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Going from 25mm to 23mm tires

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Going from 25mm to 23mm tires

Old 07-15-10, 02:37 PM
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Going from 25mm to 23mm tires

I ordered a bike online from BD/SportyMamaBikes and they sent the wrong tires. They sent Continental Ultra Sport tires instead of the Continental Ultra Race that had kevlar linings it was supposed to come with.

They offered to replace them with Vittoria Rubino Pro tires. They are 700x23 instead of x25 though. Should I go for it? I'm not racing or anything, just casual riding.
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Old 07-15-10, 02:40 PM
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Rubino Pros are good tires. I've never ridden Conti Ultra Races so I can't compare the two. But 2 mm isn't going to be much of a noticeable difference, if you're concerned about that.
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Old 07-15-10, 02:45 PM
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Consider the source here. I'm not a fan of ultra thin tires.

There's good data that after a point there's no benefit in lowered rolling resistance in narrower tires, but there is the increased risk of rim dents. If you weigh less than 150#s, either is probably fine, over 150#s I'd venture that you're actually better off with the slightly wider tire. Also be aware that width dimensions in tires aren't precise, one company's 23mm tire might actually be wider than another's 25mm.

IMO, if you like the tires you have, ride them, rather than waiting for others. Tires, brake shoes and chains fall into the category of consumables that get replaced soon enough that minor differences don't matter.
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Old 07-15-10, 02:57 PM
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Having ridden on both with various bikes I prefer 25's. The ride is slightly softer and I've never had a pinch flat with 25's while I did have one with a 23 when I failed to see a nasty pothole in time. Having said that lots of folks ride with 23's all the time and have few troubles.
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Old 07-15-10, 03:04 PM
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There's always the possibility that there will be no actual difference in width, despite the claimed sizes.
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Old 07-15-10, 06:32 PM
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Originally Posted by desertdork
There's always the possibility that there will be no actual difference in width, despite the claimed sizes.
+1. Bike tire size claims are highly suspect and often tires are not as marked. I have a pair of cyclocros tires on one bike that are labeled 700x32 that actually measure 26 mm installed on suitable rims. I have had tires marked 700x25 that measured as narrow as 22 mm when installed so it's not likely you will notice a major difference.

BTW, I've also had excellent service from 700x23 Rubino Pros. They've been durable, handle well and measure a true 23 mm.
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Old 07-15-10, 08:23 PM
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I agree with BCRider--I like 25's. I have 23's on one set of rims to use for smooth road, fast event use, but my everyday tires are mostly 25's. I do use 28's on a couple bikes.
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Old 07-15-10, 09:38 PM
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It seems to me that 23's are the most popular size for road bikes. I certainly see more of them than any other.
I ride Michelins and they are a bit larger than most 23's.
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Old 07-15-10, 10:00 PM
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Originally Posted by Al1943
It seems to me that 23's are the most popular size for road bikes. I certainly see more of them than any other.
I ride Michelins and they are a bit larger than most 23's.
They are extremely popular for road bikes used for training and exercise rides. But they do not respond well to big divots in the pavement or hitting shoulder debris at speed. Mind you 25's aren't a WHOLE lot bigger but from my experience those silly 2mm's of extra casing seem to make far more difference than they would suggest.
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Old 07-15-10, 10:40 PM
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I actually have all the tires you mentioned on three of our road bikes or in the shop. However, thay are all 23mm's. I prefer the Continental's over the Vittoria's, and use them on both our touring bikes(28mm) and road bikes. I am actually waiting for the Vittoria tires on my road bike to wear out so they can be replaced with Conti's. I do carry a Vittoria foldable tire as a spare on tours. The Vittoria tires seem to crack and delaminate along the sidewalls. I've had 4 of them, 2 with wire beads and 2 with kevlar beads. I'm not sure the cracking of the sidewall casing is a structural issue, but it has happened to some degree on all of them. We've used the Conti Ultra Sports (23), Ultra Race (23's on my wife's TRI bike), Ultra 2000(23), Ultra 3000's (25) and Ultra Gatorskins (28) without any problems. All of the Conti's provide excellent wet weather traction.

There is a lot of good information above, and I believe that at a 100psi you won't see much difference between the 23mm and 25mm. There may be a small difference in weight.

As you can tell I'm a little biased
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Old 07-16-10, 07:27 AM
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Originally Posted by Doug64
The Vittoria tires seem to crack and delaminate along the sidewalls. I've had 4 of them, 2 with wire beads and 2 with kevlar beads. I'm not sure the cracking of the sidewall casing is a structural issue, but it has happened to some degree on all of them.
Either I've been lucky or you've been very unlucky with Vittoria tires. I've used a dozen of both the Rubino Pro and Rubino Pro Slick foldable tires in 700x23 over the past few years on two bikes and have the "Slicks" on both right now.

In my experience they wear out without any dramatics and the sidewalls remain in good condition until the tread rubber disappears from use. I typically get 3000 -3200 miles on a rear tire and change the front every two rear tires. I never had any problems with them with the exception of one that died prematurely when it was attacked by a piece of glass that caused a 2" gash. Can't fault the tire for that.
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Old 07-16-10, 07:52 AM
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The 25's will probably suit the OP more unless he's riding on glass roads and/or willing to sacrifice a bit more comfort for speed. Assuming they actually are wider. Ultra sports are pure garbage. The rubino pros are a good throwaway race tyre.
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Old 07-16-10, 07:57 AM
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Originally Posted by operator
The rubino pros are a good throwaway race tyre.
You retread other tires?
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Old 07-16-10, 07:59 AM
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Originally Posted by HillRider
You retread other tires?
I meant throwaway race training tyres. Sheesh
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Old 07-16-10, 08:00 AM
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Ultra Sports are crap. Take the Rubino's or Ultra Race, wear them out, then replace with a bigger tire if you don't like them.
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Old 07-16-10, 08:03 AM
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Originally Posted by mmmdonuts
Ultra Sports are crap. Take the Rubino's or Ultra Race, wear them out, then replace with a bigger tire if you don't like them.
Yeah for a tyre that retails for $12, you can't expect much.
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Old 07-16-10, 08:30 AM
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For casual riding, you might want to look at Ultragatorskin 25's, or 4Season 25's. The 4Season's roll a little easier, at the expense of tread life. Softer compound, I suspect. The Ultragatorskins roll pretty well. and have good puncture protection. They have the same Max PSI rating, so can be run at 120psi if you want.
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Old 07-16-10, 11:01 AM
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Originally Posted by desertdork
There's always the possibility that there will be no actual difference in width, despite the claimed sizes.
Yep. Take the label size with a huge grain of salt. I've had a "23" that measured 25, a "26" that measured 28, and a "30" that measured 27.5.
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