Going back to 23/25 from 28/30...?
#176
Klaatu..Verata..Necktie?
Join Date: May 2007
Location: SF Bay Area
Posts: 17,990
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: 10442 Post(s)
Liked 11,916 Times
in
6,102 Posts
... I think this has been known and accepted for quite some time. Cannondale frames were famously stiff, with their large diameter tubing. And this was used as one of the selling points, along with the lighter weight of the frame. If efficiency is your goal, and you feel like a stiff frame will actually contribute significantly to the efficiency of your rides, I can't argue with that. I am inherently inefficient in so many ways in life that a list would take up too much space.
"Love. Who can explain 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
#177
Senior Member
Join Date: Dec 2020
Location: Wake Forest, NC
Posts: 5,795
Bikes: 1989 Cinelli Supercorsa
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 3514 Post(s)
Liked 2,927 Times
in
1,776 Posts
Likes For smd4:
#178
just another gosling
Join Date: Feb 2007
Location: Everett, WA
Posts: 19,539
Bikes: CoMo Speedster 2003, Trek 5200, CAAD 9, Fred 2004
Mentioned: 115 Post(s)
Tagged: 0 Thread(s)
Quoted: 3891 Post(s)
Liked 1,940 Times
in
1,385 Posts
#179
Senior Member
Join Date: Dec 2020
Location: Wake Forest, NC
Posts: 5,795
Bikes: 1989 Cinelli Supercorsa
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 3514 Post(s)
Liked 2,927 Times
in
1,776 Posts
They’re Veloflex Master 23s. I think someone here mentioned the model name may have changed (Corsa Race?). I got them online; not sure what the site’s name was.
Interestingly, the Veloflex website says I’m running my tires five pounds below the max!
Interestingly, the Veloflex website says I’m running my tires five pounds below the max!
Last edited by smd4; 03-16-24 at 06:21 PM.
#180
Senior Member
Join Date: Oct 2013
Location: Mich
Posts: 7,397
Bikes: RSO E-tire dropper fixie brifter
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 2,981 Times
in
1,921 Posts
With non competitive road cyclists, I'm pretty sure we mostly tend to aim for comfort, durability, & speed. So finding that sweet combo that does the job without going bankrupt is how I'd expect marketing to align.
__________________
-Oh Hey!
-Oh Hey!
#181
Junior Member
Daaaamn - do I dare enter this thread without a bodyguard?
I fit tubeless 32's on the front of my CSI, and 30's on the back, because that's the biggest that fit. Tire pressure is the thumb test, and if more than ~t.h.i.s.~ much deflection, then more air. How much more, you ask? ~T.H.I.S.~ much more.
I fit tubed 28's on the front, and 28's on the back of my Centurion/CInelli, because that's what I have on hand. Tire pressure is thumb test, etc, etc...
Not gonna tell ya what I use on my Mongoose Cipressa Ti, nor my Serotta Concours - They're titanium so that's classified!
Daaaamn - it's only air and rubber people!
I fit tubeless 32's on the front of my CSI, and 30's on the back, because that's the biggest that fit. Tire pressure is the thumb test, and if more than ~t.h.i.s.~ much deflection, then more air. How much more, you ask? ~T.H.I.S.~ much more.
I fit tubed 28's on the front, and 28's on the back of my Centurion/CInelli, because that's what I have on hand. Tire pressure is thumb test, etc, etc...
Not gonna tell ya what I use on my Mongoose Cipressa Ti, nor my Serotta Concours - They're titanium so that's classified!
Daaaamn - it's only air and rubber people!
#182
Senior Member
Join Date: Dec 2019
Location: South Shore of Long Island
Posts: 2,800
Bikes: 2010 Carrera Volans, 2015 C-Dale Trail 2sl, 2017 Raleigh Rush Hour, 2017 Blue Proseccio, 1992 Giant Perigee, 80s Gitane Rallye Tandem
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1088 Post(s)
Liked 1,026 Times
in
723 Posts
I've never fully gone the whole wider is better though I've moved somewhat wider. I can remember starting with 19c tires and I do have some left over 23s that are now just dedicated for track use as older tires wear out. But I've found that 25c seems to be my sweet spot. I tried some 27c tires and just found that they felt sluggish/heavy. Currently many of the wheels on mine and the kid's bikes are 19mm internal so the Michelin Pro 25c on my oldest's track bike measures 28.4mm, within .2mm of the external width of the carbon rims she's running. Her road bike has conti 5000s in 25c and it measures a little over 26mm, while my bike this week has 25c challenge elites that measure 27mm on velocity ailerons. I've also used the silca site to get an idea of tire pressure based on rims and they're recommendation was 82/80 for her and 85/83 for me so that's what I run in them. I have to say that for me the ride can still be noticeably harsh over rough pavement, did a circuit race this weekend that had a lot of poorly filled potholes and the ride could be jarring even at this pressure, which is surprising since I run a steel frame. Guess I'm not as tough as I was at 130psi in a 20c tire on Albany streets. Maybe the sluggishness is in my head, I do have to admit the 25c with 85/83psi feels every bit as fast as those older tires but I'm just not fully sold on going still wider. Don't know why anyone would want to still run narrower than 23c.