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THIS IS THE TEST SITE OF EUROBRICKS!
THIS IS THE TEST SITE OF EUROBRICKS!

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That's what I would call very small.

I need a wheel of about 40mm in diameter (actually I don't know yet the scale of MOC).

It seems fastidious to go through all the wheels and then check all sets - so I prefer to ask those who already know.

The closest thing to what you're looking can be found in the 8146 set. All four wheels use the 68.8x36 hub, but the rear tires are larger than the front ones. Both types of tires are racing slicks.

There are a handful of other large scale hubs that fit multiple tires, but at least one of them is an off road tire. Some that I can think of are the classical 20x30 hub (8868 and 8074), the 43.2x26 hub (8475 and 8455) and the 62x46 hub (8458 and 8466). The sets are just some examples I can remember which use the two types.

Edited by CP5670

The first number is the diameter and the second is the depth, in millimeters.

They actually used a different system for some old tires (up to 1990). I think the first number on those is the radius of the hub and the second is the radius of the tire, but I'm not sure about it.

  • Author
Yes, The Nitro Muscle's wheels do fit 2 different tire types, and actually the 8880 tires fit that wheel too.

There's a 2mm difference in depth, does it look ok (if you have tried) ?

The first number is the diameter and the second is the depth, in millimeters.

Ok for the depth, but what diameter are we talking about ?

The 44771 tyre and the 44772 wheel have the same diameter (68.8) so maybe it is the outer diameter for the wheel and the inner diameter for the tyre (so that it fits). But then the x1825 tyre has a diameter of 81.6 which can only be the outer diameter but now that's another measurement system, or I don't know. Actually this tyre has an R while the other tyre and the wheel have a ZR, what does it mean ?

EDIT: It seems that the peeron information is wrong, bricklink says that the wheel is 56x34mm, now it makes sense.

Edited by DeBriquesEtDeBlocs

The hub names are pretty inconsistent, and as you said Bricklink and Peeron often have different names for them. Most of the time, the hub is simply given the same numbers as its corresponding tire, but that causes confusion if there are multiple tires that fit the hub. In those cases, the hub either has a special name or uses the measurements for the hub only.

I have no idea what the letter at the end means. I've seen S used for truck wheels, R for both racing wheels and off road wheels, ZR for racing wheels, and Q for off road wheels.

I know next to nothing about wheel sizes, but this may help with the compatibility.

It may also be possible to put larger tyres on smaller wheel hubs by padding them out with rubber bands.

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