A starting point for tubeless pressure on 9th Wave rims, built from our own test rides. Set it, ride it, and adjust from there.
mm
mm
Actual width as printed on the tire.
kg
Everything the wheels carry.
bar
This is a starting point. Rider weight, terrain, tire casing and personal preference all change what feels right, so adjust from here in small steps of 0.1 bar. The result never goes above the lowest of the rim maximum and the maximum printed on your tire, whatever your weight. That lowest value is your upper limit, whatever the calculator says.
Also check the minimum pressure printed on your tire, and use a gauge you trust, because cheap pump gauges can be off by 0.3 bar or more.
Using the result
The calculator gives a starting point, not a verdict. Terrain, tire casing, rider weight and personal preference all change what feels right, so ride it and adjust in steps of 0.1 bar. A wider tire carries the same load on more air volume, which is why the advice drops as the tire gets wider.
Your upper limit is the lowest of two numbers: the maximum of your rim and the maximum printed on your tire. If the rim maximum is lower than the tire maximum, the rim wins. The table below lists the maximum per rim.
Hookless (straight side) rims are made for tubeless-ready tires only (TLR or TLE), whether you ride road, gravel or MTB. Check the compatibility and the minimum tire width stated by the tire and rim manufacturer.
For most of our road and gravel wheels the maximum weight of rider, bike and luggage together is 120 kg. Above that, choose a wider rim with a larger tire, which runs stable at a lower pressure.
We regularly see wide tires on older rims that were designed for 25-28 mm tires at most. The larger volume asks for a lower pressure, and the maximum on the tire and the rim still applies. A tire that comes off the rim can damage both.
Maximum pressure per rim
The pressure you ride may never exceed the maximum of your rim, whatever the tire allows. The Avalon 454 SL is made for tires of 28 mm and wider.
Rim
Type
Inside width
Maximum pressure
Avalon ONE
Hooked
23.5 mm
7.0 bar
Avalon SL3
Hooked
23.5 mm
6.5 bar
Avalon SL5
Hooked
23.5 mm
6.5 bar
Avalon 454 SL
Hookless
24 mm
5.0 bar
Anath ONE All-Road
Hooked
25 mm
5.5 bar
Anath 456 SL
Hookless
26.5 mm
5.0 bar
Anath 650
Hookless
27 mm
3.5 bar
Yarrow ONE
Hookless
30 mm
3.0 bar
Yarrow SL29
Hookless
32 mm
3.0 bar
Yarrow SL32
Hookless
32 mm
3.0 bar
4-Shore
Hookless
33 mm
3.0 bar
Anath 423
Hookless
33 mm
3.0 bar
SandStone
Hookless
37 mm
3.0 bar
SandStone SL32
Hookless
37 mm
3.0 bar
Other rims: maximum pressure by tire width
If you ride a rim that is not in the list above and enter it as another rim, the calculator uses these general limits by tire width. For 9th Wave rims the maximum in the table above applies.
Hookless rims
Tire width
Maximum pressure
25-29 mm
5.0 bar
30-34 mm
4.5 bar
35-39 mm
4.0 bar
40-44 mm
3.0 bar
45-54 mm
2.5 bar
55-64 mm
2.0 bar
65-84 mm
1.5 bar
Hooked rims
Tire width
Maximum pressure
25-27 mm
8.0 bar
28-30 mm
6.0 bar
31-40 mm
3.2 bar
Questions about rims, tires or the right pressure? Get in touch and we will help you out.