Clinton Posted August 23, 2008 Share Posted August 23, 2008 Hiya, basically im looking for a new set of 18" alloys! I am currently on 18" alloys and the front tyre says "225/40 ZR 18" and the rears say "265/35 ZR 18"! Now i know the 18 is the size of the alloy but what does the rest represent? i want to find a set that are deeper and fill out the arches more so what offset should i be looking for that will give me deeper/or wider alloys? Cheers Quote Link to comment Share on other sites More sharing options...
4000gt Posted August 23, 2008 Share Posted August 23, 2008 The first digits are the width in mm. The next digits are the wall hieght as a percentage of the width. None of this information relates to offset. Stock wheels are +50 offset, you need a lower off set to fill out the guards. Quote Link to comment Share on other sites More sharing options...
4000gt Posted August 23, 2008 Share Posted August 23, 2008 http://www.1010tires.com/WheelOffsetCalculator.asp Quote Link to comment Share on other sites More sharing options...
Clinton Posted August 23, 2008 Author Share Posted August 23, 2008 Mmmm...?? Thanx for the link but how can i find out its current offset then because i need to know it to be able to work out what the new alloys will be? If a rear wheel is 9.5" wide (including tyres)...does that help finding anything out? My current rear wheel measures approx 9.5" wide (including tyre) but still doesnt fill the arches without spacers? Cheers Quote Link to comment Share on other sites More sharing options...
4000gt Posted August 23, 2008 Share Posted August 23, 2008 Measure the offset with a ruler perhaps. As I mentioned already, the width of the rim (9.5 inches in your example), does not help you find out anything, you need the offset. Quote Link to comment Share on other sites More sharing options...
simbasupra Posted August 23, 2008 Share Posted August 23, 2008 Mmmm...?? Thanx for the link but how can i find out its current offset then because i need to know it to be able to work out what the new alloys will be? If a rear wheel is 9.5" wide (including tyres)...does that help finding anything out? My current rear wheel measures approx 9.5" wide (including tyre) but still doesnt fill the arches without spacers? Cheers have a look on the inside of the wheels mate, 99% of the time the wheel manufacturers emboss it on the back of the spokes. Look for something that says "ET??" The question marks will be your offset. hope this helps. if you then want them too stick out more than your current ones your offset will have to be lower unless you want to use spacers. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted August 23, 2008 Share Posted August 23, 2008 The offset is stamped on the wheels somewhere, or should be, on the inside. Take the wheel off, look at the back and look for stamps, numbers etc Quote Link to comment Share on other sites More sharing options...
Clinton Posted August 23, 2008 Author Share Posted August 23, 2008 (edited) O.k then cheers, il try and see if i can work out my current alloys offset! Cheers for the help! Or see if it is printed on the inside! cheers everyone! Edited August 23, 2008 by Clinton (see edit history) Quote Link to comment Share on other sites More sharing options...
Nic Posted August 24, 2008 Share Posted August 24, 2008 What wheel model are you considering fitting, most decent manufacturers will recommend the correct size and offset to fit the Supra. Quote Link to comment Share on other sites More sharing options...
Clinton Posted August 24, 2008 Author Share Posted August 24, 2008 I havnt got an exact model of alloys i want, i just want a nice set with a deep dish that will fill the arches! im prob not gonna go brand new to be honest as im not rolling in money! i would say im looking to spend no more than 600 including tyres! Is an offset of 32 good for the supra? will it fill the arches ok and look good? Cheers Quote Link to comment Share on other sites More sharing options...
simbasupra Posted August 24, 2008 Share Posted August 24, 2008 Tbh mate some decent tyres for 18s are gonna be at least £400 so dont think you will be able to get even 2nd hand wheels for £200. That said if you have seen some you like post them up im sure we will be able to tell you if they will fit. Also do you have the smaller j-spec or larger uk-spec brakes? As this can effect whether they will fit. Quote Link to comment Share on other sites More sharing options...
Clinton Posted August 24, 2008 Author Share Posted August 24, 2008 I swear i have seen a few being sold on here for around the 600 mark?? werent these sold for 600..?? http://www.mkivsupra.net/vbb/showthread.php?t=145103 These are the sort of alloys im after! So what offset should i be looking at to fill the arches then? would an offset of 35 be good enough or would 40 even be good enough? Cheers Quote Link to comment Share on other sites More sharing options...
AndyT Posted August 24, 2008 Share Posted August 24, 2008 8.5 front, 9.5 rear just under recommended offset. These are the minimum I would put on a rwd car of this power. The only way to know if the wheels clear bigger, UK, brakes is to try them or search for members who have said their wheels clear uk. Quote Link to comment Share on other sites More sharing options...
Clinton Posted August 24, 2008 Author Share Posted August 24, 2008 Cheers for the tip but i dont have UK brakes anyway so this is not an issue for me; i just wanna set with a nice dish and that will fill the arches! I was told that the width of the wheel has nothing to do with the offset??...and as my current rear wheels are approx 9.5 wide but have an offset of 50 so dont fill the arches...that is why i keep babbling on about which offset i should be aiming for?? Cheers Quote Link to comment Share on other sites More sharing options...
AndyT Posted August 24, 2008 Share Posted August 24, 2008 Cheers for the tip but i dont have UK brakes anyway so this is not an issue for me; i just wanna set with a nice dish and that will fill the arches! I was told that the width of the wheel has nothing to do with the offset??...and as my current rear wheels are approx 9.5 wide but have an offset of 50 so dont fill the arches...that is why i keep babbling on about which offset i should be aiming for?? Cheers Lack of uk brakes will be an issue. Trust me. The smaller the offset = more space for the brake calipers. Do yourself a favour and get offsets that suit uk brakes from the start. That way when you need better brakes you don't need to change wheels. Quote Link to comment Share on other sites More sharing options...
simbasupra Posted August 24, 2008 Share Posted August 24, 2008 I swear i have seen a few being sold on here for around the 600 mark?? werent these sold for 600..?? http://www.mkivsupra.net/vbb/showthread.php?t=145103 These are the sort of alloys im after! So what offset should i be looking at to fill the arches then? would an offset of 35 be good enough or would 40 even be good enough? Cheers Sorry bud thought you were after new tyres and old wheels, but yeah should be able to pick a set of used wheels and tyres up for that. Standard offset is 50 so personally i would go for around 40 to bring them out a bit. I think 35 is a little too low and would stick out too far and cause handling issues too. So around 40 is what i think you should be looking for and like said definately go for wider rears. Quote Link to comment Share on other sites More sharing options...
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