1/8 Positron M4 S Soft OffRd: BX
Pro-Line Tire Compound Chart
XTR - FirmM2 - MediumM3 - SoftM4 - Supersoft
G8 - SoftMX - SoftMC - Firm (Clay)Z3 - Firm (Carpet)X2 - MediumX3 - SoftX4 - Supersoft