F type alloys on XKR
Discussion
That doesn't look right, according to www.wheel-size.com most F-type wheels of 10.5J width should have an offset of ET25. Can you post a couple of photos, particularly showing any number markings?
just0007 said:
Tried to take a picture but they are black gloss so the numbers become eligible they are the gyrodyne wheels and they are 10.5j and 38mm rear and 9j 55mm.
If I get time this week I’ll swap the tyres from my current alloys to these and see what happens
Well I'd never fit incorrect-sized tyres so even if you're going to go ahead and use them then you'll need new ones - but if you can then try jacking the car up, removing one of the existing wheels and fitting one of the new ones. Remember as Simpo says that you have staggered sizes, so try one of the larger ones on the rear and the narrower ones on the front. So long as they don't found on the brakes then you *should* be OK. If possible, have both sides at the front jacked up at the same time so you can turn the steering side to side to check the fronts don't foul on the suspension.If I get time this week I’ll swap the tyres from my current alloys to these and see what happens
Thanks for the advice, the tyres are the same 295 on the rear and 255 on the front it’s only the rear rims are an inch wider. I have the 20inch XKR wheels and instead of a £500 refurb I thought I would get a different design. Once I have them on the car I’ll state the update, hopefully it might help someone else.
By the looks of things the standard XKR wheels have an offset of 45mm front and rear.
This means that your new front wheel (52mm offset) will be 7mm further from the hub, i.e. the outer face of the wheel will be closer to the edge of the wheel arch, so probably more clearance between the wheels and the brake calipers but potentially they could protrude from the wheel arch.
The rears (38mm offset) will be 7mm further in board, i.e. the outer face of the wheel will be further away from the edge of the wheel arch, so potential clearance issues with the rear brake calipers. Also with there being a 14mm difference between the distance the wheel outer faces are from the wheel arches it may look daft!
In summary, get a set of 14/15mm spacers for the rears and I expect it'll be fine
This means that your new front wheel (52mm offset) will be 7mm further from the hub, i.e. the outer face of the wheel will be closer to the edge of the wheel arch, so probably more clearance between the wheels and the brake calipers but potentially they could protrude from the wheel arch.
The rears (38mm offset) will be 7mm further in board, i.e. the outer face of the wheel will be further away from the edge of the wheel arch, so potential clearance issues with the rear brake calipers. Also with there being a 14mm difference between the distance the wheel outer faces are from the wheel arches it may look daft!
In summary, get a set of 14/15mm spacers for the rears and I expect it'll be fine
Squishey said:
By the looks of things the standard XKR wheels have an offset of 45mm front and rear.
This means that your new front wheel (52mm offset) will be 7mm further from the hub, i.e. the outer face of the wheel will be closer to the edge of the wheel arch, so probably more clearance between the wheels and the brake calipers but potentially they could protrude from the wheel arch.
The rears (38mm offset) will be 7mm further in board, i.e. the outer face of the wheel will be further away from the edge of the wheel arch, so potential clearance issues with the rear brake calipers. Also with there being a 14mm difference between the distance the wheel outer faces are from the wheel arches it may look daft!
In summary, get a set of 14/15mm spacers for the rears and I expect it'll be fine
It’s the opposite of what you say. The 52 offset will be further into the arch, the 38 further out. This means that your new front wheel (52mm offset) will be 7mm further from the hub, i.e. the outer face of the wheel will be closer to the edge of the wheel arch, so probably more clearance between the wheels and the brake calipers but potentially they could protrude from the wheel arch.
The rears (38mm offset) will be 7mm further in board, i.e. the outer face of the wheel will be further away from the edge of the wheel arch, so potential clearance issues with the rear brake calipers. Also with there being a 14mm difference between the distance the wheel outer faces are from the wheel arches it may look daft!
In summary, get a set of 14/15mm spacers for the rears and I expect it'll be fine
The number is the distance from the mounting face of the wheel to the centreline of the wheel. Make it bigger wheel moves in; smaller, out.
Gassing Station | Jaguar | Top of Page | What's New | My Stuff