Mountain Bike Tube Sizes

Effective top tube length is the length of a virtual horizontal line drawn between the top of the bike s head tube to the centre. Mountain bike sizing guide. Mtb wheels in particular can be further categorised by 26 inches 27 5 inches and 29 inches.

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Manufacturers listed mountain bike frame sizes can be.

Mountain bike tube sizes. Inner tube sizes vary by maker. Then within these categories there are further sub divisions such as 26 inch 27 5 inch and the 29ers commonly. Mountain bike tyre sizes are usually stated in inches. Mountain bike tubes range in size from 26 through to a 27 5 and 29.

Effective top tube is the horizontal distance from the centre of the head tube to the centre of the seat post. 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. Mtb tubes must be the correct width as well also measured in inches. These new sizes offer more speed and are generally better at soaking up the bumps.

The following sizes are common for mountain bike tyres regardless of whether your machine has 26in 27 5in 650b or 29in wheels. While you can find a variety of bikes with wheel sizes ranging from 16 to 27 5 inches the most common sizes include 26 inches 27 5 inches 29 inches and 700c. Finding the right inner tube depends on the size of the tires on your bike. When it comes to replacing your inner tube how do you know which size you need for your bike.

It s important for cross country riders who prioritise pedalling power. There are a myriad of wheel sizes for road mtb touring and children s bikes. Inner tubes vary in size depending on the circumference of the wheel and the width of the tyre. This measurement represents how a mountain bike fits while you re sitting on the saddle.

Traditionally they come with a 26 wheel but more recently we ve seen the launch of 29 and 27 5 650b wheeled bikes. Mtb s are engineered for off road riding. This is to allow the tube to expand to the correct size for your tires and can range from as narrow as an inch right up to a tire width of 2 5 or greater. Choosing an inner tube what size inner tube should i choose for my bike.

Use a tube within 3 8 inch of the stated width for road bikes. For example a 700c tube can be substituted for a 27 inch tube and vice versa. Depending on whether your bike is a road bike touring bike mountain bike or child s bike the diameter and circumference of the wheel can vary. For example choose a tube for a mountain bike if the width is within inch of the tire s stated width.

A tube with a close diameter measurement will also work.