Bike Tyre Sizing and Widths
If you’re wondering whether a certain tyre will fit on your bike, then a good rule of thumb to go by is that a regular road wheel size is 700c, which will feature a width of 23mm, 25mm or 28mm (there are other, less common widths, but these are the widths generally used to cover a range of cycling styles). The thinner the width, the faster you can go, while the thicker the width, the more stability you’ll have.
Think about the type of riding you’ll be doing before you purchase your bike tyres.If you’re a speed demon who just wants to go fast, climb easy and doesn't mind skimping on comfort and stability, then a 25 mm or 23 mm tyre will be the best option for you. If you’re likely to cross rough terrain (not mud obviously, but debris covered roads, cobbles etc.) then a thicker tyre with a bigger width could be an option, as long as your aims aren't to race or go as fast as possible. A thicker tyre can also be beneficial in winter due to the unpredictable nature of the terrain, and for commuters who may cross different urbanised/rural ground types.
