Butler
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Registered: 2nd Jun 05
Location: London
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I cant find anything on my wheels that tells me the offset, it says 6.5xR15 and thats about it. Any ideas?
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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quote:
Originally posted by Robin
You need to measure the width of the wheel, divide it by two, then measure how far the mounting face is from the back of the wheel, take the first measurement away from the distance the mounting face was from the back, then you've got the offset.
So if the wheel is 166mm (6.5") wide, divide that by 2, to get 83mm.
Measure the distance from the back of the wheel, say 100mm.
Take 83 from 100 and get 17, the wheel offset is ET17.
If that makes sense?
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Timbaland
Banned
Registered: 20th Jan 07
Location: Glasgow
User status: Offline
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quote:
Originally posted by Robin
quote:
Originally posted by Robin
You need to measure the width of the wheel, divide it by two, then measure how far the mounting face is from the back of the wheel, take the first measurement away from the distance the mounting face was from the back, then you've got the offset.
So if the wheel is 166mm (6.5") wide, divide that by 2, to get 83mm.
Measure the distance from the back of the wheel, say 100mm.
Take 83 from 100 and get 17, the wheel offset is ET17.
If that makes sense?
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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Actually measure the wheel though, don't go on the numbers on it, they won't be right to work it out as they're measured between the lips, not outside.
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Butler
Member
Registered: 2nd Jun 05
Location: London
User status: Offline
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mounting face to what part of the back of the wheel?
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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Yeah, if you hold something flat across the back of the wheel (bit of wood will do) and measure the distance from that to the mounting face in a straight line, obviously, then subtract that from half the wheel width, you've got it.
[Edited on 15-05-2007 by Robin]
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Butler
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Registered: 2nd Jun 05
Location: London
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Aaaah right I see, nice one mate. Just need to find my locking wheel nut now cos my mum managed to move and forgotten where 
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Butler
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Registered: 2nd Jun 05
Location: London
User status: Offline
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So thinking about it, if ive got the correct offset for the car which in my case is ET15, then the brakes shouldnt sit any further behind the wheel than if the wheels were the perfect offset?
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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That depends on the spoke design really.
Something with a big dish behind the spoke would have more clearance than something with a flat one.
There wouldn't be any difference in the way the disc sits in relation to the wheel, but the caliper might have less space.
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Butler
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Registered: 2nd Jun 05
Location: London
User status: Offline
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My calipers are currently sitting very far back compared to what I imagine the perfect set up would look like, and the calipers have plenty of space. I think the problem was with suspension clearance which may be down to the tyres. This is currently pissing me off though!
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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What problem are you having?
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Butler
Member
Registered: 2nd Jun 05
Location: London
User status: Offline
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Im going to get some 206gti brakes and want to have my wheels done in black and was going to hammerite the calipers gold or silver to tidy it up. The brakes look really far back behind the wheels though and look a bit weird really, just wanted them a bit closer to the wheel cos it looks cack, its only aesthetical.
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Steve X16XE
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Registered: 31st Dec 06
Location: Barnsley, South Yorkshire
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What wheel's do you have?
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Butler
Member
Registered: 2nd Jun 05
Location: London
User status: Offline
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Team dynamic monzas
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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The 206 calipers are bigger though yeah? They might sit slightly closer... my V6 ones on my Corsa were (marginally) closer than the original ones as they were larger.
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Butler
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Registered: 2nd Jun 05
Location: London
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Yeah only VERY slightly though and the wont move. I just wanted to find out what offset these were so I could get some spacers which suited. My ones now are about 20mm and probably too big.
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Steve X16XE
Member
Registered: 31st Dec 06
Location: Barnsley, South Yorkshire
User status: Offline
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Don't know if all TD's are all the same but.....
On mine, on the back, look round the lip. It has been etched in. But you can only see it if you get the light in the correct angle. 
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Butler
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Registered: 2nd Jun 05
Location: London
User status: Offline
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Il have a look tomorrow after I clean them, they are pretty much black as it is haha. Nice one guys.
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Steve X16XE
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Registered: 31st Dec 06
Location: Barnsley, South Yorkshire
User status: Offline
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No probs
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