Do bike tubes need to be exact size?
While your diameter measurement needs to be exact, your width measurement does not. Because inner tubes stretch, they typically come in a range of widths. For example, one of our most popular tubes is the 26 x 1.75-2.125” which means it fits a 26-inch diameter tire with a width in the range of 1.75 to 2.125 inches.
How do I know my bike tube size?
The best way to check what size inner tube you need is to look on the sidewall of your tyre. Tyre manufacturers print the size on the sidewalls, so look out for numbers such as ‘700x23c’ for a road bike, or ’26×1. 75′ which is for mountain bikes.
What is the standard road bike tube size?
The simple answer is this:
The “700” should always be there (this is the diameter of the tube) and the “23” will be a number in between 18 and 45 (this is the width of the tube and varies according to how much air you inflate it with). Once you’ve found these numbers then you’re ready to choose your new tube.
What do the tube size numbers mean?
The size is almost always written somewhere on the sidewall of the tyre. Inner tubes typically state a wheel diameter and width range for which they will work, e.g. 26 x 1.95-2.125″, indicating that the tube is intended to fit a 26 inch tyre with a width of between 1.95 inches and 2.125 inches.
What happens if you use the wrong size inner tube?
Cons: Using a narrower tube means that when it is fully inflated to the tire size then it is over-inflated. This leads to more stress on the rubber and it is thinner than it should be. This added stress to the inner tube means that it will not last as long as one that is the correct size for your tire.
What does 700x40c mean?
The first number refers to the diameter and the second number is the tire width. On a 700x40c tire, the first number indicates that the outside diameter is approximately 700 millimeters. Tread and tire width can affect the overall diameter, so the 700 is always a rough estimate.
How do bike tube sizes work?
When you buy an inner tube, the packaging will usually list which diameter and width it fits, according to Evans Cycles. For example, if an inner tube says it’s best for 26 x 1.95-2.125″, that means the tube should be used for a 26-inch tire with a width between 1.95 and 2.125 inches.
IS 700c same as 29?
29″ / 700c (ISO 622 mm)
Here we have two more common wheel sizes that are in fact, exactly the same! The standard modern road bike wheel has an ISO diameter of 622 mm and is referred to as 700c (makes sense, right? /s).
What does 700c mean?
The term “700c” is the tire size according to the French system. The “700” is stating the diameter of the bicycle tire and “c” is the width size of the tire. However it’s not 700 millimeters it’s 633 millimeters. Also, another common mistake is that often riders confuse “c” with centimeters.
What does 700 mean on bike tube?
The “700” refers to the rough outer diameter of the tire, although the actual outer diameter will vary greatly, depending on the type of tire and tread pattern. The “C” means NOTHING; it does not stand for “centimeters.” Think about it–a 700-centimeter tire would be HUGE, over 21 feet tall!
Can I use a smaller tube in my motorcycle tire?
No, tubes and tires don’t need to match exactly. Tubes are made from butyl rubber which can stretch. Bike inner tubes will accommodate a limited range of sizes. Larger tubes may be more susceptible to getting pinched between the tire and rim.
Can you use a bike tube that is too small?
Yes, you can, as long as you don’t go more than one size smaller, or the differential is not too extreme. A 1.25 in a 1.5 is fine. A 1.25 in a 2.25 is likely to have issues with flats.
Is 700×23 the same as 700x23c?
There is no difference.
700×23 and 700x23c are just the sizing for the bike tire.
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.
Can I use bigger inner tubes?
Yes, it’s perfectly safe to use the next larger size tube in a smaller tire. It’s a common trick used by bike messengers to reduce the chance of flats. The only downside is a slightly heavier wheel since you’re using more tube that you really need.
Can I use a 29 tube in a 700c tire?
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. You can also get 26 inch MTB tubes.
Can you put 29 inch wheels on a 700c?
A 700C tire will fit on a 29-inch rim – provided there’s the same bead seat diameter. A 29-inch wheel is the same as a 700C wheel most of the time.
What tires will fit a 700c rim?
Tyre widths available for the 700C/622mm size standard vary from 18 to 47mm, with popular widths such as 23, 25 and 28mm in the mix. The big-wheeled mountain bikes known as 29ers also use this size, so there are off-road tyres up to a whopping 75mm wide.
What is the difference between 700×23 and 700x23c?
Is there a difference between 700 and 700c?
The words are very similar but the meanings are so different. The term “700c” is the tire size according to the French system. The “700” is stating the diameter of the bicycle tire and “c” is the width size of the tire. However it’s not 700 millimeters it’s 633 millimeters.
What happens if inner tube is too small?
To sum up: If the tube diameter is too small, then it may not fit on your wheel rim. If the tube width is too small then you may have to over-inflate the tube to fill the bike tire and this will weaken the tube rubber, with the possibility of punctures.
Can I use the wrong size inner tube?
What happens if my inner tube is too small?
The inner tube should also match the tire width, but, because inner tubes are elastic, one inner tube may fit a range of tire widths. If the inner tube is too narrow for the tire width, it will become very thin when inflated inside the tire body. This will cause it to be more susceptible to punctures and failures.
What does the C mean in 700x23c?
700×23 and 700x23c are just the sizing for the bike tire. That ‘c’ is a reference to the historical ‘French system’ of tire classification. Read on for more detail and a recommendation for my favorite 700×23 bike tire and inner tube combo for this size. Recommendations: Name.
Will 700x25c fit 700x23c?
They’ll be fine – I’d certainly use them without question in a 23mm tyre. Most tubes cover a range like 18-25 and 25-38.