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700x23 vs. 700x25(17 posts)

700x23 vs. 700x25LLSmith
Jan 11, 2002 2:47 AM
Has anyone used both of these tire sizes? I ordered a couple 700x25 tires last year by mistake. Is there any noticeable difference in performance for a rec rider?
Thanks
re: 700x23 vs. 700x25morey
Jan 11, 2002 4:23 AM
I like to use 700 x 23 because they feel faster. I have use 700 x 25 and they appear slower. It could be my perception. However, I think there is very little difference in actuality.
re: 700x23 vs. 700x25luddite
Jan 11, 2002 6:22 AM
I use 25s on my cannondale caad4 with rolf pros -- they just fit below the chorus brakes; I do fast club rides, the bunny mountain trails (great glee found riding past full suspension riders)and commute. Got tired (no pun)of wimpy race tires that shreded within 800 miles. Have saved me (and my rims) many times at night when I hit god-know-what (many rusty mufflers in the bike lanes here in Michigan). Michelins seem to have the best for the $$$.
re: 700x23 vs. 700x25Berndog
Jan 11, 2002 8:11 AM
And you don't have to release the brake to pull the wheel off and remember to re-engage it.
re: 700x23 vs. 700x25pmf1
Jan 11, 2002 4:49 AM
700x25 seems like over-kill to me unless you weigh 300 lbs or are riding on really bad roads.

But since you now own some, what options do you have? Either throw them away or use them. Might as well give them a try. Got a commuter/beater bike?
I'm using them on a new bikeashleyrenfroe
Jan 11, 2002 5:22 AM
They came on my 2001 Trek 2200. I am not overly heavy, but I do weight about 196. I think they are really great tires, and I notice no difference in speed. They seem to corner quite well and can hold a lot of tire pressure. They just work better for me than 700x23's.
re: 700x23 vs. 700x25slow-ron
Jan 11, 2002 5:54 AM
After getting a series of flats and becoming very frustrated last year with 700x23 tires (I ride very rough roads) my LBS suggested trying 700x25. I rode the last half of the season with them and the flat problem seemed to go away. I did, however, notice a very slight difference in performance. My rides times were the same but I felt like I was going a bit slower. Could be in my head. I would have to say that the perceived loss of speed was more than offset by the added comfort of the larger tires. One additional negative for the larger tires is the difficulty getting the rear wheel off the bike. With my frame it's a bugger getting the rear wheel off using 700x25's.

good luck.
Deflate the tireMisJG
Jan 11, 2002 7:23 AM
Deflate the tire before you try to remove the wheel and then inflate it after it's installed.
Problem solved!
re: 700x23 vs. 700x25RayBan
Jan 11, 2002 5:55 AM
you will probably appreciate the extra comfort a tire that big will provide. The smaller the tire size the less rolling resistance but for rec riding thats probably not THAT important. They will be a bit more bulletproof than a skinny tire too.
re: 700x23 vs. 700x25John-d
Jan 11, 2002 5:57 AM
I have been riding 700x25 tyres for the last 6 years, my new bike has 700x23 tyres and rides much faster, but of course it also has better wheels etc. I have decided however that it is not so much the tyre size that gives the difference but the tyre type.

What I mean is 700x25 are usually more of a recreation tyre whereas the 700x23 is more of a racing tyre. They are made therefore with different objectives, so the 700x23 will probably be faster. The only way to check it out is to try both sizes, the same make and model of tyre, on the same wheels etc. and do a rolling test.

With my two bikes the tyres are different makes giving a totally different feel.

Having said all that it has occured to me that I read somewhere that a 23mm tyre is faster than a 19mm tyre, so there must be an optimum somewhere, which may just be the 23mm size.

So are your new tyres the same make etc as the old ones if so give them a try, I for one would be interested to hear what your impression is.

John-d
what's a tyre?slow-ron
Jan 11, 2002 6:43 AM
must be the Queen's English.
Goes on a byke, dummy ...pmf1
Jan 11, 2002 6:59 AM
And after our ryde, we have some tea and watch gardening shows on the telly.
Advice from Vicodanman!Elefantino
Jan 11, 2002 8:08 AM
A while back, Bicycling did a story about how the contact patch for a 25 is actually smaller than a 23 because of ... well, I don't remember because it seemed like a bunch of hooey to me.

I ride 23s (when I ride; it's been so long I can't remember) on my main bikes, 25 on the rain bike. Not much difference to me, but the laziness in me likes 23s because they're easier to get on and off.

But I doubt a regular rec rider would notice much of a riding difference.

FWIW,
Mike
Advice from Vicodanman!czardonic
Jan 11, 2002 3:34 PM
If 25s can hold more pressure, that would explain the smaller contact patch. A harder tire would flatten out less when it was pressed against a flat surface.
re: 700x23 vs. 700x25DINOSAUR
Jan 11, 2002 10:55 AM
My Klein came stock with Conti GP3000 700x25's. When it came time for new tires my LBS didn't carry 25's and the gal in my LBS tried to sell me some 20's but I opted for 23's. The 23's do feel faster, but I think it's because of the road feel. If you are a big rider and suffer from pinch flats the 25's might work for you. What kind of tires are they? Some manufactureres measure their tires differently, a 23 with one tire might be rated a 20 with another brand. If I could find a 25 I'd ride with a 25 in the rear and a 23 in the front. Also aren't most cyclocomputers dialed in for 700x23 tires? I'd just use them, heck it's winter anyway..
I'm always experimenting with tires, haven't found the perfect one yet (excluding tubbies, years ago)...
every brand is differentgtx
Jan 11, 2002 11:20 AM
you can't always compare one comapany's 700x25 to another company's 700x25. That said, I've always ridden 700x25s--for the last ten or so years it's been Conti 700x25s (currently quite pleased with their cheap Ultra 2000s). They're durable and comfy and I rarely flat and your wheels get a bit more protection, too. When I raced (or when I still do the odd hillclimb event) I used tubulars.
re: 700x23 vs. 700x25Trent in WA
Jan 11, 2002 7:18 PM
I've never used 23s, so I can't really compare the sizes. However, I find the Conti Ultra 2000s 700x25's I use to be fast, smooth, and comfortable, and really can't see the point in using skinnier tires. I'm looking forward to trying out some 28's when I get a bike that can actually handle tires that size. But then again, I don't race, nor do I ride with racers.