FAQ: What Size Tube For My Bike?

What is a 700c bike tube?

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.

Are bike tubes the same size as tires?

The tube should match the tire size diameter closely. However, tires that are close in bead diameter may use the same inner tube. For example, an inner tube for an ISO 630 tire (27-inch) will also fit an ISO 622 (700c) tire.

What is the standard road bike tube size?

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.

How much does a bike inner tube cost?

The average price of a bike tube costs between $5 and $9. You can find tubes for as little as $2 and up and even some models beyond the $35. Specialized tubes and puncture-resistant tubes will cost more than traditional bike tubes.

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How do they measure bike size?

Adult bikes are measured by their frame size. Most manufacturers now measure the frame from the centre of the crank axle, to the top of the seat tube. Most road bikes are measured in centimetres (cm), whereas mountain bikes are generally measured using inches (in).

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.

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 there a difference between 700 and 700c?

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. That “700c” tire size has a 622 millimeter bead seat diameter.

Do bike tire tubes have to be exact?

Since tubes are flexible and stretchy, they’re typically sold in a range of widths. You just need to make sure the tire diameter for the tube is exact. While these are a few of the common tube widths you may see at stores and online retailers — like REI and Amazon — always go by what’s written on your bike.

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Can inner tubes be too big?

If the inner tube is a lot larger than the tire, it will cause folds and wrinkles inside the tire, which may affect your ride. If you have a tube that is only a little bit larger, then it probably won’t make a difference. While larger tubes will weigh more, they will retain air better.

Will a 12.5 bike tire fit on a 12 rim?

Registered. With a 12.50 you just need to be careful around curbs cause theres not much of a sidewall to protect the wheel. But you can definitely run a 12.50 with a 12″ wide wheel.

IS 700c the same as 29?

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. 650B (ISO size 584) is used for some randonneur bikes and other specialized bikes.

How thick is a bicycle inner tube?

A thin inner tube is approximately 1.5mm to 1.75mm thick. A heavy-duty tube is around 2mm to 3mm thick. And a super-heavy-duty tube is 3.5mm to 5mm thick. The weight of a thin 110-90-19 inner tube is about 1230 grams (2.71 pounds), while a 3.5mm super-heavy-duty 110-90-19 weighs 1720 grams (3.79 pounds).

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