What is standard Presta valve length?

Presta valves are often available in 40, 48 and 60mm lengths. If you have a deep-dish rim you will need to be sure the valve you are purchasing is long enough to attach your pump properly. The valve stem length will often be mentioned after the valve type if it is a Presta.

What size is a bike tire valve?

Valve length There’s no standard as to how much longer a long valve tube is, but most are around 60-80mm. For comparison, a standard length tends to be around 40mm. If your rims are really, really deep you’ll need to get a valve extender. These little widgets add length to the valve stem.

Why are there different lengths of Presta valves?

Inner tube valve lengths Presta valves come in different lengths too. With deeper section rims becoming more common, it’s important to make sure that your valve is long enough to protrude through the rim and let you attach a pump to it. Valve extenders screw onto the top of the Presta valve.

What size is a bicycle Schrader valve?

Presta valve stems are 6 mm in diameter, whereas Schrader valve stems for bicycle tires are 8 mm, allowing Prestas to be used on narrower, high-performance rims as on road racing bicycles.

Are there different sizes of Presta valves?

The outer valve stem is manufactured in various lengths for different applications and has a narrower diameter (6 mm (0.24 in)) than Dunlop and Schrader valves (8 mm (0.31 in)).

How do I choose valve length?

In most cases, adding 15mm to the height of the rim is a reasonable rule of thumb when it comes to deciding on a valve length. That extra 15mm is important because it provides enough length to fit any pump head.

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. 700C (ISO size 622) is the most commonly used size for modern road bikes.

What do bicycle tire sizes mean?

The first number is the diameter of your wheel. The second number (after the X) is the width of your tire. The range for widths is usually between 1 and 3 inches. For example, a 26 x 1.75 size means the tire diameter is 26 inches and the tire width is 1.75 inches.

How do I know my bike tire size?

Check your tire’s sidewall —the numbers there indicate your tire size (roughly its outer diameter and its width, but not always in that order). Typical road bike tire: 700 x 32c indicates a tire that has an outer diameter of 700mm and a width of 32mm.

Does valve stem length matter?

Yes it’s the length. Longer valve is for deeper section rims, so look at the valve length you have now and whether it needs to be longer. A longer valve stem than needed won’t hurt anything.

What valve do I have on my bike?

There are two basic types of valves that you’ll find on bikes: Presta and Schrader. For the most part, inner tubes and tubulars on road bikes will use Presta valves, and mountain bikes will use Schrader valves.

What does Schrader mean?

Schrader is a family name very common roughly within the Triangle Hannover-Hamburg-Berlin within Germany (so-called “Eastfalia”, part of today’s states of Lower Saxony and Saxony-Anhalt). It means tailor.