ZSA Motorsport

anyone know hoosier or yokohama sizes for the 2009 cup cars? 18" wheels.

i believe michelins are 24/640 18" Fronts and 27/680 18" Rears

doc#66

YOKO
230/650-18 and the 280/680-18 s01
HOOSIER
250/650R-18 43825 Porsche Cup R80
280/680R-18 43840 Porsche Cup R100

jrgordonsenior

The Yokohama IMSA cup front tires are 240's not 230's, and the rears 280's.

The Yoko Club series tires are available in many sizes including a 250 front which is 3/4" wider than the 240....

doc#66

possible but I do not see the 240 available in the pdf catologue

http://www.yokohama-online.com/filea...Motorsport.pdf

Bob Woodman

Soft S00---------------------------------->S04 Firm
Size S00 S01 S02 S04 Approx.
Diam. Section
Width Tread
Width Recomm.
Rim Price
230/610-17 N2385 N2386 23.9 9.45 8.5 $265.00
230/625-17 N2383 N2384 24.41 9.72 9.0 $270.00
240/640-17 N2394 N2395 25.2 9.96 9.0 $275.00
260/640-17 N2392 N2393 25.2 10.83 10.0 $275.00
230/650-18 N2221 N2076 N2077 N2090 25.59 9.72 9.06 9.0 $285.00
250/650-18 N2373 N2374 N2371 N2091 25.59 10.75 9.84 10.0 $322.50
280/650-18 N2220 N2115 N2390 N2117 25.59 11.81 11.02 11.0 $322.50
280/680-18 N2281 N2361 N2362 N2092 26.85 11.77 11.02 11.0 $425.00
320/650-18 N2253 N2254 N2389 N2257 25.75 13.43 12.6 12.5 $425.00
330/690-18 N2057 27.17 13.78 12.99 13.0 $435.00
240/640-18 N2500 N2505 25.20 9.45 9.0 $322.50
330/710-18 N2364 N2365 N2366 27.76 13.90 13.0 $435.00
280/710-18 N2348 N2349 N2350 N2351 27.91 11.85 11.0 $425.00

jrgordonsenior

That's their new catalog apparently. As recently as last week the old one listed the 240. Regardless, the IMSA Cup Yokes are 240 fronts. I just crawled into my trailer and took this lousy shot of a front tire. These are take offs from Sebring this year....

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doc#66

Good thanks