Bicycle Tires Numbers Mean

Tires labeled st or special trailer are meant for trailers.

Bicycle tires numbers mean. It doesn t mean anything really. If the tire diameter is not given section widths ending in zero e g 7 00 or 10 50 indicate the aspect. Studded bike tires have steel or aluminum studs that provide traction for riding on snowy or icy surfaces. 3 or 4 digit number.

To simplify everything â the best sizing to use is the etrto number as it is a universal standard and is based off the technical measurement of the tires. So in this case the tire to the right is a 23mm tire. Assuming we re only talking road bikes you really only need to know what two of the numbers mean. A tire labeled t or temporary spare is meant to be used in the event of a flat tire.

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. Lt or light truck are tires for towing trailers or have a 3 4 to 1 ton load capacity. If the second numbers match on a tire and a rim the tire will likely fit the rim with a few exceptions related to dramatic differences in width. At one point in time 700c was a standard tire rim size where c indicated the bead seat diameter and 700 was the diameter in millimeters when the tire was installed and inflated.

The first number on these tires is 29. Soft sticky rubber is grippier while hard rubber is more durable. Advanced rubber compound in bike tires. The second number 584 is universal between tires and rims.

The diameter of the tire in inches. Read the size carefully. The tire diameter is given for high flotation tires and omitted from numeric tires. If you ride in the winter these are worthy of consideration.

Take the photo to the right for example and you ll see two lines. If you re unsure which bit is the sidewall then stand on the side of your bike so that the tires can be seen as an o shape and the spokes are. Most tires use primarily one type of rubber. The section width cross section of the tire in inches.

If these numbers don t match there s a very good chance it won t fit. A hybrid of road and mountain tires cyclocross tires are labeled as 700c and have widths indicated in millimeters like road bikes yet are knobbie like mountain bike tires. Road bike tires generally come in three widths. Including but not limited to boat trailers utility trailers and 5th wheels.

Widths of 29er tires are similar to mountain bikes and are also labeled in inches. The sidewall is the strip of rubber that is just above the metal surface of the wheel s rim where the brake pads touch the wheel. The bike tire sizing will be on the sidewall of your tires. That 700c tire size has a 622 millimeter bead seat diameter.

Nowadays bicycle tire sizes are all marked according to etrto european tire andrim technical organization or iso european standard however older english and french tire size dimensions are still used as well. It represents the bead seat diameter bsd in millimeters.