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The European Tyre and Rim Technical Organisation is the European standard for the wheel indicating the dimensions, load and pressure to be respected. It harmonises the national standards in Europe.
For the road, you need a rigid rim, not too wide with a higher or lower profile depending on the desired performance.
For all-mountain riding, a low profile is ideal.
For cross-country riding, a lightweight, high-performance rim or a high-end aluminium rim (FZR-XC).
For gravity, free-ride, downhill, a very wide rim with a wide tyre to absorb the shocks.
For city, trekking and e-bike use, a versatile, double wall product, depending on the tyre's clearance and the rider's riding style, rather wide for comfortable use (20 to 23C) or narrower for more powerful use (19, 20C).
For cargo use, a robust double wall rim that will withstand heavy loads.
There are several types of wheel locks:
Sleeved rim: A piece, called a sleeve, is slid inside the rim profile to ensure the hoop is closed. This technique is the lightest.
The pinned rim: This method consists of using two inserts similar to mechanical pins (mostly steel) which are inserted inside the rim profile, in both channels, to create a closing link.
The majority of Mach1 rims are pinned. However, in recent years Mach1 has developed a real expertise in the use of pinned rims for higher end products. This solution has been translated into the Mach1 Light Technology.
The welded rim: For this closing solution, a special insert is used and functions as an alignment, the welding operation is then performed. This technique is not used by Mach1.
The wheel dimensions are expressed in inches (28, 29 etc...), this is the size of the whole wheel including the tyre.
These dimensions each correspond to a diameter expressed in millimetres, the ETRTO code.
Here are the matches:
28 and 29 inches: 622 (28 inches rims are more suitable for city bikes, while 29 inches rims are more suitable for mountain bikes).
700C: 622 (700C is used for road bikes, corresponding to the ETRTO 622 diameter).
27.5 inches: 584
26 inches: 559
24 inches: 507
20 inches: 406
The purpose of this rim is to shift the spokes to centre them between the hub flanges. By using an asymmetrical rim, the angles are reduced and therefore the difference in spoke tension and length on both sides of the rim is reduced.
It has several advantages:
- Balancing the spoke tension ensures that the wheel will last for a long time. Also, the spokes will more easily keep their original tension. Indeed, on a classic rim, the difference in angle formed by the spokes on the drive side and on the disc side, forces to adapt their tension so that the rim remains centred.
- This allows the chain to have more passage without the risk of touching the spokes (on the sprocket side, especially on a 12-speed cassette)
In a wheel, each spoke must have the correct tension for the wheel to be strong. The wheel is said to have a balanced tension.
The values of the spoke tensions vary according to:
- The final use of the bike (loads, competition...) and the type of bike
- Hub geometry
- The geometry of the rim (symmetry)
- The section of the spoke (diameter)
For example, all Mach1 double wall rims are guaranteed for a maximum tension of 180 kg per spoke. In general, the tension of a spoke is often between 70 and 140 kg.
Tubeless-compatible rims have a specific profile and have all the necessary features to ensure the sealing of a tubeless assembly. Their profile allows the tyre beads to be better maintained in the rim, to prevent the tyre from coming off the rim and to avoid air leaks (to have airtight rims).
Mach1 offers many tubeless compatible rims with the "Easy Tubeless Ready" technology we have developed.
To find out what pressure to use on a tyre, contact the tyre manufacturer or look at the tyre's sidewall where the pressure recommendations are written.
The width of the rim tape should be in line with the rim recess. If it is too wide it will tend to come off the rim, but if it is too narrow it will not ensure a perfect seal.
In all cases, it is preferable to choose a rim tape that is approximately 2 mm wider than the width between the rim hooks.
When using tape, we recommend two inner turns, with a minimum thickness of 0.1 mm. This gives a good guarantee of reliability and durability.
Mach1 has a number of international distributors, you can find their contact details on our distributor page.
Please contact us directly on our contact page and specify your request.
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