How Do Bike Tyre Measurements Work?

by | Last updated on January 24, 2024

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The first number refers to the width of the tyre, and the second number refers to the inner diameter of the tyre

. And finally there is also inch markings, which look like this; 28 x 1.40′′. In this case, the first number refers to the outer diameter of the rim and the second number refers to the tyre width.

What does 700x35c mean?

So 700x35c means

700c diameter wheel with a 35mm wide tire

.

What does 700x32c mean?

700x32c means

a 700c tyre which is 32mm wide

. Like kouhoutek said the same inner tube will a range of tyre widths, it will say something like “700 x 18-25c” meaning it is for road bikes and will fit anything from 700x18c up to 700x25c.

What means 700x23c?

700x23c simply means

the dimensions of your bike tire, under what’s known as the ‘French system’

. The first number, 700, refers to the nominal diameter of the bike tire and is measured using millimeters. The second number, 23, is actually the width of the bike tire, again it’s measured in millimeters.

What do mountain bike tyre sizes mean?


A wider tyre provides greater stability when cornering and moving fast, with wider surface areas improving grip and traction

. However, wider tyres reduce mud clearance between the tyre and the frame, and the higher friction also affects speed.

Is a 28 inch wheel the same as 700C?

28”/700C/29er

The tyres can differ, but

the 28”, 700C and 29er are all the exact same rim diameter

. The 700 markings will be followed by the width in mm, and the 28 or 29 markings will be followed by the width in inches.

How wide is a 37 C tyre?

ETRTO Inches Outer diameter – ca. 28 inch Inner diameter 622 mm – Tire width ca. 37 mm

ca. 1 3⁄8 inch

bzw. 1.40 inch
Tire height – ca. 1 5⁄8 inch

What does the C mean on bike tires?

Option A: “C =

Clincher Tires

According to some, the letter “C”, indicates that the tire in question may be a clincher type. “Clinchers” are the most common bicycle tires. They work with a tube and hook up with the rim with a lip (bead).

What size is 700x42c?

Only the 700×42 will fit properly, the

28(inch) x 1.6(inch)

tire is slightly larger in diameter than the 700c and just slightly narrower than the 42c (1.65 inch). The width measurement will probably not be a problem, but the difference in diameter might present some problems with the seating of the bead into the rim.

How wide are 32c tires?

Typical road bike tire: 700 x 32c indicates a tire that has an outer diameter of 700mm and a width of

32mm

.

Is 622 the same as 700c?


29′′ (ISO size 622) is actually the same rim diameter as 700C

, although most 29′′ tires will not fit 700C road rims because they’re too wide.

What size tire is 700×32?

At its most basic, a 700x32c tire is around

27 1/2 inches by 1 1/4 inches

(or 1.26 inches).

What is C in tire size?

The C-Type tire, on the other hand, is specifically meant as a

commercial-rated tire, with a higher load rating for a given size than many LT tires

. These C-Type tires will show the letter “C” immediately after the wheel diameter in the tire code. Example: 225/75R16C.

WHAT IS 700c wheel?

700C is used to refer to

any tire, rim, or wheel with a 622mm BSD

, but it could be on a skinny-tired road bike where the wheel has an actual diameter of only 660mm (which is actually a little LESS than 26 inches!), or a mountain bike with a wheel diameter of over 29 inches.

What do the numbers on a bike tube mean?


The first number is the diameter of your wheel

. Sizes such as 26, 24, 20, 27.5, 29 and 700c are common tire diameters. The second number (after the X) is the width of your tire. The range for widths is usually between 1 and 3 inches.

Does bike tyre width matter?


The width can have a major impact on the way your bike rides

. Wider tyres offer increased grip and comfort as they have a larger air volume and lower tyre pressure can be run. If your wheels are 700c, look for a tyre width of between 28c and 35c. If your tyres are 26 or 27.5”, look for widths between 1.5” and 2.0”.

How do you measure mountain bike tyres?

How are mountain bike tyres measured?

An MTB tire size is typically expressed as

wheel diameter x tire width

(like 29 x 2.4). Generally, mountain bike tires come in three diameters – 26′′, 27.5′′ and 29′′. There are also smaller ones for children’s bikes, ranging from 12 to 24 inches in diameter.

How many inches is a 700c bike wheel?

All road and cyclocross bikes are built with 700c wheels, which are

29 inches

. However, 700c wheels are designed to accommodate a thinner tire. Many come in widths ranging from 18 to 23 millimeters, with touring tires ranging from 25 to 28 millimeters.

Can you put 29 tires on a 700c?


A 700C tire will fit on a 29-inch rim – without any adjustments necessary for width and casing length

. A 29-inch wheel is the same as a 700C wheel. In fact, a 29-inch tire will fit on your 700C wheel without any fiddling with either width or length.

What is the standard road bike wheel size?

The majority of road bikes use

700c

wheels, although actually, the name doesn’t denote anything with any great accuracy. The 700 part refers to the approximate diameter across the wheel of the outside of the tyre in millimetres.

How wide are 35c tires?

35c means that the tire is

roughly 35mm

wide.

IS 700c the same as 26?

What Is The Difference Between a 26 Inch and a 700c Wheel? This brings us around back to the same answer;

they are the same diameter, but a 26-inch tire will fit onto a 700c rim but not the other way around because of the difference in rim thickness

.

What does 42c mean?

The c number, as in 42c is

a marketing number

, so it tells you what the manufacturer thinks you want to hear, which is probably going to be fairly accurate when interpreted as millimeters. Tires also have ISO numbers, and sometimes a tire will even list two widths, i.e. for the casing and the tread.

Are 28mm tires faster than 25mm?


Yes, they are still aerodynamically superior

, but the rolling speed advantages outweigh this, certainly at the speeds of regular cyclists and even up to the speeds reached by keen amateurs, even professional cyclists are now running 25mm tubulars and sometimes 28mm for the Spring classics.

What does 700x40c mean?

700x40c is

the measurement of your bicycle tire and is sized according to what used to be known as the ‘French system’

. ‘700’ is the nominal diameter of your tire, measured in millimeters. ‘x’ just means multiplied by. ’40’ is the second number and is the nominal tire width, also measure in millimeters.

What does 622 mean on bike tires?

The 622 is what’s called a “

bead seat diameter

,” which means it’s the diameter where the bead of the tire–basically the edge of the sidewall–meets and is held into the rim (an internal measurement of sorts).

Sophia Kim
Author
Sophia Kim
Sophia Kim is a food writer with a passion for cooking and entertaining. She has worked in various restaurants and catering companies, and has written for several food publications. Sophia's expertise in cooking and entertaining will help you create memorable meals and events.