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I was taking mine off this week to check the brake pads, etc for summer and thought I'd document the wheel stats for future reference, should anybody be looking for replacements or spares.

This is the Alpina 19" Dynamic Wheel


(as opposed to the Alpina Classic wheel, which was also an option on the Roadster and is shown below)


These were made by Ronals and if original should be stamped with both the Alpina and Ronals logos, They are all 19" but staggered in width.

It is recommended to get the modern replacement valve that has the additional plastic washer that separates and prevents the reactive corrosion between the two metals.



Front Wheels
The fronts are 8.5Jx19 ET50 and have the following offset (as shown)

They take a 235/35/19 Tyre, (I run Goodyear Eagle F1's all-round and with my Eibach springs and Bilstien B12 suspension, the car sticks like **** to a blanket )


Rear Wheels
The rears are 9.5Jx19 ET50 again, and run 265/30/19 93Y tyres



I hope this is useful and may save you having to take your wheels off for the same information.
-Please feel free to add more info if you can ?

Nice write up, always loved these wheels, one of the best looking wheels ever put on a zed imo.
What are the offsets out of interest?

bmwaddict wrote: What are the offsets out of interest?

Offset is ET50 front & rear with a PCD (bolt pattern) of 5x120
Edit: Offset is ET50 denoted by the e50

EH2? Never heard of that, no ET number eg. ET47? Sorry if I'm being stupid. I thought Alpina wheels only came in 5x120?

What I can tell is the rears don't fit on the fronts very well.

Isn't that right Perry

srhutch wrote:What I can tell is the rears don't fit on the fronts very well.

Isn't that right Perry

They fit on the fronts perfectly - it's only if you want to drive anywhere that it becomes a problem...

Just read online they are et50 all round, so would fit on my car, I don't have £2k spare for a new set unfortunately

bmwaddict wrote:Just read online they are et50 all round ...

bmwaddict wrote:EH2? Never heard of that, no ET number eg. ET47? Sorry if I'm being stupid. I thought Alpina wheels only came in 5x120?

EH2 refers to the 'hump' or bump which is put on the bead seat to prevent the tyre coming off the rim. In this case EH2 is 'extended hump' which denotes the bead seat contour is on the inside and outside of this particular wheel.
As you rightly say offset figure is displayed as an et number.

Some additional detail just in case someone needs the Alpina part numbers:

Alpina Dynamic centre caps (3613128)
Replacement valves (3610086)
Wheel bolt (3613016)
Locking wheel bolt (3613017)

Cheers
Tom