Lowest Price of the Year Guaranteed
New electric bicycles
More than 4000 references in stock
.jpg)
.jpg)
- On sale
Planet Air Tyre Black / Cream 26x1 1/8 (28-590) 650x28A Unit
How to choose the right cover
How to know the equivalence of my roof
Tyres are one of the most essential parts of our bicycle. They are responsible for keeping us grounded, cushioning us from small imperfections in the road surface, and providing us with comfort and ride quality.
Tyres are the only points of contact between the bicycle and the ground. For this reason, they are, so to speak, your feet while you are on the bicycle. It is therefore necessary to choose a tyre that perfectly suits your needs, whether for urban use, mountain biking, road cycling, mixed use, cargo bikes, etc.
Below, we will explain each size in detail and its equivalents.
Measures
There are three ways to measure tyres.
-ETRTO system
-English system (inches)
-French system
In the image, we can see that we have the following indications:
35-584 (650x35B – 26x11/2)
-The indication 35-584 refers to the ETRTO (European Tyre and Rim Technical Organisation).
-The indication 650x35B refers to the French measurement system.
-The indication 26x11/2 refers to the inch measurement system.
We will focus on the ETRTO system as it is much simpler.
ETRTO
First, the width is expressed, which can vary from 20 to 60, usually a two-digit number (AA). On special occasions, the width may be greater or less. Next, the rim diameter or inner diameter of the tyre is indicated, which is usually a three-digit number (DDD), such as 559 or 622. The standard expression would be as follows:
AA-DDD
An example would be: 37-622, where 37 is the tyre width and 622 is the inner diameter of the tyre (in this case 622 mm).
Advantages of ETRTO
•Measurement in millimetres, therefore the measurement is very accurate.
•Very simple measurement system, with only two very distinct measurements.
•The measurement of the inner diameter of the tyre is the same as the diameter of the rim.
which tyre should you choose?
In order to give you the best advice, we need to know how you will be using the bicycle and the type of environment you will be riding in.
Tyres for classic bikes are mainly designed for urban environments (asphalt), but they are sturdy enough to ride on cobbled roads, dirt tracks, etc., as long as they are not mountain bike trails.
Rim width
This measurement is the distance between the two walls of the rim. Bear in mind that the rim width must not be greater than the wheel width you have chosen. In other words, if you have a 30 mm wide rim, you cannot fit a 28 mm tyre; you need to fit a 30 mm tyre or wider (always referring to ETRTO measurements).
Sporadic use of unpaved land
For this type of use, we recommend a tyre between 28 and 32 mm (ETRTO), because, considering that our main environment will be paved terrain, we need the smallest tyre possible to offer the least amount of friction, but large enough so that we do not get a puncture as soon as we ride onto unpaved terrain.
Mixed or freight use
If we are going to be this type of user, we will not mind riding on a dirt road as much as riding on the best paved city roads, so we will need a wheel with a tyre between 32 and 40 mm (ETRTO) with as little friction as possible. This type of tyre is also recommended for bicycles that are overloaded or even equipped with a child seat.
Strictly urban use
This environment is probably the most favourable for avoiding punctures, as riding on paved surfaces also ensures a smooth ride with few potholes. For this type of use, we recommend a tyre between 23 and 25 mm (ETRTO), as the narrower the tyre, the less friction there will be and the easier it will be to pedal.
Wheel arch
The wheelbase is the distance between the rear dropouts or the width of the fork. The width of the tyre cannot be greater than the distance between the rear dropouts on both sides, because otherwise the tyre would get stuck and the wheel would not be able to turn. In conclusion, the tyre cannot be wider than the wheel clearance. For example, if I have a bicycle with a wheel clearance of 31 mm, I cannot fit a tyre that is 31 mm or wider, because the wheel would be blocked. I would have to fit a tyre with a maximum width of 30 mm.
It should be noted that the wheel clearance decreases when mudguards are fitted.
Tyre design
The tyre tread can also vary depending on the environment and the user's needs.
Slick or treadless tyre: Strictly for urban use and in cities with little rainfall, offering very good grip in dry conditions and low friction.
Semi-slick or tyre with slight tread: Urban or semi-urban use, for rainy cities, with a lot of dust or sporadic use on unpaved roads. Offers good grip on paved terrain (wet or dry) and decent grip on unpaved terrain.
Treaded tyre: This type of tyre is the most versatile, adapting to all conditions in your environment and offering good grip in all conditions suitable for a classic bike.
