The tyres are the only contact a motorcycle and all the power its engine produces have with the ground. It doesn’t matter if you have 20 PS or 200, having good traction means putting all that power to the best use. Bad or worn tyres mean most of the output is wasted. A soft-compound tyre is one that simply uses a softer mix of rubber, offering more grip but less durability; that is, tyre life. On the contrary, a hard-compound one will offer better durability but not as much grip. Some bikes, such as the Ducati Multistrada, have a hard-compound centre with a softer compound used to construct the edges; the logic being that the harder compound will benefit its off-road use, while the softer edges will enhance its grip when cornering on-road.