Road Bike Wheel And Tire Sizes

The tire rim width chart in the etrto standards manual says a 15c rim can safely use tires from 23c all the way up to 32c or mm in width.

Road bike wheel and tire sizes. If your rim tire combination isn t listed measure your wheel and use the bikecalc rim tire combination that will result in the nearest circumference or email me your rim tire sizes and i ll add them to bikecalc. Performance from different tire wheel width combinations. So the a standard road bike rim is likely to have markings of 622 x 19. This wheel size is the largest available for conventional bicycles giving a racing bike more stability at high speeds.

So what combination of bike tire and wheel sizes are best for you my fellow road cycling enthusiast. The second smaller number is the tire s width. Road bike tires generally come in three widths. Where you see a block of two or more compatible sizes having the same bead diameter you can assume that intermediate sizes exist that will also fit the same rim.

The table below lists all the wheel sizes in bikecalc. The table below lists most of the sizes of tyre that are likely to be found in the uk. The history of that name would need a whole other blog post to fully explain but the short version is that it came from international tire sizes where the outside diameter would be approximately 700mm and multiple rim sizes would be labeled 700a 700b 700c etc. Racing bikes use the 700c size which has a tire bead set diameter of 622 millimeters.

27 iso size 630 is an older size that was used for road bikes but since so many bikes were built with this size it is still readily available. The standard modern road bike wheel has an iso diameter of 622 mm and is referred to as 700c makes sense right. As the width decreases there is less rolling resistance or friction and therefore is faster. Common road bike widths in millimeters come in sizes ranging from 18 to 23 with a typical road bike tire at 700 x 23.

Some older road bikes still have the 27 inch size. Between 18 622 and 25 622 there are tyres of 19 20 22 and 23mm section. As the width increases the tire will have more contact surface with the road making it more stable and comfortable. Size used on some high performance road and triathlon bikes especially those designed for smaller riders.

23c 25c and 28c their width in mm. So the rim spec will be 622 x then another number this other number will refer to the rim s internal width for a road bike this could be a number from 13mm up to 25mm with most road bike rims in the 18 19 mm area. The size of a bicycle wheel is usually measured using the tire size which comes in several stock sizes that are universal across the world. When shopping for road tires you ll look for 700c x your preferred width 23mm being the slimmest option and going up to 36mm.

Because of the high pressure and desired low rolling resistance road tires come in narrow widths.