As I read the 2004 Solo Rule Book, Kevin, Section 3.3.2 "strongly 
recommends" that all cars be equipped with a roll bar or roll cage and 
"requires" that certain cars have either a roll BAR that meets SIIR 
Appendix C OR a roll CAGE that meets GCR Section 18.  Since all of your 
emails on this subject have used the word CAGE, I would think that if 
you built a CAGE that meets GCR Section 18 to the letter, it would be 
legal and unprotestable in all Solo classes.
I would also THINK that a full GCR-legal CAGE would be much stronger 
than just an Appendix C-legal BAR - even if the tubing is slightly 
(1/4-inch) smaller in diameter.  But I'm no engineer!!!
However, that's only MY opinion.  And we all know about opinions. 
They're just like *ssholes.  Everybody's got one and they all stink!!!  8<{)
John (Old Fartz & TLS #37) Lieberman
KWall73108@aol.com wrote:
> SCCA GCR specifies a 1.5" OD roll cage for cars under 2500 lbs.  S1R 
> specifies 1.75" OD roll bar hoop and braces for cars over 2000 lbs.  Could a 
>2100 lb 
> car be protested in any of the Solo 2 classes if equipped with the 1.5" OD 
>roll 
> cage?
> 
> TIA,
> Kevin Wallace
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