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how do you measure pcd?

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Old Jul 11, 2007 | 08:35 PM
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From: London Baby!
Default how do you measure pcd?

as above i need some trailer wheels and gotta order now!! no stamping on the wheels so im screwed....
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Old Jul 11, 2007 | 08:41 PM
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get a piece of paper and do a rubbing off the back off the wheel so you get the outline of the stud holes. then take that piece of paper and a set of dividers and from the center of each of the holes draw an ark to the aprox center point of were the wheel center should be. after a few arcs you should be able to see the center point of the wheel in which case stick one end of the dividers in that center point then put the other end to the center of one of the whe nut holes. stick the diveders against a ruler to get the radius then just x 2 to get the diameter of the circle or pcd.
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Old Jul 11, 2007 | 08:42 PM
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with a ruler!

EDIT: Here's a better explanation -> http://www.western-towing.co.uk/acat...lculation.html
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Old Jul 11, 2007 | 08:44 PM
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i bet he means offset
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Old Jul 11, 2007 | 08:46 PM
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Originally Posted by Dan@FastFord
i bet he means offset
No Daniel, i mean Pitch Circle Diamter. (pcd) lol you should stick to crashing bikes
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Old Jul 11, 2007 | 08:47 PM
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Originally Posted by darren.cudd
get a piece of paper and do a rubbing off the back off the wheel so you get the outline of the stud holes. then take that piece of paper and a set of dividers and from the center of each of the holes draw an ark to the aprox center point of were the wheel center should be. after a few arcs you should be able to see the center point of the wheel in which case stick one end of the dividers in that center point then put the other end to the center of one of the whe nut holes. stick the diveders against a ruler to get the radius then just x 2 to get the diameter of the circle or pcd.
Thanks mate, i thought thats how you did it but was not 100%! cheers
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Old Jul 11, 2007 | 08:49 PM
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Originally Posted by LoOnIe!!
Originally Posted by darren.cudd
get a piece of paper and do a rubbing off the back off the wheel so you get the outline of the stud holes. then take that piece of paper and a set of dividers and from the center of each of the holes draw an ark to the aprox center point of were the wheel center should be. after a few arcs you should be able to see the center point of the wheel in which case stick one end of the dividers in that center point then put the other end to the center of one of the whe nut holes. stick the diveders against a ruler to get the radius then just x 2 to get the diameter of the circle or pcd.
Thanks mate, i thought thats how you did it but was not 100%! cheers
nether am i but thats how i would do it,
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Old Jul 11, 2007 | 08:49 PM
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Snubbed again

I'll have to change the car in my sig to a Ford, maybe then my posts won't be so invisible
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Old Jul 11, 2007 | 08:51 PM
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Originally Posted by Jamz
Snubbed again

I'll have to change the car in my sig to a Ford, maybe then my posts won't be so invisible
lol sorry bud! cheers too!
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Old Jul 11, 2007 | 10:03 PM
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hang on what the bloody hell am i talking about i was thinking 5 stud. lol if its 4 then just measure across two oposite stud centers.

DUHHHHHHHHHHHHHHHHHHHHHH
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