Orange Crush
Posts:4499
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| 04/23/2014 09:21 AM |
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Posted By Keith Jackson on 04/23/2014 06:38 AM
21mm?!?!? I have not gone that small since the mid 90s.
I was just observing on FB that the steel bike retro grouches should go 20 for ol time sake
23 is my narrowest, 25 widest for road bikes although latter is closer to 27 when measured. The 23 is in fact a 23.
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jacques_anquetil
Posts:245
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| 04/23/2014 10:03 AM |
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after flatting out on 23mm at a crucial moment a road race last summer i am done with that size.
i'm with hoshie. up to 25s for all road bike wheels: Michelin Pro Race 4 (which is almost a 28) on C24s, very cushy; and Continental GP4000 on the C50s.
for the cyclocross: Panaracer Pasellas 32s at 60psi is awesome for gravel grinding; Michelin Muds for clincher training; nothing beats Dugast Typhoons for racing tubulars but dang it if they don't last longer than 12-15 races.
29'r: again, nothing beats volume with WTB ExiWolf 2.3s.
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Pin0Q0
Posts:229
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| 04/23/2014 10:22 AM |
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It's not the width that causes flats, it's the PSI. Ride on 110 psi and hit a pot hole and you are doomed with a flat and maybe a dent in your rim. I won't ride anything less than 130 psi on 23 and 150 on 21s. Your a$$ will get use to it after a couple of rides. Back in the day I raced on Rolf tubular @180 psi, .....but they were 25s  |
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Master50
Posts:340
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| 04/23/2014 12:48 PM |
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Posted By Kameron Kameron on 04/23/2014 10:22 AM
It's not the width that causes flats, it's the PSI. Ride on 110 psi and hit a pot hole and you are doomed with a flat and maybe a dent in your rim. I won't ride anything less than 130 psi on 23 and 150 on 21s. Your a$$ will get use to it after a couple of rides. Back in the day I raced on Rolf tubular @180 psi, .....but they were 25s
I am migrating to 25s on My Fenderless bike. Currently use Vittoria open corsa. 23 on front and 25 in the rear at 100 psi for my 170 pounds. I have not pinched a tube for years. I went from Conti to Vredestien to Vittoria where I am very happy. They last me 2 seasons and one reason I prefer the Vittoria is they maintain their grip even as the tire ages and hardens. My Conti experience was pretty good except the rubber got harder the second year and typically would lose wet traction first. the Vredestien also started out very good with great cornering and decent wet weather but by mid second year the rubber was rotting such that the tire would get full of little tiny bits of sand and glass to a point where the tubes would get very slow leaks.
Going forward new wheels will all be tubeless as I think that is the surest way to reduce flats and not go back to tubulars. I really never enjoyed tubulars as a total experience. They were nice when full of air but the hassles and expense of flats pretty much ruined that experience.
On my MTB I like Shwalbe Rocket Ron in 29er and the tubeless ready tires are a great compromise between a full tubeless tire and a non tubeless tire with lots of sealant. the Sidewalls are a little more air tight but requires sealant to fully keep the air in, Good weight compromise with more sidewall cut resistance.
Like the Kenda Navigals for the 26 I gave my wife.
Winter bikes get 23s for fenders and what ever cheap folder with a puncture resistant strip. Currently using Shwalbe Rubino tires because I was getting them cheap. No flats this winter on them either. |
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dkri
Posts:95
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| 04/23/2014 01:07 PM |
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Posted By Kameron Kameron on 04/23/2014 10:22 AM
It's not the width that causes flats, it's the PSI. Ride on 110 psi and hit a pot hole and you are doomed with a flat and maybe a dent in your rim. I won't ride anything less than 130 psi on 23 and 150 on 21s. Your a$$ will get use to it after a couple of rides. Back in the day I raced on Rolf tubular @180 psi, .....but they were 25s
Holy cats I could not ride your bike. Last summer I tried 120 based on a friend going on and on about it, and made it 100'. We couldn't be further apart in our preferences. I'd rather pinch flat once in a blue moon than detest every second of every ride.
Preferred road setup is 23mm tubeless (Hutchinson Galaktik now) at ~70f/75r. Also Mich Pro4 23 at maybe 75f/80r (they measure appx 25.5mm wide on the rims I use, I have no need for wider)
CX I go Grifo 33 tubular for most things, 27f/30r-ish
MTB I like the Ikon 2.2 rear and Ardent 2.4 front. As absolutely little air in them as I can do without constant bottom outs. 23f/26r happens a lot.
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| formerly dkri |
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Keith Richards
Posts:781
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| 04/23/2014 01:19 PM |
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90-95psi on 25s. Been doing it for years now on my steel bikes. No need for any higher. I would not go above 120psi on ANY tire on the road. Diminishing returns.
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| -----
It is his word versus ours. We like our word. We like where we stand and we like our credibility."--Lance Armstrong. |
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Hoshie
Posts:134
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| 04/23/2014 02:11 PM |
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right, depends on rim width and rider weight. One thing I learned in cross is the value of dialing in tire pressure depending on course conditions.
On the road, I was always a 100 guy, never pumped to 110 or 120. Now that I have wide rims, I go to 80-85 as topped off and life is good.
j
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79pmooney
Posts:3180
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| 04/23/2014 02:20 PM |
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130 psi? I've never put more than 115 in a tire. Sew-ups many years ago. Rarely go over 112 for anything now. The other day I rode the 24c Open Paves with 102 front/104 rear and it was sweet. Yes, on a bad enough pothole I would bottom out and maybe damage a rim. If I were racing, I would use similar tubulars on light rims and not much more pressure. And I might bottom out occasionally. That's why I would race tubbies.
Ben |
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Sweet Milk
Posts:93
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| 04/23/2014 02:40 PM |
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Lately I have been riding Michelin Pro 4s, 25 in the back at 95 psi, 23 in the front at 90 psi. More by coincidence (these were the tires that I had available) than by plan. I find I am really liking this set-up and will likely keep this configuration for the foreseeable future.
on a side note: I am surprised by how much better wearing the Pro 4s are than the 3s. |
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THE SKINNY
Posts:506
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| 04/23/2014 03:00 PM |
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| i only put in 90-95 psi because i'm usually worn out pumping by then. |
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| How we spend our days is, of course, how we spend our lives. |
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Orange Crush
Posts:4499
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| 04/23/2014 03:42 PM |
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what are there psi's you guys keep talking about?!?
8 bars gets 5 stars by me. it's the low end of the min/max range recommended for the tires. its a narrow range; there is such a thing as an optimal pressure for each setup. |
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Keith Richards
Posts:781
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| 04/23/2014 03:46 PM |
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| Ok OC, since you asked. 6-6.5 bar on my Silca. |
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| -----
It is his word versus ours. We like our word. We like where we stand and we like our credibility."--Lance Armstrong. |
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Oldfart
Posts:511
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| 04/23/2014 04:00 PM |
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| At a little over 140 pounds I rarely go higher than 90. On those gigantic 28's I am auditioning 70 seems pretty good. Off road tires i use as low as 20 but rarely more than 26. That's always tubeless and 2.2 to 2.35 width. |
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Cosmic Kid
Posts:4209
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| 04/23/2014 04:19 PM |
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So I shipped my road bike out to AZ for this weekend and early next week when I am in Scotsdale on business. My training wheels went with it.
Rode the TT bike today with my Zipp tubulars........wheeeeeee!! Damn those things are fast. Gatorskins suck.....but I strongly encourage all my competitors in the M45-49 age group to use them!!! 
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| Just say "NO!" to WCP!!!!
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Orange Crush
Posts:4499
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| 04/23/2014 05:37 PM |
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Posted By Keith Jackson on 04/23/2014 03:46 PM
Ok OC, since you asked. 6-6.5 bar on my Silca.
that get's too cadillac squishy for me. |
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