HotRod_07 Posted October 12, 2009 Share Posted October 12, 2009 Hello there. I have abit of a problem. Ive been looking at some alloys but it says it has a plus +50 offset. What does this mean? and will it fit my Civic VTI-S 1997?linkhttp://cgi.ebay.co.uk/Sprint-Wheels-SW9 ... 286.c0.m14 Link to comment Share on other sites More sharing options...
hickster Posted October 12, 2009 Share Posted October 12, 2009 Yes those will fit +50 is the ideal offset iirc.Can't remember if offset is covered elsewhere, but basically if you imagine a centre line cut through a wheel directly between the two rims offset is the difference between this imaginary line and the back of the mounting surface. As a general rule front wheel drive cars have a positive offset ( mounting surface more towards the outside of the wheel) rear wheel drive and some older cars have zero or a negative offset (like a BMW m3 for example) Link to comment Share on other sites More sharing options...
HotRod_07 Posted October 12, 2009 Author Share Posted October 12, 2009 will this +50 offset cause any problems to the safety of the car etc? Link to comment Share on other sites More sharing options...
1.8vti Posted October 13, 2009 Share Posted October 13, 2009 i remeber oem is ET38 . i use ET40 on my MB it very good. please correct if i wrong. Link to comment Share on other sites More sharing options...
BLAMES-VTi Posted October 13, 2009 Share Posted October 13, 2009 swear oem is ET45. cos on a 96 spec itr rim its ET50 and you need 3mm spacers on the mb. Link to comment Share on other sites More sharing options...
Dave Posted October 13, 2009 Share Posted October 13, 2009 yeah, i think ET45 aswell. Link to comment Share on other sites More sharing options...
FlunkyVTEC Posted October 13, 2009 Share Posted October 13, 2009 I thought the stock MB6 was 55 offset and that the spacers were required due to the spoke design in combination with the front caliper. I have a picture of the inside of one of my OEM wheels and it says the size is 15x6jj55 of which I suppose the latter will be offset.In general a deviation of 5 from the stock offset is accepted and some say more will influence the handling characteristics and cause more strain and wear on the wheel bearings. I've chosen to ignore this as otherwise I wouldn't have been able to buy my favourite wheel. Link to comment Share on other sites More sharing options...
hickster Posted October 13, 2009 Share Posted October 13, 2009 These are Rota replicas of 'teg wheels I don't think you need the spacers to fit the MB6 as they are updated check with Rota or Tegiwa. rarerims reckon these have more caliper clearance.Offsets between 50 and 40 should be fine. ET38 is popular and even Mugen use it often; lower number offsets will trade a bit of tramlining for increased track. Depends how far you want to go before it gets annoying for everyday use. Link to comment Share on other sites More sharing options...
Dave Posted October 13, 2009 Share Posted October 13, 2009 does this mean the lower the number of offset, the deeper dished the wheel is? Always baffled me the pcd's etc! Link to comment Share on other sites More sharing options...
hickster Posted October 13, 2009 Share Posted October 13, 2009 Yep thats basically it. Extreme negative offsets are rare these days except for the euro scene but they are often called deep dish.As another example (just to confuse even more!) if you took a standard steel wheel an cut in a 40mm band behind the outer rim you would lower the offset number by 20mm.The reason offset affects handling is because it changes the distance between the steering axis of the hub and the contact patch of the tyre. The deeper the dish of the wheel the longer this effective lever is; when both front tyres are gripping equally the car will want to go in a straight line as soon as one is unloaded the other will feedback through the steering. If the effective lever is reduced (centreline of tyre sits around steering axis) these effects are reduced.The main reasons you would try and reduce offset on a Honda are either to fit a wider wheel and tyre (giving increased grip) and still clear the suspension or to increase the track (distance between the wheels) giving increased stability.If anyone is wondering why we keep refering to ET it's the shorthand for the German for insertion depth (offset) not the pint sized brown alien. Phew this is a bit of an offset marathon! Link to comment Share on other sites More sharing options...
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