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Continental MTB Supersonic 26 inch Presta Inner Tube

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Please note: View 'Tyres Guide' below for ETRTO Sizing

Product Description

Mountain bike race tube with super lightweight construction
  • MTB 26 x 1.75 - 2.2in
  • Matches Supersonic tyre range in terms of performance and lightweight
  • Weighs only 112 grams
All tubes have a seamless construction, with a mould-cured vulcanisation, to ensure uniform roundness

Occasionally, without notice, manufacturers change product design and/or specifications.

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Inner Tubes Size Guide

 

Inner Tubes Guide

What Size Inner Tube Do I Need?

Follow these three simple steps to find the right size inner tube for your bike.

Wheel size diameter on tyre sidewall for correct inner tube sizing

1. Wheel Size

Inner tubes are made to fit specific wheel sizes, so you need to know what size the wheel on your bike is.

The easiest way to do this is by looking at the tyres on your bike. On the sidewall you'll see a combination of digits such as:

700 x 28c (road bike wheel) or 27.5 x 2.4 (mountain bike wheel)

It’s the first figure that shows the diameter of the wheel or the wheel size.

The next figure is tyre width which is the other measurement you need to know.

Wheel size diameter on tyre sidewall for correct inner tube sizing

2. Tyre Width

Inner tubes are designed to fit a range of tyre widths, so the next thing you need to know is the width of your tyre.

This is shown in the second number that’s printed on the side of the tyre.

700 x 28c (road bike wheel) or 27.5 x 2.4 (mountain bike wheel)

When choosing an inner tube you need one with a width range that covers your tyre width as well as exactly matching the size of the wheel. See the tables below for examples.

Note: Sometimes metric sizes are shown as c instead of mm. This is just a different way of saying the same thing. A 25c tyre is the same width as a 25mm tyre.

Inner tube size examples for road and mountain bikes

Mountain Bike Inner Tube Sizes

Wheel Size

Tyre Width (inches)

Inner Tube Size (inches)

26”

2.1”

26 X 1.75 – 2.4

27.5” or 650b

2.3”

650b x 1.75 – 2.4 or
27.5 x 1.75 – 2.4

27.5”+ or 650b+

2.8”

650b x 2.3 – 3.0

29”

2.4”

29 x 1.75 – 2.5

Road and Gravel Bike Inner Tube Sizes

Wheel Size

Tyre Width (mm)

Inner Tube Size (mm)

700c

25mm

700 x 20 – 28

700c

28mm

700 x 20 - 28

700c

32mm

700 x 28 – 38

700c

45mm

700 x 32 - 50

 

Inner tube size examples for hybrid and kids bikes

Hybrid and Touring Bike Inner Tube Sizes

Wheel Size

Tyre Width

Inner Tube Size

26”

1.85”

26 x 1.75 – 2.4”

700c

32mm

700 x 28 – 38mm

700c

40mm

700 x 32 – 47mm

28”

1.4”

700 x 32 – 47mm

Kids & Junior Bike Inner Tube Sizes

Wheel Size

Tyre Width

Inner Tube Size

12”

1-1/2 - 2-1/4”

12 1.5 x 1.75 - 2.125”

16”

1.75”

16 x 1.75 - 2.125”

20”

1.75”

20 x 1.5 – 2.3”

24”

2.2”

24 x 1.5 – 2.3”

3. Valve Type

There are two types of inner tube valve; Shrader and Presta. The easiest way to see which one you need is to look at the tube on your bike.

Schrader Valve

Schrader Valve

Easily identified by the 'car type' stubby profile.

These valves are often found on entry-level hybrid, mountain and kids bikes which run on lower tyre pressures.

It is worth noting that Schrader valves require a slightly larger hole in the rim. This means that you can use Presta valve tubes on a Schrader compatible wheel rim but not the other way around.


Presta Valve

Presta Valve

These have a long and narrow profile. They have a central core you unscrew before inflating the tube.

Presta valves are often used on road bikes which run at higher tyre pressures as well as mid to high-end mountain bikes.

These valves come in a range of lengths. Longer valves are designed for use with deep section aero rims.



ETRTO bike tyre sizing can be found on tyre sidewall

My tyre size looks different - ETRTO Sizing

Sometimes tyre size on the sidewall of your tyre is shown in the ETRTO format like this 54-559 or 23-622. ETRTO size tyres are the same size as Imperial / Metric tyres, it’s just that the measurements are shown differently.

All our inner tubes are listed in Metric or Imperial sizing but you can use the table below to convert your ETRTO size to Imperial for MTB tyres or Metric for road bike tyres.

 

Tyre and Inner Tube Size conversion charts

ETRTO / Metric tyre size conversion for road bikes

ETRTO Number Dimension
 700c road bike wheels
 18-622  700 x 18C
 23-622  700 x 23C
 25-622  700 x 25C
 28-622  700 x 28C
 32-622  700 x 32C
 37-622  700 x 35C
 47-622  700 x 47C

ETRTO / Imperial tyre size conversion for MTBs

ETRTO Number Dimension
 26" mountain bike wheels
 50-559  26 x 1.9
 54-559  26 x 2.1
 55-559  26 x 2.2
 58-559  26 x 2.35
  27.5" (650b) mountain bike wheels
 50-584  27.5 x 1.95
 54-584  27.5 x 2.1
 57-584  27.5 x 2.25
29"  mountain bike wheels  
 50-622  29 x 2.0
 54-622  29 x 2.1
 55-622  29 x 2.2

The Benefits Of Self-Sealing Inner Tubes

Punctures are inevitable. Instead of having to lug around spare inner tubes with you, you can opt for a self-sealing inner tube. These bike inner tubes are delivered with tube sealant already inside. When you get a puncture the sealant will plug the gap so you can keep riding.

Delivery & Guarantee

UK Delivery Information

Please Note: Due to the current circumstances we are experiencing high demand so we may take a little longer than usual to despatch your order. Our Warehouse and Bike Build team are up and running as normal and we are taking active measures to ensure that we are following the government guidance with social distancing and additional health & safety measures have been put in place throughout the business. Please rest assured we will do everything we can to get your order to you as quickly as possible.

We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.

Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.

Please note that Pre-Order dates can sometimes change due to updated stock information.

Click here for more UK and international delivery information.

Returns & Warranty

It's easy to return a product with our 365 day, hassle free returns. 

We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

For more information please visit our Returns & Warranty page.