testing with motocross bikes led to the development of the MX intermediate IRCs involvement with the major motorcycle manufacturers and extensive terrain series.The GS45Z Provides maximum traction, braking and sure- footed cornering for a broad range of track conditions Tough tires for smaller machines OE for the HONDA CRF80R & CRF100R Tube Type Fits: Honda CRF80F 2004-2016 XR75 1973-1978 XR80 1979-1984 XR80R 1985-2003