Tyre sizes Help!

[Jake151]

Hey guys, i'm new here

I recently got a Defy 2 and started road biking and currently really enjoying it, I am thinking about upgrading the tyres to somthing a little more puncture resistant and better roll resistance

I have been looking at the Schwalbe Ultremo tyres but it seems they are only 700x23c and the tyres i have at the moment are 700x25c (the ones that came with the bike) and I would like to know what these numbers mean and will I have to upgrade the wheels and inner tube or will be it ok with the current wheels?

Thank a bunch

Jake151

 

[PpPete]

Welcome Jake !

It is likely that a 700 x 23 tyre will be OK - but to be sure, and to understand the significance of those numbers take a look here.

http://sheldonbrown.com/rim-sizing.html

 

[Jake151]

Thanks a lot for the quick reply, I shall have a look at that site

Jake151

 

[jimboalee]

23mm profile tyres are the narrowest I would fit to ride on Birmingham roads.

Check the condition of your local roads before deciding on tyre profile.

 

[Jake151]

thanks, i live in swindon the roads arnt too bad i take it the smaller the tyre the easier it will ware from potholes drains ect?

Jake151

 

[jimboalee]

No. The easier the rim will dink, kink or break from potholes.

 

[Jake151]

oh right, would it be better if i got wheels that where made to fit 23c? or is there no such thing

sorry for all the questions i am kinda new to this hehe

 

[Paulus]

Most 700c wheels will fit 23/25/28 mm tyres. You don't really get special wheels for smaller tyres. With small 23mm tyres there is little protection for the rim should/when you hit a pothole and therefore more likely to dent the rim. Larger tyres give more protection because there is more rubber between the road and the rim. The difference in rolling resistance between 23 and 25mm tyres is negligible.

 

[swee'pea99]

Hi Jake

If your roads are ok, I'd go for 23s - they're kind of standard for going fast and easy. The downside is a bumpier ride (the fatter the tyres, the more they cushion) and I guess a greater vulnerability to damage (having said which, I ride London roads which aren't exactly smooth as a baby's bum, and I've had no problems with rims.) Oh, and pump 'em up hard: 120 back, 100 front.

 

[Jake151]

thanks guys, i'm happy that i can use them tires now

Jake