120 psi on 26x 1 3/8" tires?
#1
Standard Member
Thread Starter
Join Date: Apr 2009
Location: Brunswick, Maine
Posts: 4,350
Bikes: 1948 P. Barnard & Son, 1962 Rudge Sports, 1963 Freddie Grubb Routier, 1980 Manufrance Hirondelle, 1983 F. Moser Sprint, 1989 Raleigh Technium Pre, 2001 Raleigh M80
Liked 1,055 Times
in
524 Posts
120 psi on 26x 1 3/8" tires?
I need some new tires on the Sports, and happened upon the Bontrager T1's. My present (original?) Regency tires have a max. pressure of fifty-five psi. These new Bontragers have a psi of one hundred and twenty. What are your thoughts on running high-pressure on Westwood rims? Even if I preferred it, which I tend to doubt, would it be safe? Would it be safe to run 120 p.s.i. tires at 50 p.s.i (which I presently use)? I have taken the Sports on informal club rides with older riders, and the higher pressure would help me to get up the hills. I don't want a jarring ride quality, though. What is the thinking on these tires, and why are 26 x 1 3/8" (590) tires manufactured at road-tire psi?
https://www.trekbikes.com/us/en_US/e...olorCode=black
https://www.trekbikes.com/us/en_US/e...olorCode=black
__________________
"Chim-chiminey, chim-chiminey, chim-chim cheroo"
"Chim-chiminey, chim-chiminey, chim-chim cheroo"
#2
Insane Bicycle Mechanic
I doubt the 26 x 1 3/8” version is rated at 120psi. (The 700C version, maybe.) I’ve never seen a 26 x 1 3/8” rim with hooked beads, which are needed for such a high pressure tire.
__________________
Jeff Wills
Comcast nuked my web page. It will return soon..
Jeff Wills
Comcast nuked my web page. It will return soon..
Likes For Jeff Wills:
#3
Standard Member
Thread Starter
Join Date: Apr 2009
Location: Brunswick, Maine
Posts: 4,350
Bikes: 1948 P. Barnard & Son, 1962 Rudge Sports, 1963 Freddie Grubb Routier, 1980 Manufrance Hirondelle, 1983 F. Moser Sprint, 1989 Raleigh Technium Pre, 2001 Raleigh M80
Liked 1,055 Times
in
524 Posts
You are correct. Trek just confirmed that this size is rated from 70-100 psi. That still sounds a little bit strange for a 3-speed, though. I am not understanding what kind of bike this tire is designed for.
__________________
"Chim-chiminey, chim-chiminey, chim-chim cheroo"
"Chim-chiminey, chim-chiminey, chim-chim cheroo"
Last edited by 1989Pre; 05-10-23 at 09:28 AM.
#4
señor miembro
Join Date: Dec 2018
Location: Pac NW
Posts: 6,735
Bikes: '70s - '80s Campagnolo
Liked 6,997 Times
in
3,447 Posts
#5
Senior Member
Join Date: Oct 2014
Location: Portland, OR
Posts: 13,334
Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder
Liked 4,336 Times
in
2,790 Posts
But - tubed clincher wasn't a choice? I don't think I am the only one who still riders them. (Should I run out and buy a lifetime supply of tubes? A nitrogen gas filled freezer?))
#6
señor miembro
Join Date: Dec 2018
Location: Pac NW
Posts: 6,735
Bikes: '70s - '80s Campagnolo
Liked 6,997 Times
in
3,447 Posts
#7
Ride, Wrench, Swap, Race
Join Date: Jan 2010
Location: Northern California
Posts: 9,333
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
Liked 1,392 Times
in
926 Posts
There are tandems and perhaps loaded tourers riding on 26x1-3/8" tires, somebody had to make tires suitable for them!
Indicates a strong tire casing, so likely durable.
Indicates a strong tire casing, so likely durable.
Likes For dddd:
#8
Standard Member
Thread Starter
Join Date: Apr 2009
Location: Brunswick, Maine
Posts: 4,350
Bikes: 1948 P. Barnard & Son, 1962 Rudge Sports, 1963 Freddie Grubb Routier, 1980 Manufrance Hirondelle, 1983 F. Moser Sprint, 1989 Raleigh Technium Pre, 2001 Raleigh M80
Liked 1,055 Times
in
524 Posts
I skipped the Bontragers and committed to some N.O.S. vintage 590's, which are Michelin, made in England white-walls. I just did not want a harsh, high-pressure ride. Thanks for the suggestions, Jeff and Surfer.
__________________
"Chim-chiminey, chim-chiminey, chim-chim cheroo"
"Chim-chiminey, chim-chiminey, chim-chim cheroo"
Last edited by 1989Pre; 05-10-23 at 02:27 PM.
#9
Tinker-er
Join Date: Oct 2007
Location: Mid-Atlantic
Posts: 692
Bikes: 1956 Rudge Sports; 1983 Univega Alpina Uno; 1981 Miyata 610; 1973 Raleigh Twenty; 1994 Breezer Lightning XTR; V4 Yuba Mundo aka "The Schlepper"; 1987 Raleigh "The Edge" Mountain Trials; 1952 R.O. Harrison "Madison"; 1994 Concorde Aquila
Liked 443 Times
in
278 Posts
Sun offers the CR-18 in 590.
Likes For PhilFo: