The Toyo Proxes R28 was a specialized sport tire designed specifically for particular vehicle applications, most notably the Speed Miata, representing a discontinued model from Toyo's performance tire lineup. This tire featured very firm construction characteristics optimized for the specific suspension geometry, weight distribution, and performance requirements of its target vehicle applications. Limited information remains available about the R28 as it has been discontinued and replaced by newer generations of Toyo's Proxes competition tire family including the R888R, RR, and R models that represent the company's current DOT-legal racing tire offerings. The R28 incorporated performance-oriented compound formulations and construction techniques designed to deliver enhanced grip and handling characteristics for enthusiast driving applications.
The Toyo Proxes R28 has been superseded by more advanced models in Toyo's current lineup including the Proxes R888R (delivering faster lap times and better dry handling), Proxes RR (race-ready with 4/32 inch tread depth for consistent lap times), and Proxes R (designed for dry road racing and high-performance driving experiences). These successor models incorporate decades of additional tire development and racing experience, offering significantly enhanced capabilities compared to the discontinued R28. Owners of vehicles originally fitted with Proxes R28 tires should consult with tire specialists to identify appropriate replacement options from Toyo's current Proxes lineup that match their specific performance requirements, vehicle applications, and intended use cases. The evolution from R28 to current Proxes models represents Toyo's ongoing commitment to advancing competition tire technology while maintaining the DOT certification required for street-legal track day and autocross applications that made the original R28 appealing to performance driving enthusiasts.
