Reverse rim measurement

[251 ENG]

Does anyone have an original factory 4 1/2" reverse rim wheel that they could take an accurate measurement off ?

Looking for the length from the hub contact face to the edge of inside rim

[360gts]

Simon, Are you referring to the original 4.5J S rim
Just in case measured both....I
original 4.5 S rim from my 970... exactly 4"
Original 4.5 s reverse rim is 3 5/16"

[850RS]

I have a set of NOS 4 1/2” Dunlop 918s and I measured from hub mounting face to edge of the inside lip and it’s 3 1/4”.

[Peter Laidler]

If I remember correctly, all of the measurements of the different steel wheels are included in THE WHEEL DIRECTORY.

I have a browse through occasionally and it never fails to amaze me the sheer amount of 10" mini wheel manufacturers there were........ Both steel and alloy

[Allen Brzeczek]

I have the original factory fitted 4.5" wheels on my '66 S. If I understand the required measurement correctly mine measure 3". This was measured by cutting a rigid piece of wood which fitted across the wheel resting just inside the lip, I then dropped a steel rule vertically down onto the contact face which read exactly 3".

I repeated the exercise, this time I mitred the ends of a piece of wood such that it sat squarely on top of the outside radius of the rim without any contact with the tyre where I measured the distance to the contact face a 3-5/16"

[251 ENG]

Thanks for all the answers.
I was looking for the size for reverse rim off a cooper or 850 not the cooper s rims .

I have some 4 1/2” x 10 minilites and I am trying to work out what they fit

[251 ENG]

The minilites averageout at 3.562" , 3 9/16 or 90.5mm

[Allen Brzeczek]

Yes, thank you for the clarification, the Cooper S have spacer moulded as part of the rear brake drum which I assume are not on other models, it might help with your quest if you consider using the standard spaced "S" drums which I believe are readily available from the popular outlets.

[CooperTune]

A little off topic but, I have two sets of 5 each reverse wheels. The first set I sent right out and had powder coated OEW. The second set I recently picked up on my trip to Ga. Of that set 4 are painted OEW and one is wheel silver, sort of more gray than silver. Like everything else, powder coating has gone up. I'm not sure coating the 5 either color will bring value up to cover cost. Steve (CTR)

[251 ENG]

Coopertune , so can you measure the wheels ?

[hanlminiman]

Hi Simon
Are you going to Gaydon on Sunday or Tuesday evening? I have some original steel wheels which I could put in car for you to measure.
Cliff

[DougR]

Hi, these S rims are stamped 4.5J x 10. Offset is 4 inch. Not sure if this is what you're looking for. Hope this nevertheless helps. Cheers, Doug.

20240405_183712.jpg

[DougR]

Sorry that's not the offset as it were but the dimension that you were referring to. The actual offset is 1 and five sixtheenths. Cheers, Doug.