Readers ask: What Is 700c Tires?

What does a 700c tire mean?

700c is the size of your bike tire, according to the ‘French system’. The “700” number is the stated diameter of the bicycle tire in millimeters. C refers to the old French system which classified tire widths from “a” (the narrowest) to “d” (the widest). So, a “c” tire was almost as wide as these would get.

What is a 700c wheel in inches?

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.

Is a 29 inch wheel 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. 29” tires are popular with mountain bikers; search for 29” MTB.

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Is a 28 inch tire the same as 700c?

A 28tire is not the same size as 700c. 28” is slightly larger than 700c maybe less than half an inch in diameter. Since this amount is insignificant in size of tire; people may install 700c tires on 28” rim and vice versa.

What is the difference between 700 and 700C tires?

Yes they are the same. 700 is the nominal diameter of the rim. 700C is the usual standard for road bikes, but small frames or some custom builds may use a 650B.

Is 27.5 same as 700C?

Just as a 700C wheel is the same diameter as a 29” (29er) wheel, 650B shares the exact same rim diameter as 27.5”. 27.5”/650B rims have a bead seat diameter of 584mm, and 29”/700C rims have a bead seat diameter of 622mm.

Is 26 inch the same as 700c?

A 26 inch, or a 650c wheel is about 1 inch smaller (about 2 inches smaller with road slicks) in diameter than a 700c. Some people think that because 700c wheels are the ‘standard’ for road bikes, they must be better.

What size tires can I put on a 700c rim?

On a ‘700cwheel, you can have a range of different widths. 23mm wide tires have been the standard for most road cycling over the past couple decades. You might see a 700x20c, or a 700x25c. On a cyclocross bike or 29-inch mountain bike, you could see tires as wide as 700x35c or 700x58c.

Why is it called 700c?

As stated in this answer or this link, the idea was originally that there were 700A,700B,700C tires+wheels which all had an outer diameter of 700 mm with A tires being the thinnest and C tires being the thickest (so A had the largest rim and C had the smallest rim).

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Can I use 700c tires on my 29er?

Yes, there are differences in rim widths and tire cross sections but it’s unlikely that you will run into a 700C road tire that you CAN‘T mount on your 29er rims. Yes, the smaller cross section tire will lower the bike overall.

IS 700c 28 or 29?

700c is the “French code” for a few different ISO Standard rim sizes. They ALL measure 622mm (24.5 inches) on the inside. Depending on rim type and tire size, the outside diameter including the tire is 28 (road bikes) or 29 inches (MTB). Thats why 700c is can be both 28 and 29 inch “wheels”.

Can I replace 27 wheels with 700c?

These two wheel sizes are actually very close. 27wheels have a bead seat diameter of 630mm, while 700c wheels are 622mm. That’s only a 8mm difference in diameter or a 4mm difference in brake reach. Since the brakes on most 27“-wheeled bikes are marginal, it would be wise to replace them in any case.

Will 28 tires fit 700c rims?

As I understand it, a 28tyre fits 700c wheels and vice versa, a 27″ tyre wo’nt fit a 700c rim. A 700c inner tube will fit a 27″ wheel (i’m guessng probably a 28” wheel too).

What size is 700c 40C?

Table of bicycle tires sizes

ETRTO English Size FRENCH SIZE
40-622 28 x 1-5/8 x 1-3/4 700 x 40C
38-622 28 x 1-5/8 x 700 x 38C
37-622 28 x 1-5/8 x 1-3/8 700 x 35C
32-622 28 x 1-5/8 x 1-1/4 700 x 32C 700C Course

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