my son is building a 79 Honda cm400t he is on a very tight budget he needs a rear tire tire and found a low cc tire does anyone know about these he will be using it as a everyday commuter about 30 miles round trip they offer pirelli,michelin,dunlop,and bridgestone tires. they are at least name brand and they have the exact size he needs at half the cost.so is there any difference in them than a regular tire