Graham Perry Posted August 10, 2002 Share Posted August 10, 2002 What are the widest tyres you can fit at the rear on a de-dion car without fitting wider wings ? Assume that the half thickness radius arms are used. Ignore diameter of the wheel. The archive doesn't seem to show this as a previous discussion topic so what have people managed to squeeze under without major mods ? Link to comment Share on other sites More sharing options...
stevefoster Posted August 10, 2002 Share Posted August 10, 2002 you can fit 9" wide tyres (slicks) on 8.5" SLR rims no problem. Not sure if you can go wider than this. Steve My racing pics here Hants (North) and Berkshire area club site here Link to comment Share on other sites More sharing options...
F355GTS Posted August 10, 2002 Share Posted August 10, 2002 Sure Trevor Philips told me yesterday he was running 11.5's on the rear of his...gulp, don't know if his wings are standard though Mark Link to comment Share on other sites More sharing options...
edmandsd Posted August 10, 2002 Share Posted August 10, 2002 I think you'll find Trevor's are the wider Redline ones. Link to comment Share on other sites More sharing options...
stevefoster Posted August 10, 2002 Share Posted August 10, 2002 God help us at Lydden...11.5"! What sort of extra HP is needed to overcome extra rolling resistance? Steve My racing pics here Hants (North) and Berkshire area club site here Link to comment Share on other sites More sharing options...
Graham Perry Posted August 11, 2002 Author Share Posted August 11, 2002 I was thinking in terms of roadgoing radials rather than slicks where there is more bulge in the side wall. I am guessing 245's might just be possible but I was wandering if anyone has tried ? Link to comment Share on other sites More sharing options...
Trevor Phillips Posted August 11, 2002 Share Posted August 11, 2002 Steve, Just picked up on your post! To be exact new Image 3 piece wheels - 9.25" fronts with Mallock carbon fibre cycle wings and 11.25" rears with redline extended arches. This was the set up when I bought the car recently in hillclimb/sprint trim. Not suitable for circuit without a lot of power. They are for sale shortly with nearly new Hoosiers on rear and Avons on front. For Brands next weekend I'll pinch wheels/tyres off Clubman - 7" and 10" - that's if I ever finish the car as the engine is still on the bench. Link to comment Share on other sites More sharing options...
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