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Author wheel measurements
big_D
Member
Registered: 11th May 06
User status: Offline
20th May 06 at 08:49   View User's Profile U2U Member Reply With Quote
quick question, how would you go about measuring the size of the alloy if you had no tyre on it and didnt know the diameters already?

its just that ive bought some 19"s and when compared them to my old 17"s they look alot more than 2" bigger. I thought maybe it was a case of just measuring from edge of rim to the other side of the rim across the centre but when i did this my 17" measured as 18.5" and my 19" measured just over 20", how does that work out?
Steve
Premium Member

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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
20th May 06 at 08:51   View Garage View User's Profile U2U Member Reply With Quote
buy a decent tape measure
big_D
Member
Registered: 11th May 06
User status: Offline
20th May 06 at 09:13   View User's Profile U2U Member Reply With Quote
lol it is new, and it reads the same on several tape measures. im in making sure it measures in a straight like rather than bending it around the alloy
tom_simes
Show Staff
Organiser: South Wales
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Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
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20th May 06 at 11:41   View Garage View User's Profile U2U Member Reply With Quote
go out to your street, find somebody with big wheels (4x4 etc) and place it alongside to help you judge it!
Ian
Site Administrator

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Registered: 28th Aug 99
Location: Liverpool
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20th May 06 at 12:20   View Garage View User's Profile U2U Member Reply With Quote
Measure around the wheel on the tyre bead seat, then divide that number by 3.14.
Ian
Site Administrator

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Registered: 28th Aug 99
Location: Liverpool
User status: Offline
20th May 06 at 12:21   View Garage View User's Profile U2U Member Reply With Quote


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