Wheels size and offset for 26r arches

[Giff]

Hi,

STD 5 pin knock off hubs - 26r wheel arches.

13" wheels - preferably 6" wide - what is the best offset and would a 175/60 work?

Thanks.

[vstibbard]

Yes I’ve run 185x60x13 easily using plus two knock on hubs as well on Elan.
Vaughan

[661]

The 26R arches are very accommodating.
On the GTS I have some road legal tyres, Avon CR6ZZ, 185/70 13
26R hubs obviously
https://www.longstonetyres.co.uk/vintag ... cr6zz.html
There's still plenty room.

On race days it fits ;
https://www.longstonetyres.co.uk/525m13 ... acing.html

But it won't fit a :
https://www.longstonetyres.co.uk/550m13 ... acing.html

[vstibbard]

Hi Graeme
Apologies thread drift!!
I can fit 550’s on the rear of mine!! Which is what it ran on rear in period for the 12 hour races 550L13 rather M series. It does look good!!
We did have to fit long springs to avoid the tyres fouling the doing perch. But with new regulations that issue has probably been solved.
Tony T was adamant about staying with 525’s though.
What camber do you run with 525’s?
Cheers
Vaughan

[Giff]

So what offset 6x13 are you running?

Is it affected by the 26r hubs as opposed to the std 5pin knock ons?

[661]

Hi Graeme
Apologies thread drift!!
I can fit 550’s on the rear of mine!! Which is what it ran on rear in period for the 12 hour races 550L13 rather M series. It does look good!!
We did have to fit long springs to avoid the tyres fouling the doing perch. But with new regulations that issue has probably been solved.
Tony T was adamant about staying with 525’s though.
What camber do you run with 525’s?
Cheers
Vaughan

Correct , the 550 L will fit, the 525 is the biggest M section. My race series is allowed to run either.
I would need to check my numbers but from memory I’m 1 deg neg at the back and 1.5 fronts

I’m afraid I don’t know the offsets of the 26 R mag wheels. Additionally the wishbones are different, as are the hubs , but my best guess would be there’s probably little displacement if any in the position of the hub face.