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[nightshining]

such as ck and ckII, what is the difference?
is the two-piece wheel easy to deform?

[dahanist]

I believe two (or multi) peice wheels are for different width.
What I mean is that the company can make narrower wheels and wider wheels with same design - for less $$.
One would have to make two whole wheels to have two different width with one peice wheels. For two peice wheels, one can make two different width barrels but make two of the same faces (or more if you need wide range of width).
I hope you get what I wrote.

[Imadriver]

Compare the weight of each wheel. The two piece wheels should be lighter.

Multi-piece wheels were born to reduce manufacturing costs and allow the manufacturer to cast the centers of a wheel (for complex designs) while using sheet strips for the rim (which provided a better air seal).

Nowadays all the parts are cast/forged on many wheels, but by using multiple pieces the manufacturer has more flexibility with the type and thickness of the metal used throughout the wheel.

[bavarian19]

multi piece wheels are exactly that... they are made as seperate pieces, and then bonded together. This allows the wheel manufacturers to use different materials for different parts of the wheel.

[voltron1011]

Bavarian is correct... A lot of companies use a special forging technique that make the rim extremely strong. However, this technique usually can only be used for the actual round part of the wheel. The spokes and hubs will usually be made with a different technique, thus they need a way to bond the dissimillar pieces together.

[bavarian19]

Originally Posted by voltron1011

Bavarian is correct... A lot of companies use a special forging technique that make the rim extremely strong. However, this technique usually can only be used for the actual round part of the wheel. The spokes and hubs will usually be made with a different technique, thus they need a way to bond the dissimillar pieces together.

voltron... this is a little out of my league, but do the multi piece wheels then use lighter materials for the spokes to keep the weight of the wheel down???

[Ghunger]

I think it goes back to motorsport and being able to replace parts of expensive racing wheels instead of the whole wheel and to select specific materials for different parts of the wheel. I find it hard to justify the weight savings though, as you'd need to add all those fasteners to hold the parts of the wheel together which would negate a lot of the weight savings.

[nightshining]

thank you for the information, and how is deformation of the two wheel, is the two piece one is easier to deform?

[Ghunger]

Honestly, I have no idea. I don't think you can make a gereralization like that. It all depends on the manufacturer and how they design their wheel, what processes they use to make them, the materials, etc...