Split rim alloys, what are the benefits?

[anonymous-user]

My Z4 is fitted with split rim alloys and it's got me thinking, what are the benefits of split rims over a 'normal' alloy? It certainly can't be weight saving. Is it just purely cosmetic?

[Monty Python]

The only advantage I can see is that you can change the offset/PCD bit separately.

[300bhp/ton]

St John Smythe said:

My Z4 is fitted with split rim alloys and it's got me thinking, what are the benefits of split rims over a 'normal' alloy? It certainly can't be weight saving. Is it just purely cosmetic?

Speed. It lowers the rotating inertia and is worth at least 11.57hp per wheel (but only 4.26 for a spare).

[aka_kerrly]

You can customise the centres to suit different hub applications/offsets/stud patterns + if you kerb them it is easier to buy a new outer lip and replace it then try welding/sanding the lip on a 1 piece rim.

dave

[Pistachio]

Also the rims are usually forged which makes them stronger than cast alloy and can be repaired more easily than cast alloy
what he said above Doh!!

[Fartgalen]

Braggin rights darn de old battle cruiser.

[AndrewW-G]

Given the propensity of BMWs split rims to corrode under the lacquer (if the lacquer actually stays on long enough) I suggest it’s all part of a Faustian pact made with the devil by alloy wheel refurb companies (can you guess what I dropped off at National alloys for a makeover today ) )

[Tyson1980]

St John Smythe said:

My Z4 is fitted with split rim alloys and it's got me thinking, what are the benefits of split rims over a 'normal' alloy? It certainly can't be weight saving. Is it just purely cosmetic?

Look better...but corrode like a bd...

Mine corrode year on year on the Z4M