BATTLAX BT-39 is bias ply tire for sporty type riding. Mainly suited for the motorcycles from 125cc to 400cc, the H-rated BATTLAX BT-39 gives excellent dry grip and handling. BATTLAX BT-39SS is for production racing from 50cc to 125cc class. BT-39SS was developed to win the production racing with its comprehensive line-up of sizes.