinelli Supercorsa
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 3496 Post(s)
Liked 2,911 Times
in
1,766 Posts
Their equipment is visible in plain sight. You're claiming that commentators, support staff, racers, and basically the entire French public are part of a conspiracy being controlled by, I guess, American gravel race organizers who for some reason want to help tire manufacturers sell product that costs more to make and lasts longer?
07-06-22, 12:44 PM
#44
Senior Member
Join Date: Dec 2020
Location: Wake Forest, NC
Posts: 5,764
Bikes: 1989 Cinelli Supercorsa
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 3496 Post(s)
Liked 2,911 Times
in
1,766 Posts
07-06-22, 12:46 PM
#46
Senior Member
Join Date: Dec 2020
Location: Wake Forest, NC
Posts: 5,764
Bikes: 1989 Cinelli Supercorsa
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 3496 Post(s)
Liked 2,911 Times
in
1,766 Posts
Like the previous years, the majority of the teams will be riding 25c tubular tires with pressure up to 160psi, depending on other factors such as road surface and rider weight among others.
07-06-22, 12:53 PM
#48
Senior Member
Join Date: Dec 2020
Location: Wake Forest, NC
Posts: 5,764
Bikes: 1989 Cinelli Supercorsa
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 3496 Post(s)
Liked 2,911 Times
in
1,766 Posts
Likes For smd4:
07-06-22, 12:56 PM
#49
Klaatu..Verata..Necktie?
Join Date: May 2007
Location: SF Bay Area
Posts: 17,913
Bikes: Litespeed Ultimate, Ultegra; Canyon Endurace, 105; Battaglin MAX, Chorus; Bianchi 928 Veloce; Ritchey Road Logic, Dura Ace; Cannondale R500 RX100; Schwinn Circuit, Sante; Lotus Supreme, Dura Ace
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 10397 Post(s)
Liked 11,859 Times
in
6,072 Posts
We-e-elll.......
Roling resistance and absorbing bumps are measurable things. Your preference may be otherwise, but it's not like you're operating under a different set of physical laws.
But, ride what you want. I know I do - everything from 22mm tubs to 28mm clinchers.
Roling resistance and absorbing bumps are measurable things. Your preference may be otherwise, but it's not like you're operating under a different set of physical laws.
But, ride what you want. I know I do - everything from 22mm tubs to 28mm clinchers.
__________________
"Don't take life so serious-it ain't nohow permanent."
"Everybody's gotta be somewhere." - Eccles
"Don't take life so serious-it ain't nohow permanent."
"Everybody's gotta be somewhere." - Eccles
07-06-22, 12:57 PM
#50
Senior Member
Join Date: Sep 2007
Location: Far beyond the pale horizon.
Posts: 14,259
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quoted: 4245 Post(s)
Liked 1,350 Times
in
936 Posts
Larry said "narrow" (not "pretty narrow") but who really knows what he meant. And the TdF riders are mostly using tubular tires. And the riders are whole-lot lighter.
Larry's claim is meaningless nonsense. Don't dig through that pile to try to find nuggets of meaning.
Larry's claim is meaningless nonsense. Don't dig through that pile to try to find nuggets of meaning.
Likes For njkayaker: