New wheels - inner rim fouling De Dion tube
Discussion
I've been running 13x6 all round and found some nice looking 13" Compomotive CXR wheels, 6's front and 8's on the rear.
Fronts went on with no problem.
Put the rears on and and there's no clearance between the De Dion tube and the inner wheel rim.
It's not ground stuck and I can wheel the car back and forth in the garage / spin them on axle stands, but I barely squeeze a fag paper between them.
There is some light scoring on the rear wheels - the contact point looks to be a good 10mm in, so not keen on a spacer solution due to potentially having contact issues with the outer tyre and wing / length of the hub screws.
The new wheels are a used set previously on a 2005 Caterham and were made to Caterham specs (so I'm told).
PCD 4x108
C/bore 63.5
Offset fronts 6x13 ET20, rears 8x13 ET24.
Mine in a 1998 car. Would this make a difference?
Have a look at the photos - I've highlighted the contact point:
Thoughts? I've still got my old wheels so not the end of the world to put these back on the bay.
Fronts went on with no problem.
Put the rears on and and there's no clearance between the De Dion tube and the inner wheel rim.
It's not ground stuck and I can wheel the car back and forth in the garage / spin them on axle stands, but I barely squeeze a fag paper between them.
There is some light scoring on the rear wheels - the contact point looks to be a good 10mm in, so not keen on a spacer solution due to potentially having contact issues with the outer tyre and wing / length of the hub screws.
The new wheels are a used set previously on a 2005 Caterham and were made to Caterham specs (so I'm told).
PCD 4x108
C/bore 63.5
Offset fronts 6x13 ET20, rears 8x13 ET24.
Mine in a 1998 car. Would this make a difference?
Have a look at the photos - I've highlighted the contact point:
Thoughts? I've still got my old wheels so not the end of the world to put these back on the bay.
GreigM said:
8inch rears with ET24 has been a standard fit for a long time.
My understanding also - the wheels are a standard Caterham fitment spec.GreigM said:
10mm spacer looks like it would fix it.
Hmmm, not too keen. I've measured again more accurately, would need more like 12mm - that's hell of a space. Might give issues with outer clearance issues with the wing. Plus I'd probably have nothing left to put the lug nuts on!GreigM said:
If I wasn't overloaded with wheels already I'd buy them off you as CXRs are lovely.
Yes, they are nice - light too!framerateuk said:
sfaulds said:
Just trim the ali gasket down, and grind the excess weld off the back of the tube if needs be. Pretty standard stuff.
This seems to be the standard reply on Blatchat. Lots of people have had the issue. You'll only need to grind away a very small amount of material.eta, if these wheels are Caterham fitment, is it the same issue with the 13x8 8-spoke wheels from Caterham themseleves? "Sorry, you'll need a grinder to make the wheels we sold you fit the car we sold you properly?"
Grubbster said:
Same often happens with the CC supplied 8" anthracite alloys, just need to trim off the end of the ali shim and possibly a tiny bit of dedion. Remember to explain this to the tyre fitters when you get wheels balanced as they will put the weights on the edge of the rim - they need to go inboard by about an inch in order to maintain clearance.
Yup, good call. Looks like the shim doing the contact. Will use some emulsion on the inner rim to check the contact point and grind off. Anyone know what a safe gap should be? I'm thinking at least 3mm to avoid little stones and other debris getting caught there.
Gassing Station | Caterham | Top of Page | What's New | My Stuff