These 175mm x 50mm profiled tires from Sunmate provide a good mix of roll. traction. and weight. The 50mm wide rubber tires get you everywhere. even mastering the roughest terrains. They also offer a fantastic grip in wet skating conditions. To keep the weight as low as possible we use a two piece 5-spoke rim made of a mix of aluminum and composite material which just looks amazing and sporty. The rim not only looks great. but it's also very durable and makes replacing punctured tires easy. The tire features a Schrader valve and can be inflated to the max. 50 psi. / 3.5 bar.