The differance is not so much the rolling resistance between 23-25's it's more to do with the added weight on the outside of the rim adding a significant amount of rotational mass therefore slower acceleration and harder work climbing.
If your worried about rolling ressistance try Specialized Roubaix's they have a 23c tread on a 25c body.
The differance is not so much the rolling resistance between 23-25's it's more to do with the added weight on the outside of the rim adding a significant amount of rotational mass therefore slower acceleration and harder work climbing.
If your worried about rolling ressistance try Specialized Roubaix's they have a 23c tread on a 25c body.