Swapping to 25mm tyres

[Welsh wheels]

My new bike will have 25 mm tyres, what differences can I expect from the 23mm tyres on my current bike? I assuming they will be more comfortable and perhaps more puncture resistant but maybe there will be a decrease in speed?

 

[ColinJ]

They should be a little more comfortable (use slightly lower pressures than you do your 23s), about the same for punctures, and no slower. I like 25s. In fact, I am even thinking of trying to see if I can squeeze 28s on next time I replace my tyres.

 

[Fab Foodie]

My new bike will have 25 mm tyres, what differences can I expect from the 23mm tyres on my current bike? I assuming they will be more comfortable and perhaps more puncture resistant but maybe there will be a decrease in speed?

No not really, but it depends more on the tyre brand and construction than the size.
For example going from a 23c pro race to a 25c marathon plus, you will go slower! But a 23 marathon plus to a 25c pro race you will go faster!

 

[Welsh wheels]

They should be a little more comfortable (use slightly lower pressures than you do your 23s), about the same for punctures, and no slower. I like 25s. In fact, I am even thinking of trying to see if I can squeeze 28s on next time I replace my tyres.

That sounds good. I'll have to remember to run them at lower pressures!

 

[Welsh wheels]

No not really, but it depends more on the tyre brand and construction than the size.
For example going from a 23c pro race to a 25c marathon plus, you will go slower! But a 23 marathon plus to a 25c pro race you will go faster!

My new bike is coming with Kenda Kriteriums, so not the fastest tyres around!

 

[Rooster1]

Less pinch punctures, better pot hole absorption, a little heavier perhaps. I prefer 25c

 

[ColinJ]

Ah, I hadn't factored in that they are different types ... I was talking about bigger tyres of the same type. A good quality narrowish tyre could beat a cheap and nasty wider tyre in every respect!

 

[User6179]

25s at 100 psi, wouldn't go back to 23s, if anything I would go to 28s if they fitted on the bike.

 

[Welsh wheels]

Ah, I hadn't factored in that they are different types ... I was talking about bigger tyres of the same type. A good quality narrowish tyre could beat a cheap and nasty wider tyre in every respect!

Well if I don't like the Kendas, I guess I can always change them. What 25 mm tyres do you run?

 

[mjr]

Use one of the 15% tyre drop calculators to figure out the ideal pressure for a weight. It'll probably be lower than you think.

 

[Welsh wheels]

Use one of the 15% tyre drop calculators to figure out the ideal pressure for a weight. It'll probably be lower than you think.

Ok thanks

 

[Welsh wheels]

Use one of the 15% tyre drop calculators to figure out the ideal pressure for a weight. It'll probably be lower than you think.

Although to be honest, until now I have just pumped my tyres until it feels right.

 

[Welsh wheels]

Use one of the 15% tyre drop calculators to figure out the ideal pressure for a weight. It'll probably be lower than you think.

I do have a pressure gauge on my track pump, but not convinced it's working.

 

[Banjo]

I have been using Durano Plus 25s recently and like them. Probably too heavy for racing but for anything else they roll nicely and so far have proved to be tough enough for our crap roads.

lots of racers using 25c tyres these days so I don't think you will notice any loss of performance and will get a noticeable improvement in comfort.

 

[Welsh wheels]

Interesting that so far no-one has said anything negative about 25mm tyres. Maybe I should have swapped before.