How to know what size tube for bike tire


Inner Tube Buying Guide - Which Inner Tubes for my bike? - Ribble Cycles

An inner tube is an essential part of any bicycle, that is unless you are running tubular or tubeless tyres. It is inevitable that at some point you will need to replace the inner tube on your bicycle, so it is always worth having a couple of spares so you can get back on the road straight away.

With the wide variety of different sized inner tubes, this guide is intended to help make it easier to choose the correct tube for you.

Inner tubes come in a wide variety of sizes, and also different valve types. Things to consider when selecting your inner tube are;

Size

  1. Wheel diameter - The diameter of the wheel will depend very much on the type of bicycle that you are using. They can vary from 12” all the way up to 29”.
  2. Tyre Width - Just like the diameter, the width of the tyre can also vary depending on the type of bicycle. They can go from a skinny 19mm on a road bike, to a huge 4inch on some mountain bikes.

Checking the Inner Tube Size You Need

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 ‘26x1.75’ which is for mountain bikes.

Inner Tube Valve Type

  • Schraeder valves – most people refer to these as ‘the same as on my car’. They are the chunkier looking valve, and are usually found on entry-level mountain bikes.
  • Presta valves – a much thinner valve, with a core that needs to be unscrewed before you can inlate the tube. This type of valve is fitted to all of our Ribble road bikes, and can be found on all good quality wheels. The valve lengths do vary in length, so if you are running deep section wheels, a longer one will be required
    • Latex Inner Tubes

      It is more than likely that the inner tubes you will have used are made of a butyl rubber. If you are looking for marginal gains a change to latex inner tubes can reduce the weight in your wheels where it really matters. It can also smooth out the ride.

      There are however two downsides to latex inner tubes. The first is that they lose air much quicker, and so will need to be pumped up more often. Not during a ride, but at least before every ride. The other downside is that they are a little trickier to fit, and can be caught in between the tyre and wheel causing them to blow as soon as you pump them up.

      View All Inner Tubes

      Posted by

      Andy Mc

      Andy is the Product Specialist and Content Writer at Ribble. He takes part in all disciplines of cycling, but can mostly be found either on his road bike or on the mountain bike trails.

      Customer Care

      If you are in any doubt about what is best for you then our Cycling Experts can help via email or telephone

      Email: [email protected]

      Tel: +44 (0)1772 963400

      How to Pick the Right Bicycle Tube Size

      Let’s be honest – tubes are a bit weird. Wiggly black bands of rubber, tubes are tedious to install, constantly need to be re-inflated and can be defeated by the tiniest thorns. When it comes time to purchase a new tube, how do you know which one to select?

      Between the dozens of size options and the various valve stem types (Presta, what is that?), selecting the correct tube for your bike can be challenging. Check out our video below, or scroll down for a quick photo guide to help you select the perfect tire tube for your bicycle:

       

      Step 1: Picking the Right Tube Size

      There are two important dimensions you must know when selecting a tube: The diameter of your wheel and the width of your tire. You need both to select the correct tube size. These dimensions can be found on your tire:  Diameter x Width.

      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. For example, a 26 x 1.75 size means the tire diameter is 26 inches and the tire width is 1.75 inches.

      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.

      Some tires have dimensions in millimeters, but the basic measurement structure is still the same: Diameter x Width. Instead of inches, you will instead see something like 700c x 18 mm. The letter at the end of the tire diameter is a carryover from an old French system that used letters a, b and c to designate inner wheel rim diameters.

      Step 2: Picking the Right Valve Stem

      After you know your tube size, you need to select your valve stem type. The valve stem is the metal part of the bicycle wheel that sticks out and allows air to go into (and stay in) your tire. There are three types of valve stems: Schrader, Presta and Woods/Dunlop. The Woods (or Dunlop) valve stem is extremely rare and typically only found in the Netherlands or Asia, so we won’t spend any time on it here.

      Schrader valves, on the other hand, are the most common valve stems found on bicycles. The most recognizable of the bunch, sometimes they are referred to as standard valves. An easy way to remember if you have a Schrader valve is to think of the “S.” Schrader valves are short, sturdy and standard. If you don’t know what valve stem you have, it is likely a Schrader.

      The last valve stem type is Presta. Presta valves are traditionally found on higher-end bicycles preferred by professional cyclists. Think of the “P” in Presta standing for professional, performance and premium. If you have a Presta valve, you usually know it.

      Step 3: Durability -- Self-Sealing or Basic Tubes?

      The last consideration you need to keep in mind when selecting a tube is durability. There is no reason for you to suffer from flat tires - Riding flat free can be a reality. Self-sealing tubes are heavy duty and designed to stop flats for up to two years! To gain that type of protection, you need to purchase tubes that come pre-installed with Slime tire sealant.

      Alternatively, if you already have empty tubes, but want the protection that self-sealing tubes provide, you can insert the tube sealant yourself. Learn more about tube protecting sealant here.

      Congratulations, you are now a tube expert! When purchasing tubes, if you consider tire size, valve stem type and durability needs, then you will never select the wrong tube again. Go forth and start riding!

      How to choose a bike tube. Size Ratio Chart

      Every cyclist needs to be sure that the transport during trips around the city or rough terrain will definitely not let you down. And the most important thing in the wheels is the right bike tube. To do this, sometimes there is not enough simple knowledge about how to choose and buy tubes for a bike, and what size they should be.

      The most important things to look for before buying a bike tube are:

      • size;
      • width;
      • nipple type.

      Before the advent of the mountain bike market, tubes, motorcycle tubes and car tubes were viewed in the same way. Later it became clear that the characteristics and dimensions of bicycle tubes are something special, and the approach to production has completely changed.

      What size bike tube to choose

      When it comes to buying the right tube for a bike, it's important to consider size differences. Tires always show the dimensions and allowable pressure for suitable tori. Marking types may vary. nine0003

      1. Specify exact size. For example, 28x1.5 means the tube fits a 28" wheel that is 1.5" wide.
      2. Single rim diameter and multiple widths. The entry 26x1.75/1.95/2.125 means this torus will fit all 26 wheels with a width of 1.75 to 2.125 inches.
      3. Specifies several possible wheel sizes and widths. It looks like this 28/47-622/635. Indicates that the product will fit a tire from 28 to 47 mm on a rim from 622 to 635 inches. nine0008

      Choosing the right inner tube for your bike will greatly improve your ride and reduce the chance of damage.

      Read the label and stay safe. A smaller tube will fit a larger wheel, but not vice versa. You should always remember that the dimensions of the cycle chamber indicated on its surface and on the tire must match.

      The required parameters are indicated in the ISO system in mm or inches. In order not to get confused in the sizes and markings that different manufacturers apply in different systems, use the conversion table from one system to another. nine0003

      Size ratio table for different marking systems

      x all options 9004 2020 28 x 3/4 28 x 3/4 28 x 3/4 28 x 3/4 28 x 3/4 28 x 3/4 28 x 3/420 700x38s 700-40c 9 bicycles: "Ukraine", "Minsk", "Sura", "Velta", "Aist" (111-321, 111-322). 900x 44-622 9005 26 X 1. 25 26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 x 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.26 X 1.AR × 1. English children's and American firm Schwinn 9005 28-540 9003 European bicycles, most wheelchairs 9005 9005 9 9005 335 x 3/3/3/3/3/3/3/3/3/3/3/3/3/3/3/3L bicycles 9005 x 1.5
      Rim bore size in mm according to ISO Tire size in inches French size Size in mm in ISO (width-landing diameter) Explanations
      681 22-681 Sports cycle B-64 ″ Record (1958g)
      642 700A Size
      635 28 x 1/2 700B 40-635 Road models of American, Danish, Chinese, Indian-Indian production 29 2 x 7/8 22-630 Shrose bicycles, including old models
      27 x 1 25-630
      27 x 1/8 9005 28-630 9. 0056
      27 x 1/4 32-630
      27 x 1 3/8 37-630
      700С This size was invented by marketers for tires with a bore diameter of 622 mm. They differ from 28 only in tire height.
      28 x decimal 700C For 622 mm tires. nine0056
      28 x 3/4 700-18C 700x18s 18-622
      700-19S 700x19s 19-622
      20-622
      x 1 1/8 28 x 1 5/8 x 1 1/8 700-28C 700x28C 28-622
      28 x 1.20 700-30x30s 700x30s 30-622
      28 x 1 3/4 28 x 1.5
      28 x 1 1/2 28 x 1 5/8 x 1 3/8 700C 700x35C 700x38C 37-622 "," Aist.
      27 x 1 1/4 28 x 1 5/8 x 1 1/4 700-32С 700х32С 32-622 Road and sports-touring bicycles, "Tourist", "Sport", "Sputnik"
      28 x 1 5/8 x 1 1/4 Outdated Canadian designation F13
      28 x 1.4 700-35C 700x35s 37-622 Roads Roads. x 1.5 700x38C 700-38C 700-40C 700x40C 40-622
      28 x 1 3/8 x 1 5/8 37-622
      700-42s 700x42s 42-622
      28
      -47C 700x47C 47-622
      28 x 2.00 700-50C 700x50C 50-622
      600 22 (23, 24, 25, 27, 28, 30) -600 Old Soviet sports and track bicycles
      599 32-599 Very old American light bikes.
      26 x 1 7/8 47-599 ZIF (Penza) 190-535 "Samson"
      597 26 x 1/4 (EA1) (England) 9 9 9 32-597 Old English sport and club bikes.
      26 x 1 3/8 (S-6) 37-597 Light bicycles from the American company Schwinn.
      590 26 x 1 1/8 28-590 Soviet bicycles ZiF (Penza), Diana, Prima, Virazh, Relay, Sura, Breeze ”, “Tempo”. American and English 3 and 10 speed.
      26 x 1 1/4
      26 x 1 1/2 650B 37-584
      27. 5 х 1.5 40-584
      27.5 х 1.65 44-584
      27.5 x 2.1 54-584
      27.5 x 2.25 57-584
      27.5 х 2.3 60-584
      27.5 x 2.4 62-584
      27.5 х 2.8 70 -584
      571 26 x 3/4 650x20C 20-571 Triathlon, time trial, small road bikes.
      26 x 7/8 650x23s 23-571
      26 x 1 650c 23-571
      26 Road Schwinn
      559 26 x 1.0 25-559 Most mountain bikes. Classic landing diameter for 26 wheels. nine0056
      26 х 1.25 32-559
      26 х 1.35 35-559
      26 х 1. 4 37-559
      26 х 1.5 40 -559
      26 х 1.6 44-559
      26 х 1.75 26 х 1.75 х 2 47-559
      26 х 1.9 50-559
      26 x 2.00 52-559
      26 x 2.10 54-559
      26 x 2.15 55-559
      26 х 2.25 57-559
      26 х 2.3 60-559
      26 x 2.4 62-559
      26 x 3.0 75-559
      547
      24 × 1 3/8 (S-5) Children's American bicycles of Schwinn
      540 24 x 1/8 600a
      24 x 1 1/4 32-540
      24 x 1 3/8(E-5) 24 x 1 3/8 A 9005 6
      533 24 x 1 1/2 37-533 "Salute", "Altair", "Ervi", "Eaglet", "Erelyukas", "Swallow" ("Kregzdute", "Kregzhdute" - Siauliai Bicycle Plant Lithuania). This is the Soviet standard and tires with a diameter of 533 mm are produced only with a width of 37 mm. Be careful when replacing because not all 24 inch tires will fit 533 wheels.
      520 24 x 1 25-520 Road wheels for kids bikes
      507 5 9 560056 40-507 Mountain children. “Salut”, “Altair”, “Ervi”
      24 x 1.75 47-507
      24 x 2.0 50-507
      9005-95-50
      24 х 2.25 57-507
      24 х 2.35 60-507
      24 х 2.5 62-507
      24 х 2.6
      20 x 1/4 30-451
      20 x 1 3/8 37-451
      445 20 X 1/4 9005 9005 9005 9005 9005 9005 9005 9005 9005 9005 9005 9005 9005 9005 9AT 445 “Schoolboy” (old Soviet models)
      440 500A European folding children's bicycles
      419 20 x 1 3/4 0056
      406 20 x 1. 25 32-406 Most BMX bikes, kids and folding models. "Venta" (folding model 175-811). "Stork" (folding, model 113-322). "Tisa-2", "Cross", "KAMA", "DESNA", "Schoolboy", "Velta Kama", "Dubisa" (Siauliai bicycle factory), "Eureka" and other folding and old Soviet models. Folding Mustang
      20 x 1.35 35-406
      20 x 1 3/4 20 x 1.5 40-406
      20 x 1.75 20 x 1.75 x 2 47-406
      20 x 1.95 50-406
      20 х 2.125 57-406
      20 х 2.35 60-406
      20 х 2.5 62-406
      20 х 2.6 65 -406
      16 x 1 1/8 28-349 Old Moulton, Brompton and other folding bikes, ligerade front wheels, kids bikes.
      16 x 1 3/8 37-349
      340 4005 Children's European bicycles
      317 16 x 1 3/4 Schwinn American children's bicycles
      305 16 x 1. 5 40-305 Children's bicycles, some folding, touring and bicycles.
      16 х 1.75 47-305
      16 х 2.0 54-305
      16 х 2.125 57-305
      16 х 2.5 62 -305
      288 14 x 1 3/8 350A 37-288 Children's bicycles, jackets
      254 40-254 Children 14 x 1.75 47-254
      14 x 2 54-254
      239 12 1/2 x 1 3/8 x 1/4 300-32A 300x32a 32-239 Children's bikes, balance bikes
      205 12 1/2 x 2 1/4 56-205 KVD children's bicycles, sometimes suitable for baby strollers (Dutiki tires)
      20059 9ATH 12 x 1. 75 12 1/2 x 1.75 12 1/2 x 1.9 47-203 Small children's bicycles, runaways, baby strollers
      12 x 1.95 9005 54-203
      2 1 1 1 1 1 1 1 /2 x 2 1/4 R 57-203
      12 1/2 x 2 1/4 62-203
      152 10 x 2 54-152 Tires for self-scatters, tunkers for young children, taces and television taps and television tires and television tires and television tires and television tires and television tires and television tires and carts , Children's strollers
      137 8 x 1/4 32-137

      How to choose a bicycle camera according to the main characteristics of

      Many specialized stores offer a huge range of parts and components for bais. The Velo-Moto online store in its catalog opens the world of cycling for professionals and amateurs. nine0003

      Once you've decided where to buy your inner tube, it's important to focus on the other selection criteria after width and size:

      • nipple;
      • fortress.

      These are important indicators that together ensure your safety, speak of a reasonable approach.

      Nipple

      This is a piece that consists of a tube and is equipped with a special check valve for air inflation.

      There are rubber ones - not very reliable, not expensive, there is a high probability of separation and damage. There are metal ones - reliability and price are higher. nine0003

      According to the type of valve, the nipples are divided into 3 groups.

      1. Dunlop (Dunlop) was used on bicycles of the USSR. Meets now. A valve is inserted inside it, which is held by a nut.
      2. Presta (Presta) - sports or French. Used for road (road) and sports bikes, for hybrid models.
      3. Schrader (Schroeder) - automotive, the most common among bicycle cameras. It has a diameter of 8-8.5 mm and a length of 40 mm (rarely 60 mm). You can pump up such a chamber at any tire fitting or with a conventional car pump. nine0008

      Durability of the inner tube

      Those who ride more than once a year know that a very quick and reliable way to protect their inner tube from damage is to purchase a special filler for it, anti-puncture. You can initially choose a product with a ready-made protection system, but professionals recommend buying a substance separately and pouring it into the “donut” yourself.

      In case of accidental damage, the composition itself comes out from the inside, which will clog the hole. There is a margin of time to get to a more or less equipped point and provide “first aid” to your wheeled friend. On the road, you should always take a spare wheel and a repair kit with you, you never know what can happen. nine0003

      In everything it is better and more correct to adhere to the “golden mean”, this is the opinion of managers from the Velo-Moto online store. It is important not to go beyond the recommended dimensions, to listen to expert opinion. Then your bike will delight you for many years with a high-quality ride, excellent speed and rich impressions. You can view the catalog of tires and cameras here.

      Bicycle inner tube selection guide


      What is a bicycle inner tube?

      Let's start with the basics... What is a cycling tube? A bicycle bladder is a ball-like structure that can be inflated and deflated using a valve. When inflated with air, the chamber fills the tire, giving you a comfortable and safe ride. nine0003

      There are also tubeless bike tires, but most likely your bike is fitted with tubes.

      Bicycle inner tube is always matched to the size of the tire fitted. There are quite a few different wheel diameters on the market right now, which can make it difficult for you to find the correct tube size for your bike.

      Which inner tube do I need for my bike?

      Tubes are available in different sizes and with different types of nipples. These are two key factors to consider when choosing a bike tube. nine0003

      Tubes vary in size according to tire diameter and width:

      • Wheel diameter / circumference. Depending on the type of your bike - road, touring, mountain or children - the diameter / circumference of the wheel may vary. Within these categories, there are different diameters of tires, and, accordingly, bike tubes: 26 inches, 27.5 inches, 28 inches, etc.
      • Width. To the variety of diameters, different widths are added. Thus, a narrower chamber is used for road tires. Wider tires and tubes are used on mountain bikes. nine1246

      Selecting the wrong diameter may result in a tube that is too long or the wrong width and the tube cannot fill the tire.

      So how do you know what size you need?

      There are two surefire ways to find the correct tube size for a bike:

      1. Check the tire sidewall. The best way is to look at the markings on the sidewall of your tire. On it you should see something like "700x23c" on a road bike, or "29x1.9" on a mountain bike. The first number in this sequence refers to the circumference of the wheel; the latter refers to the tire width. Additional markings on the sidewall of a tire may include ISO ETRTO international size - this would look like "23-622" for a 700x23c tyre, or "50-559" for 26"x1.9" tires. Size ratio table of various specifications.
      2. Check your bike's manual. Another way to determine your tube and tire size is to look at your bike's manual. Chances are you haven't changed the specification since you originally bought the bike.

        Check the sidewalls of your tire to determine its size

        Valve type - Schrader or Presta

        Valve used to inflate/deflate the tube. There are two main types of valves: Schrader and Presta. They are fairly easy to identify visually. nine0003

        Presta valves are narrower. Schrader valves are shorter and thicker (used on cars).


        Learn more