AST Rollcages V5 Weld-In 8-Point Roll Cage for Porsche 924 - FIA Honda How do I correctly choose

How do I correctly choose the size of my helmet

Arai has a wide range of racing helmets derived from over 90 years of research and development experience

On a tuned engine (supercharged N/A with high compression with or without "aftermarket" camshafts

Moreover the supplied vehicle speed signal can be transmitted to an existing speedometer to allow operation without a vehicle speed sensor (VSS)

AST Rollcages V5 Weld-In 8-Point Roll Cage for Porsche 924 - FIA Honda How do I correctly chooseAST Roll Cages SpecificationsAttention : AST roll cages designed and built according to FIA Appendix J may not be approved depending on the year of preparation of your car. Indeed the safety requirements are often revised in Appendix J by the FIA. Check with your Federation Sporting Organisation for the minimum safety requirements specific to your vehicle version engine and type of event and or championship to be contested. AST roll cages have 4 to 10