Compomotive CXR correct offsets

[Simon Owen]

Dear All,

 

I am looking to switch from the Caterham 15" CR500 set up ( all 195's ) to a set of Compomotive CXR's 6 x 13 FRONT & 7 x 13 REAR shod with Toyo R888's 185 60 13 FRONT & 205 60 13 REAR.

 

( CXR's seemed a good compromise between weight, price and size, particularly as I was keen to go for 6" front & 7" rear to keep within the limits Toyo suggest )

 

George Polley are struggling a bit in confirming availability for me so I emailed Compomotive direct ..........see response below:

 

"We will need to know the offset you require as we have supplied several different widths and offsets on these cars, ranging from 6x13 to 8x16, ET-12 to ET35"

 

Can anybody confirm what i require, hopefully to allow a straight swop without any clashing with metal or wheel arches, looking at the new tyres I have in the garage it looks like all will fit if I get the correct offset sorted I think 🤔

 

Will the offset differ from front to rear 🤔

 

Many thanks.

 

Simon

[Casbar]

I fitted CXR's 6" front 7" rear. I think I went for 18 offset front and 24 rear. But I went with what Polley's recommended, so they should be able to advise of offsets.

 

On the rear, I had to angle grind the de-dion tube off a little. And you also have to be careful where the balance weights are fitted, if you have big brakes.

[Simon Owen]

Thanks...........this ties in with what George Polley have just suggested at ET19 (FRONT) AND ET24 (REAR).

 

I have been advised that this should be a straight swop without grinding necessary so a bit confused on that one crossed fingers I suppose ❗

 

Cheers,

 

Simon

[Casbar]

I was advised it was a straight swap as well

 

You only have to grind off a little of the excess on the tube, probably 2 mm. But you maybe lucky. Just check that the rears arn't rubbing.