Road Bike Tire Size Explained

Road bike tyre size explained.

Road bike tire size explained. 25 622 is the international standardization organization iso way of identifying the 700x25c tire in the example above. On the other hand it increases the stress on the sidewall of the tyre. Bicycle tire sizes can be a confusing topic. Some older road bikes still have the 27 inch size.

Australian built carbon road wheels. Superwide lightweight durable. In this video dylan explains the correct way to read your old tires to replace them with the right size. A tire size you might see on a road bike.

Mountain bike tyre sizes are usually stated in inches. So a 29 inch mtb tube will have the same diameter as a 700c road wheel while a 27 5 inch tube will be the same diameter as a 650b road wheel. I currently have front tyre schwalbe smart sam active 57 621 and rear tyre schwalbe smart sam active 57 622 on rims cube ex23 36h disc tubeless ready. While there are tubeless tires out there these structures are an essential part of most bicycles whether you re riding a road or mountain bike.

The letter at the end of a tire size is a throwback to an old french system when the letters a b and c designated different inner tire diameters it does not stand for cm. Another reason not to exceed the 2 2 limit on road is that a more bulbous tyre can deflect sideways with a noticeable effect on control and roadholding. A third type of tire size might appear on either a mountain or a road tire. It s actually the same bead seat diameter as 700c tires but most 29 tires are simply too wide and tall to fit.

Common road bike widths in millimeters come in sizes ranging from 18 to 23 with a typical road bike tire at 700 x 23. Mountain tire sizes 26 twenty six inch is the most commonly used size for modern mountain bikes and is also used on many hybrid or utility bikes. 29 the 29er another popular size for mountain bike wheels and tires. Mountain bike tyres are designed to take this extra stress but road tyres are not.

Bike inner tubes are inflatable rubber or latex tubes that sit on the inside of your bike tire and help keep your ride safe and smooth according to the evans cycles purchase manual. Road bike tires generally come in three widths. 700x25c indicates a tire with a 700mm outer diameter and a 25mm width. 23c 25c and 28c their width in mm.

Because of the high pressure and desired low rolling resistance road tires come in narrow widths. When it comes to choosing width there are two major factors at play.