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change from 700x25c?

Old 10-07-15, 07:38 AM
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Dr1Gonzo
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change from 700x25c?

I think I want to get some new tyres, probably gatorskin or hardshell but they seem difficult o find in a 25c size.
How high can I go on the tyre size if the current ones are 25c?

Alternatively, how effective are those tape (mr tuffy?) that you can put on the inside of the tyres?
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Old 10-07-15, 07:45 AM
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What frame are you on? What rims? There are a truckload of details missing here we'd need to answer this.

No idea about the tape though.
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Old 10-07-15, 08:14 AM
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Shouldn't be too hard to find online in 25c...

Continental Gatorskin Folding Clincher Road Tyre - Black | ProBikeKit.com
Continental Gator Hardshell tire | Retrogression
Continental Gatorskin Tire - Tires - Clincher - Excel Sports
Continental Gator Hardshell Tire - Tires - Clincher - Excel Sports
Continental Gatorskin Folding Clincher Tire - Featured Items - Specials
Amazon.com : Continental Gatorskin Folding Kevlar Bead Road Bike Tire 700x25c : Sports & Outdoors
Amazon.com : Continental Gator Hardshell Urban Bicycle Tire with Duraskin (700x25, Folding) : Bike Tires : Sports & Outdoors

I've also used the Mr Tuffy stuff in the past and I can't say if it helped or not. I got just as many flats using it as I did not using it. Flats happen, just learn to change a tube.
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Old 10-07-15, 08:15 AM
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Continental Gatorskin's go from 23-32c
continental bicycle Gatorskin

The larger sizes just may not be stocked in your LBS.
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Old 10-07-15, 08:21 AM
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from 33c to 38-40c?

On a similar topic, are there benefits/disadvantages to going from 33c to 38-40c CX tires? My current tires are 700 x 33c Schwalbe Rocket Ron, and I feel like when riding trails I would prefer a wider tire.
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Old 10-07-15, 08:40 AM
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Hard to find? My LBS carries them in stock, all the time. 23/25/28 and I believe a 32 with the first 3 always in stock.
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Old 10-07-15, 10:06 AM
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I know you want Gatorskins and you didn't ask for alternatives but I just put on a set of Vittoria Rubino Pro 3s and love them. They have much much much lower rolling resistance and pump up to 140 psi if you want to fly. Obviously they give up some puncture protection but if you are putting liners in anyway it's worth considering the Rubino. They can be had for $30 shipped compared to like $55 for the GS because everyone and their mother wants Gatorskins for some reason. Rubinos are about 235 grams so pretty darn light for an everyday tire.
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Old 10-07-15, 10:23 AM
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I bought my Hardshells in 25C from Retrogression.
The 23Cs on my Zephyr came from Nashbar during one of their many sales. There seems to be no shortage of suppliers, you just have to take your pick.
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Old 10-07-15, 11:06 AM
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If you are concerned about punctures, consider these
http://www.bikeforums.net/classic-vi...ring-time.html
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Old 10-07-15, 12:57 PM
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Originally Posted by ufbeans View Post
and pump up to 140 psi if you want to fly
Why on earth would you ever do this?
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Old 10-07-15, 01:03 PM
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Originally Posted by SpeshulEd View Post
Why on earth would you ever do this?
Because he's racing on a wooden track, duh.
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Old 10-07-15, 01:16 PM
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Originally Posted by ufbeans View Post
I know you want Gatorskins and you didn't ask for alternatives but I just put on a set of Vittoria Rubino Pro 3s and love them. They have much much much lower rolling resistance and pump up to 140 psi if you want to fly. Obviously they give up some puncture protection but if you are putting liners in anyway it's worth considering the Rubino. They can be had for $30 shipped compared to like $55 for the GS because everyone and their mother wants Gatorskins for some reason. Rubinos are about 235 grams so pretty darn light for an everyday tire.
I have run the Rubino Pro III Slick for years. It my all around favorite tire. $26.99 from Chain Reaction if you don't mind waiting for them to be shipped from Ireland.

It is a good balance between performance and durability and has a very supple ride.
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Old 10-07-15, 01:24 PM
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Originally Posted by SpeshulEd View Post
Why on earth would you ever do this?
You go faster at higher PSI? If you want to ride slow and comfy that's your prerogative. The tire I mentioned has the ability to be pumped up high. So you just sit tight on your 38s pumped to 60 psi and have a great day.
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Old 10-07-15, 01:25 PM
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So much mis-information above.
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Old 10-07-15, 01:30 PM
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Originally Posted by Cynikal View Post
So much mis-information above.
please do bless us with a full response.
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Old 10-07-15, 01:33 PM
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The only time a high pressure tire is faster is on a smooth surface. The basic idea is that a high pressure tire does not absorb the impact of imperfections in the road and thus pushes back on the bike. Where a larger volume, lower pressure tire will absorb the impact without deflection. More info below.

https://janheine.wordpress.com/2015/...re-revolution/

https://janheine.wordpress.com/2015/...a-and-details/
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Old 10-07-15, 01:48 PM
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Originally Posted by Cynikal View Post
The only time a high pressure tire is faster is on a smooth surface. The basic idea is that a high pressure tire does not absorb the impact of imperfections in the road and thus pushes back on the bike. Where a larger volume, lower pressure tire will absorb the impact without deflection. More info below.

https://janheine.wordpress.com/2015/...re-revolution/

https://janheine.wordpress.com/2015/...a-and-details/
The test they ran is pretty basic but even if we take the data on its face it neglects to consider stop and go scenarios. You know red lights, cars, people, obstacles. Bikes don't run at one speed they accelerate and slow down. Lower rolling resistance at higher psi is an undisputed biking FACT. And let's not forget that most of the pros run high PSI whether indoor track or otherwise.
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Old 10-07-15, 01:52 PM
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Do what you want bro. I'm happy with my setup.
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Old 10-07-15, 01:54 PM
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Originally Posted by Cynikal View Post
Do what you want bro. I'm happy with my setup.
Yeah bro, max psi makes you faster, just like running a52x12 makes you faster.
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Old 10-07-15, 01:59 PM
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I run Mr. Tuffy strips on the track, and have never gotten a flat. Just sayin'
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Old 10-07-15, 02:00 PM
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Originally Posted by Huffandstuff View Post
Yeah bro, max psi makes you faster, just like running a52x12 makes you faster.
Great glad that's settled. Let us never forget who the real enemies are. Taxi drivers.
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Old 10-07-15, 02:06 PM
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Originally Posted by ufbeans View Post
Let us never forget who the real enemies are. Taxi drivers.
Actually, Sinead O'Connor determined back in 1992 it's the pope.

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Old 10-07-15, 02:13 PM
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Originally Posted by ufbeans View Post
Great glad that's settled. Let us never forget who the real enemies are. Taxi drivers.
Uber amd Lyft are ten times worse than cabs.
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Old 10-07-15, 02:26 PM
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Originally Posted by ufbeans View Post
The test they ran is pretty basic but even if we take the data on its face it neglects to consider stop and go scenarios. You know red lights, cars, people, obstacles. Bikes don't run at one speed they accelerate and slow down. Lower rolling resistance at higher psi is an undisputed biking FACT. And let's not forget that most of the pros run high PSI whether indoor track or otherwise.
I'm not sure. There are other threads that suggest tires which absorb some of the road vibrations help with both comfort and reducing overall rolling resistance.

The other issue, however, is the ability to take a corner. And, a little lower pressure will aid substantially with corner gripping, and may help keep you, and everyone around you upright. Safely getting around corners at speed may make a bigger difference to your racing than gains or losses with moderately high pressures.

Originally Posted by Dr1Gonzo View Post
I think I want to get some new tyres, probably gatorskin or hardshell but they seem difficult o find in a 25c size.
How high can I go on the tyre size if the current ones are 25c?
Alternatively, how effective are those tape (mr tuffy?) that you can put on the inside of the tyres?
Is the problem stock at your local bike store? They may be able to order the tires you need. Otherwise, as others have mentioned, they are easily sourced online.

Some bikes will have tire clearance issues with anything larger than 25mm... just check what you need.

I've never used tire liners in a road bike. Perhaps they'll work, but would be a bit awkward. I'd probably go with thicker tubes plus a sealant first.

I did have a boot chew through a tube, so just make sure you don't have any sharp edges with the tire liner that could move independent from the rest of the tire (the ends).
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Old 10-07-15, 02:50 PM
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Originally Posted by ufbeans View Post
You go faster at higher PSI? If you want to ride slow and comfy that's your prerogative. The tire I mentioned has the ability to be pumped up high. So you just sit tight on your 38s pumped to 60 psi and have a great day.
What Is The Optimal Tire Pressure? | CyclingTips

There’s a perception that running tires at high pressures of 115-140 psi somehow makes the bike roll faster. The thinking behind this is that it reduces rolling resistance because less surface area of the tread is touching the road. However, at higher pressures, internal losses due to flexing of the casing decrease, but suspension losses due to vibration and bouncing of the bike increase. The resulting vertical movement is robbing forward momentum. This cancels out most of the gains the increased pressure attempted to provide. What those high pressures really do is accelerate wear, compromise handling and give an extremely harsh and skittish ride.
Tour tech: Tyre pressure | Cyclingnews.com

Honestly, 140psi on just about any street in America sounds like absolute hell.
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