Nutrak Swift 700c Road Tyre

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

Product Description

Key Features:
  • Wire bead multipurpose compound road tyre for commuting and training
  • Slick centre tread for enhanced rolling resistance
  • Channelled side tread aids water displacement
  • 27TPI
  • Colour Black
  • Wheel Diameter 700c

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

Tyre Size Guide

 

Tyre Size Guide

Whether you are replacing a worn out tyre or want a performance upgrade, it is essential that you choose a tyre that is compatible with your bicycle as well as your riding style.

To find out which size tyre you will need have a look at the sizing information on your existing tyre. You can find this information on the side wall of the tyres, either in coloured print or embossed in the rubber itself. Both rim diameter and tyre width are shown in the size info.


Road  bike tyre sizing

Slim 700c road bike tyres on a Merida road bike

700 x 23c

A standard 700c road bike rim with a 23mm tyre width.

MTB tyre sizing

Knobbly wide mountain bike tyres on a rocky trail

27.5 x 2.3

A 27.5” mountain bike rim with a 2.3” tyre width.

You will notice that road bike tyres tend to me measured in metric units while mountain bike tyres use imperial units.


What Size Tyre Do I Need?

Ypu need to knnow your wheel size and tyre width when chosing a replacement tyre for your bike

Wheel size diameter on tyre sidewall for correct inner tube sizing

Wheel Size

Tyres 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

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.


Traditional and ETRTO sizing

Sometimes the sizing info is listed in two different ways; the traditional sizing method shown above and ETRTO sizing which lists the tyre width first and the rim diameter second. The rim diameter size is measured differently with ETRTO, for example:

23-622

This is a standard 700c road bike rim with a 23mm tyre width, which is the same size as 700 x 23c. 

We recommend that you use the traditional sizing method wherever possible as most tyres that we stock use this system.

Cube road bike with 700c tyres

Traditional and ETRTO tyre size tables

If you are unsure which tyre size you need you can use our handy comparison table to find the correct size tyre

Road bike tyre sizes

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

MTB tyre sizes

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

What are the different types of bike tyres

While road, mountain and hybrid tyres have their own specific differences there are some features that are common to all tyres.

  • Clincher tyres - most bike tyres have a bead which hooks onto the rim to keep the tyre in place. Traditionally this bead is made from wire which is tough but heavy. Premium tyres use a folding Kevlar bead which is equally as strong as wire but is much lighter weight.
  • Tubeless tyres - while regular clincher tyres require an inner tube to keep them inflated tubeless or tubeless ready tyres form an airtight seal with a compatible rim so you don’t need an inner tube. These are most commonly found on mountain bikes as they can be run at lower pressures without risking punctures.
  • Tubular tyres - These are specialist road bike tyres that have the tube built into the tyre and are then glued onto a compatible rim.

Frequently Asked Questions

What size tyre do I need for my bike?

Look at the side wall of your tyre for any printed numbers indicating the size and width.

How do I know my bike wheel size?

The easiest way is to look at the side of your tyre. The size and width are printed on the tyre.

How do I choose a bike tyre?

Once the compatible size is known, choose an appropriate tread for the conditions you ride in.

Can I fit wider Tyres on my bike?

Look at your fork and frame where the tyre passes through, measure any available clearance to gauge what width tyre will fit.

Is a 28 inch tire the same as 700c?

700c wheels have a diameter of 622mm. While most 28 inch tyres are for a 622mm wheel, some are not. Check the ETRO number on the sidewall to confirm.


Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!

Road Bike Tyre Guide

 

Road Bike Tyre Guide


Overview

Road bike tyres make up a huge part of how a bike rides. This simple component of your bike may not seem as important as brakes or even a frame, but because they are the only part of the bike that actually touches the road, they’re vital. When deciding which road tyre is right for you, it’s important to consider a few aspects of tyres, and in this road tyre guide we’re going to break down what makes tyres different from each other.


Size

Road bike tyres come in a fairly limited selection of sizes. Through the years tyre size has been very much driven by what the pros use, and it’s thankfully moved on from the very small 18c tyres of yesteryear. Nowadays, road tyres generally come in three sizes: 23c, 25c and 28c. The numbers more or less equate to millimetres, and refers to both the height and the width of the tyres, so a 25c tyre would be about 25mm tall and wide.

Giant road cyclist racing on TCR

Most race bikes these days will come with either 25c, and these sizes are best for minimising rolling resistance. For endurance or sportive bikes, 28c tyres are most often used, allowing for greater comfort over long distances. Wider tyres will also be able to deal with rougher roads easier, and you’ll sometimes see 30c or even 32c tyres on some endurance bikes, catering to rough roads and cobblestones that are encountered in Europe. Some bikes are now featuring even wider tyres, catered to a greater variety of surfaces, and these gravel bikes can have 32c-40c tyres. You can go to our tyre size guide for more details.


Tread

Tyre tread refers to the pattern on the top of the tyres. This design affects the performance in terms of steering precision, grip and water displacement. Road tyres most often come with slick or smooth designs, as this helps reduce rolling resistance. It also helps increase grip on smooth surfaces, helping keep your cornering speed high.

Front view of Liv road bike

Compound

The compound of the tyre is the quality of the rubber that’s used. It makes up the characteristics of the tyre: how it rides, feels and performs. Softer compounds give greater grip, but comes with the cost of faster wear, while harder compounds will last longer, but not provide the same level of grip. Most times more expensive tyres will have softer compound rubber for greater performance.

Liv road bike with multi colour design

Continental’s Black Chili compound is engineered to balance rolling resistance and grip, using Activated Silica Compound technology. Maxxis has their 3C Triple Compound that uses a harder, faster rolling rubber in the centre and two progressively softer compounds on the sides, providing greater grip.


Protection

No one likes flat tyres, so puncture protection is always one of those important deciding factors in tyre choice. Many tyres have a layer beneath the tread that helps prevent punctures, with more expensive options either having a greater amount of protection, or better strength to weight protection.

Giant flat bar road bike with disc brake wheels

As with many cycling components, there’s a balance between a benefit and how much that benefit weighs. And so, with puncture protection this is also the case. Some tyres like the Continental GatorSkins offer fantastic protection, with a little compromise in weight, but make for excellent winter or training tyres. Going tubeless also significantly reduces the risk of punctures. For more on tubeless, see below.


Weight

As with everything else on your bike, one of the biggest factors when choosing tyres is their weight. Because rolling mass can play such a large part in how your bike rides, affecting rolling resistance and handling, it’s important to balance the benefits of a particular tyre with its weight.


Tubes/Tubular/Tubeless

Standard bicycle tyres use tubes for inflation, but that’s not the only option these days. In fact, there’s three options to keep air in your tyres, and they all have their benefits and drawbacks.

Tubes

The standard option for inflation, inner tubes give you the easiest inflation because you’ll always have tubes available at every bike shop around. They are used in clincher tyres, which are the standard tyres that use beads around the edge to fit into the hook of the rim. Tubes are the most common use for inflating clincher rims, and provide the easiest way to get air into your tyres. And if you get a puncture, it’s easy to replace the tube. Having said that, though, it’s easier to puncture than tubeless.

Liv road bike with drop handlebars

Tubular

Tubular tyres have a history in racing and provide many benefits to the serious road cyclist and racer. Tubular tyres don’t use a tube, and are fully enclosed all the way round, as compared to clinchers that have an opening where they fit into the rim. They are lighter than clincher or tubeless tyres and offer superb rolling, the fastest around. Which is the obvious reason that you’ll find them on Peloton and on the top racer’s bikes, winning races.

Road cyclists riding up hill

The downsides are that you need a specific rim for them, as tubulars need to be glued onto the rim. If you get a puncture, then you need to remove the whole tyre and replace it with a new one, gluing it back on. If you want the best performance, tubulars are the way to go, however, racers who have a team of mechanics will benefit from them the most.

Tubeless

While it’s been around in mountain biking for some time, tubeless tyres are becoming more popular in road biking, for good reason. Tubeless sealant within the tyre dries when it makes contact with air, so any potential punctures are sealed up almost instantly.

Road Bike Tyre Guide

With tubeless tyres, you can run lower pressures without the risk of punctures, giving you greater comfort and potentially more traction. And because there’s one less layer between you and the road, rolling resistance is reduced, making you faster. The downsides can be that you need specific tubeless rims and tyres, which aren’t as common as general clinchers, and can be more expensive. But it seems worth the price for faster riding and fewer punctures.


Pressure

Tyre pressure can completely transform how your bike rides, being the only real suspension that a road bike has. It’s important to strike the balance between cushioning, rolling speed, and protection. Thankfully, some of those go hand-in-hand.

Greater pressure will help prevent punctures and generally decrease rolling resistance, while lower pressure will give more comfort. Traction and optimised performance can be found when the right tyre pressure is used. It’s important to be aware that tyre pressure depends not only on what tyres you use, but on your weight. Heavier riders will need greater pressures and the opposite for lighter riders. See our tyre pressure guide to find out the best pressure for you.

Road cyclist training in hilly area

Winter tyres

As well as making the roads more slippery wet weather throws up more debris. This means that the best winter road bike tyres offer improved puncture protection and better grip without slowing you down too much. Tyres like the Specialized Roubaix Pro are very tough and remarkably grippy while still rolling quickly.

Compound

The key to grip in wet conditions is the rubber compound: hard compound tyres are durable and roll quickly but they’re not so grippy in the wet; soft compound tyres are very grippy, but they’re slower rolling and wear quickly. Dual compound tyres offer the best of both worlds. The softer compound on the shoulders of the tyre gives you extra grip when you lean the bike into a corner while the harder compound in the centre keeps you rolling quickly and prolongs the life of the tyre.

two road cyclists in winter

Puncture Protection

A protective layer under the tread is what you need to reduce your chances of getting a puncture. The key here is to offer extra protection while still allowing the tyre to be flexible and subtle enough to roll quickly and comfortably. Continental’s Duraskin layer featured in their very popular Gatorskin winter tyre and Specialized’s Armadillo flat protection are good examples of well-balanced puncture protection.

puncture protection layer

Size

As well as being more comfortable, wider tyres offer more grip, so you’ll have more control on slippery road surfaces. A useful trait for winter cycling. The higher volume also means you get more air between the wheel rim and the road. This means that the inner tube is less likely to get pinched and puncture if you roll over an object. Many tests have shown that wider road bike tyres actually roll better than very narrow ones.

cycling on a wet road detail

Tread

While deep treads in motor vehicle tyres squeezes water out from under them, road bike tyres are too narrow to aquaplane at normal speeds. This means that heavily treaded road bike tyres are unnecessary on smooth surfaces. Slick road bike tyres are fine in wet conditions on normal roads as it’s the rubber compound that has more effect on grip.

cycle race in the rain

Delivery & Guarantee

UK Delivery Information

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

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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.