Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.

Alpina (Dynamic) Wheels - Spec and tyres

Alpina Specific discussion
Post Reply
User avatar
Number5
Lifer
Lifer
Posts: 6019
Joined: Tue Sep 24, 2013 7:34 pm
Location: Bristol M4/M5

Alpina (Dynamic) Wheels - Spec and tyres

Post by Number5 » Wed Feb 15, 2017 11:53 pm

Image

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
Image

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

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.
Image
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.
Image


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

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

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 ?
Last edited by Number5 on Tue Jun 27, 2023 8:59 pm, edited 2 times in total.
Alpina Roadster #307
Porsche Boxster GTS
Previous Zs
Stratus E86
G29 30i
1x Imola Z4MR
Alpina #019
10x E85 Se/Si Roadsters
2x E89's
Roof Motor Relocations (Bristol)

User avatar
bmwaddict
Senior Member
Senior Member
Posts: 1148
Joined: Mon Mar 07, 2016 8:55 pm
Location: West Herts/East Bucks

Alpina (Dynamic) Wheels - Spec and tyres

Post by bmwaddict » Thu Feb 16, 2017 12:10 am

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?
Currently zedless :(

'07 Mugello Blue Audi B7 RS4 Saloon with added goodies
'94 Black/Silver/Green Honda CBR400RR
Previous:
'07 Ruby Black Z4MC
'07 Sapphire Black Z4C 3.0si Sport

User avatar
Number5
Lifer
Lifer
Posts: 6019
Joined: Tue Sep 24, 2013 7:34 pm
Location: Bristol M4/M5

Alpina (Dynamic) Wheels - Spec and tyres

Post by Number5 » Thu Feb 16, 2017 12:13 am

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
Last edited by Number5 on Sun Dec 13, 2020 6:29 pm, edited 4 times in total.
Alpina Roadster #307
Porsche Boxster GTS
Previous Zs
Stratus E86
G29 30i
1x Imola Z4MR
Alpina #019
10x E85 Se/Si Roadsters
2x E89's
Roof Motor Relocations (Bristol)

User avatar
bmwaddict
Senior Member
Senior Member
Posts: 1148
Joined: Mon Mar 07, 2016 8:55 pm
Location: West Herts/East Bucks

Alpina (Dynamic) Wheels - Spec and tyres

Post by bmwaddict » Thu Feb 16, 2017 12:19 am

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

'07 Mugello Blue Audi B7 RS4 Saloon with added goodies
'94 Black/Silver/Green Honda CBR400RR
Previous:
'07 Ruby Black Z4MC
'07 Sapphire Black Z4C 3.0si Sport

User avatar
srhutch
Moderator
Moderator
Posts: 26959
Joined: Tue Jun 19, 2007 1:22 pm
Location: East Sussex, UK
Contact:

Alpina (Dynamic) Wheels - Spec and tyres

Post by srhutch » Thu Feb 16, 2017 7:53 am

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

Isn't that right Perry :poke:
Image

User avatar
PerryGunn
Lifer
Lifer
Posts: 9785
Joined: Mon Jun 25, 2012 6:16 pm
Location: By the seaside...

Alpina (Dynamic) Wheels - Spec and tyres

Post by PerryGunn » Thu Feb 16, 2017 2:09 pm

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

Isn't that right Perry :poke:
They fit on the fronts perfectly - it's only if you want to drive anywhere that it becomes a problem... :oops:
Alpina Roadster S #320
* Quaife ATB LSD * StrongStrut Braces * Turner RTAB Limiters * Gap-Tech RCH+ *
* Intravee & KCA-420i * Mini 0806 * Cheetah C550 * Stubby *

User avatar
bmwaddict
Senior Member
Senior Member
Posts: 1148
Joined: Mon Mar 07, 2016 8:55 pm
Location: West Herts/East Bucks

Alpina (Dynamic) Wheels - Spec and tyres

Post by bmwaddict » Thu Feb 16, 2017 2:15 pm

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 :(
Currently zedless :(

'07 Mugello Blue Audi B7 RS4 Saloon with added goodies
'94 Black/Silver/Green Honda CBR400RR
Previous:
'07 Ruby Black Z4MC
'07 Sapphire Black Z4C 3.0si Sport

User avatar
markeg
Lifer
Lifer
Posts: 8106
Joined: Thu Feb 16, 2012 7:05 pm
Location: Lincolnshire Wolds

Alpina (Dynamic) Wheels - Spec and tyres

Post by markeg » Thu Feb 16, 2017 2:16 pm

bmwaddict wrote:Just read online they are et50 all round ...
:thumbsup:
previous: Alpina Roadster S, #108: gone
current: MB C-class
"veni, vidi, velcro - I came, I saw, I stuck around..."

Dav the wheel nut
Lifer
Lifer
Posts: 3066
Joined: Sun Mar 07, 2010 3:40 pm
Location: Somerset

Alpina (Dynamic) Wheels - Spec and tyres

Post by Dav the wheel nut » Thu Feb 16, 2017 5:28 pm

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.

Tommy77
Newbie
Newbie
Posts: 12
Joined: Sat Jul 21, 2018 9:35 pm

Alpina (Dynamic) Wheels - Spec and tyres

Post by Tommy77 » Sat Jan 19, 2019 1:48 am

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

Post Reply