Jamesy Posted March 10, 2017 Share Posted March 10, 2017 Trying to help a thick friend out for his new wheels. They are going to cost about £3,000 so want to make sure we get the sizes bang on please. I have done some calculations based on previous wheels I've had but can some gurus confirm my sizes please. Just to note he doesn't want to flare the arches just wants an aggressive stock arch fitment. FRONTS: 18 x 10j with a 35 offset REARS: 18 x 11.5j with a 55 offset Muchos Quote Link to comment Share on other sites More sharing options...
jot_ie Posted March 10, 2017 Share Posted March 10, 2017 Hi First off I'm no guru, but I don't think those offsets will work very well. For comparison mine are:- 18x9.5 et37 Front 18x11.5 et49 Rear Stock REAS suspension, rear arches rolled. The offsets you have in mind will cause the front to stick out approx 8.5mm more than mine and the rear will be 6mm further in. Your front offset should be about 45 and rear about 50 for those sizes. You need to be careful with the rear as an offset of 55 may cause the wheel and tyre to rub on either the springs or body. Mine, with an offset of 49, rubs when the car is jacked up and the wheels hang freely. I have to put 5mm spacers on the rear to pass our NCT (National Car Test.....similar to MOT). Also, offsets don't guarantee caliper clearance on the front if you have the larger UK spec brakes, that has more to do with the face design of the wheel. I do know people have put 10's on the front but not sure of the exact offsets or what bodywork needs to be done to accommodate them, maybe someone else can assist with this. Hope this helps a bit :-). Quote Link to comment Share on other sites More sharing options...
Scooter Posted March 10, 2017 Share Posted March 10, 2017 What springs/coilovers does he have? The 55 offset means the wheel rim will be 30.4mm closer to the spring/inner wheel arch than a stock 17" 9.5". Depending on the tyre overhang compared to the 255/40/17 stock size it might need slightly less room or perhaps more. Might be worth checking as inside clearance is rarely considered? Quote Link to comment Share on other sites More sharing options...
Jamesy Posted March 10, 2017 Author Share Posted March 10, 2017 Thanks guys he has the following setup: * KSport 356 front brakes * UK rears * Hypermax 4 HKS coilovers..... Quote Link to comment Share on other sites More sharing options...
Jamesy Posted March 11, 2017 Author Share Posted March 11, 2017 Help!? Quote Link to comment Share on other sites More sharing options...
alibabba Posted March 11, 2017 Share Posted March 11, 2017 I agree with Jot_ie, your front wheel will stick out. In those sizes your best bet would be 18x10 et42 and 18x11.5 et50. Quote Link to comment Share on other sites More sharing options...
Jamesy Posted March 11, 2017 Author Share Posted March 11, 2017 Cheers Quote Link to comment Share on other sites More sharing options...
Chris Bailey Posted March 12, 2017 Share Posted March 12, 2017 Our Work Meister S1's are 18×9.5J ET37 18×11.5J ET49 They sit flush with the arches all round and we run no spacers. Quote Link to comment Share on other sites More sharing options...
jcbt Posted March 12, 2017 Share Posted March 12, 2017 Our Work Meister S1's are 18×9.5J ET37 18×11.5J ET49 They sit flush with the arches all round and we run no spacers. But have Rolled arches on the rear and they clear uk spec brakes Quote Link to comment Share on other sites More sharing options...
Jamesy Posted March 13, 2017 Author Share Posted March 13, 2017 Nice one guys thanks a lot Quote Link to comment Share on other sites More sharing options...
Frank Bullitt Posted March 13, 2017 Share Posted March 13, 2017 Don't forget it's also down to spoke design not just offset. Quote Link to comment Share on other sites More sharing options...
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