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tires, how do i calculate overall diameter?

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Anthiron The Baja Rejuvenation Begins

4,936 posts · joined Oct 2003 ·

#538006
does anyone know a forumula for calculating the overall diameter of tires?


i need to know the hieght of 195/80 r15

worried they might foul on my guards under full compression with stock height suspension untill i get my raised front end in.

dont want to buy them to find out though.
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom

malcolm Insano Dub Head

812 posts · joined Nov 2004 ·

#538010
693mm
15x25.4=381
195x0.8x2+381=693mm

Anthiron The Baja Rejuvenation Begins

4,936 posts · joined Oct 2003 ·

#538022
thanks guys:thumb
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom