DAZ Posted January 30, 2003 Posted January 30, 2003 Hi I have 2 sets of wheels to choose from one offset ET19 tried some on the car with same offset need a 10mm spacer,the other set are marked E13 am i right in thinking a 4mm spacer would be needed to get the same outcome as the ET19 offset or am i completly wrong TIA DAZ Quote
POC Posted January 30, 2003 Posted January 30, 2003 thats right, i have a set of ET13 wheels for sale if you are interested Cheers paul Quote
PETER Posted January 30, 2003 Posted January 30, 2003 not long bought my wheels asked the factory for offset and they told me to use et35 Quote
Nick M Posted January 30, 2003 Posted January 30, 2003 AAARRRGGGGHHHH !!!!!! *head explodes* What car (SE, SEi, SEiW, SEW ?? ), year, size of wheels, etc., etc. was that offset quoted for Peter ? Daz, your sums are a little out for the spacers - a 4mm spacer added to a wheel with an offset of ET13 would make give you ET9 wheels. What size wheels are we talking about ? Discussions about offset are pointless if we don't know what width the wheel is. Quote
DAZ Posted January 31, 2003 Author Posted January 31, 2003 Sorry Nick mines a Megablade SEiW 6x13. You say adding a 4mm spacer to ET13 would give ET9 offset then would adding the 10mm spacer which i did to ET19 offset not give me the same ET9 offset thus making the wheels sit the same. Now i'm really confused. DAZ Quote
POC Posted January 31, 2003 Posted January 31, 2003 Ah, when I said 'thats right' what I ment to say was you have it the wrong way round. Adding spacers brings the offset down, ie: add a 10mm spacer to an ET35 wheel will give an ET25 offset. As per usual, it is better to get wheels with the correct offset rather than mucking about with spacers, you could also run into problems with wheel stud length of using large spacers..... thats my experience anyway. Cheers Paul Quote
sweaty Posted January 31, 2003 Posted January 31, 2003 Paul, Can you tell me more about the wheels you have for sale ? Thanks Quote
POC Posted January 31, 2003 Posted January 31, 2003 5 wheels wrapped in avon tyres, good tread all round. The center caps are sprayed matt black, these will rub down and spray up silver to match no problem, the spare wheel is also sprayed matt black, again this can be resolved with minimal effort. ET13 offset, 15 x 7 , all in very good condition. Cheers Paul Quote
Nick M Posted January 31, 2003 Posted January 31, 2003 You say adding a 4mm spacer to ET13 would give ET9 offset then would adding the 10mm spacer which i did to ET19 offset not give me the same ET9 offset thus making the wheels sit the same Sorry Daz, I came over all irrational because it was another offset thread Yes, an ET13 with a 4mm spacer = ET9, as does and ET19 with a 10mm spacer. I was thinking you were trying to get to ET19 by adding a spacer to the ET13 wheel. Next question - why do you need such a small offset ? Is this what the factory are recommending ?? Seems awfully low. In fact I'd have thought the ET19 would be pretty much on the money with no need for spacers. Quote
DAZ Posted January 31, 2003 Author Posted January 31, 2003 Nick Just checked my wheels that are on the car again couldn't find an offset number on them last time, cleaned them up seems to be a faint 16 stamped on them so i presume this is ET16 offset.The rear has a 3mm spacer and the front has no spacer.So with ET19 offset the rears would require a 6mm spacer and the fronts a 3mm spacer to achive the same wheel positions.The wheels that came on the car are close to the cycle wing brackets and the ET19's that i borrowed to try on for size (mate has some on his striker) rubbed against the brackets thus requiring a spacer.Will try them again at w/e with my 3mm spacer to see how much clearance i have if the offset is ET16 on original wheels a 3mm should be ok with the ET19's.Does this make sense. Cheers Nick DAZ Quote
Nick M Posted January 31, 2003 Posted January 31, 2003 Well the numbers make sense, in terms of calculated offsets and spacers, I'm just scratching my head as to why you need such a small offset and why they rubbed the cycle wing bracket. I run 6x15 (ET15) and 5.5x13 (ET15) wheels and they both sit right to the outside of the wheel arches. There's still enough clearance (just) but there's no way the inside edge of the wheels is going to rub anything !! I was told by Westfield, when speccing wheels for my 96 SEiW (fixed rear arches) that, with 6" wheels, I should be looking at an offet of between ET13 and ET19. Now, I know later cars vary and with detachable arches you can run a lower offset on the back, but I'm still puzzled as to how the front wheels are causing you problems. Where do the wheels rub ? And are the cycle wing brackets straight, i.e. not bent in any way ? Quote
Nick M Posted January 31, 2003 Posted January 31, 2003 Daz, here's another thing you can do to work out the offset of your current wheels. Measure the "backspace" by putting a metal bar across the rim on the back (inside) face of the wheel and then, using a sqaure to guide you, measure the distance from the rim to the mounting face of the wheel. That's the backspace - let's just say it's 3.5". Now, divide the width of the wheel in two (3") and subtract that from the backspace figure and hey presto, you have an offet value (0.5"). Quote
timd Posted February 1, 2003 Posted February 1, 2003 Measure the "backspace" by putting a metal bar across the rim on the back (inside) face of the wheel and then, using a sqaure to guide you, measure the distance from the rim to the mounting face of the wheel. That's the backspace - let's just say it's 3.5". Now, divide the width of the wheel in two (3") and subtract that from the backspace figure and hey presto, you have an offet value (0.5"). Bloomin' Merkins - last time I looked the offsets were in Metric Mr M. Pull yourself together! Quote
DAZ Posted February 1, 2003 Author Posted February 1, 2003 Nick,thanks for all your help sorted now ET19 on front with 3mm spacer.Have noticed one bracket is bent a little this is the side that was catching but tried the other side everything spot on. Cheers DAZ Quote
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