ArosaPD Posted May 14, 2005 Report Share Posted May 14, 2005 (edited) Whats the offset/PCD for the Lupo?The offset for the Lupo is 38mm (GTI 43mm) and are `4-stud` with 100mm PCD, (see here to learn about offsets and PCD!) which it shares with the Polo. It is vitally important that the wheels that you fit to your Lupo are of the correct fitment. Failure to get these correct can be highly dangerous! A good Alloy dealer should sort all this out for you.It seems quite obvious that there is some confusion about how to work out wheel offsets, so here goes. border="0" class="linked-image" /> border="0" class="linked-image" /> border="0" alt="IPB Image" />The offset of a wheel is what locates the tire and wheel assembly in relation to the suspension. More specifically, it is the measured distance between the hub mounting surface and the center line of the rim. Below is an explanation of the various types of offsets which are pictured in the above graphic.Positive OffsetA positive offset occurs when the hub mounting surface is on the street side (the side you see) of the center line of the rim. Most factory rims will have this type of offset.Zero OffsetWhen the hub mounting surface is centered within the rim, it is known as a zero offset.Negative OffsetIf the hub mounting surface is on the brake side of the center line of the rim, it is considered a negative offset or deep dish.Note that extensive negative offset can potentially cause increased steering wheel kick-back and place additional stresses on the vehicle's entire suspension. Hope this helps.Mark Edited February 12, 2006 by Tigz Link to comment Share on other sites More sharing options...
nfbr Posted November 10, 2005 Report Share Posted November 10, 2005 (edited) Heres my guide to wheels and tyres. Basically just gonna let you all know whats what in the world of wheels... If theirs anything missing, let me know.Rite, So lets start with OFFSET, I'm sure you've all heard of it. But what the hell is it?Image1 border="0" class="linked-image" /> border="0" alt="IPB Image" />This picture shows a wheel cut up. Basically, The offset, is the distance from the Centre line of the wheel itself, to where the hub of your car is in contact to the wheel.For example if the distance from the centreline of the wheel to the hub contact surface is 18mm, it would be Offset ET18, On the otherhand if it was 52mm, it would be ET52.So basically the higher the number, the further away from the closer the spokes will be to the caliperNext, I'll explain about PCD PCD(pitch circle diameter) is the spacing of the studs, and also denotes the number of wheel studs/boltsImage2 border="0" class="linked-image" /> border="0" alt="IPB Image" />The first one in the picture shows a four stud, with these the PCD is measured between the centre of one wheel nut hole, and the centre of the one next to it. for example if in the picture above, the four wheel nuts were 100mm appart, This would be ETA 4x100The second one in the picture shows a five stud, with these the PCD is measured between the centre of one nut, and to the direct opposite of the pitch circle, its not to easy to explain but the picture makes things a bit more clear. If this distance was 110mm, then it would be ETA 5x110Last part for wheels, is The Centre BoreThe centre bore is the bit of the wheel that the entire weight of the car is rested on. I'm sure if you've ever taken a wheel off you'll have seen the bit which sticks out of the hub making contact with the hole in a steel wheel, or the recess in an alloy wheel.Image3 border="0" class="linked-image" /> border="0" alt="IPB Image" />The centre bore is pretty easily measured, between the two furthest points of the hole/recess. If this measures 60.1mm, then the Centre bore would quite simply be 60.1mm!Stud Paterns that i know - (Any others you would like to know just ask)4 Stud VW - 4x100Some 4 Stud Audi - 4x100Some 4 Stud Audi - 4x1085 Stud VW - 5x100 (Excl Mk5 Golf)Mk5 Golf - 5x1125 Stud Mercedes - 5x1125 Stud Porsche - 5x130Centre bores that i know - (same applies, let me know if theirs any u want to know)VW - 57.1mmPorsche - 71.6mmFiat - 56.1mmVauxhall - 56.6mm Renault - 60.1mmMercedes - 66.6mm Edited November 10, 2005 by nfbr 2 Link to comment Share on other sites More sharing options...
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