New rains

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PostPosted: Thu Jul 15, 2021 12:46 pm
Surprised I haven't read anything here but I guess we're getting new rain tires after the runoffs. Previously I think I read that the old ones wouldn't be legal but I believe that's not true. Which is nice since I have two sets that haven't been used yet :)
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PostPosted: Thu Jul 15, 2021 1:22 pm
that's my understanding as well... the H20 will continue to be legal but no longer available.
Bay 12, please.
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PostPosted: Thu Jul 15, 2021 1:29 pm
Excerpt of e-mail received from Robey Clark today:

SRF/SRF3 Update:

As October 4, 2021, there will be a new SRF Rain Tire. The "W2". The Current "H2O" rain tire will still be compliant to run but will no longer be in production and there will be a very limited supply available after the Runoffs.

The "W2" compound will provide for improved performance in cold and rainy track conditions than the "H2O" compound but should have good durability.

New SRF Rain Tire Info:
Front – Hoosier P/N 46100 P185/60R13 W2 (compliant Oct. 4, 2021)
Rear – Hoosier P/N 46105 P205/60R13 W2 (compliant Oct. 4, 2021)

SADEV-SRF3 6-Speed Sequential Gearbox:

The SADEV gearbox is on schedule to be introduced in late September. The gearbox will be compliant beginning Monday, October 4, 2021. If you are interested in ordering a Sadev-SRF3 gearbox, please contact Nikki at 303-693-2111 or at

Thank you and keep on racing!

Robey Clark
SCCA Enterprises
Jerry Aplass SRF #204
San Francisco Region
"Straights are for fast cars. Turns are for fast drivers." - Colin McRae

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PostPosted: Thu Jul 15, 2021 2:54 pm
I found this press release froom January on the Hoosier site:


And from May:

Softer Tread Compound Released For DOT Wet Tire Line

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