High-quality. durable. and packed with modern features. the POWERSLIDE 4-Cross 175 frameset just may be the best off-road inline skating out there. giving you everything you need for an adrenaline-pumping experience in the great outdoors. Lightweight and incredibly strong. the POWERSLIDE 4-Cross 175 frame is made of 6061 aircraft aluminum. Made of a single piece of aluminum. this off-road inline skating frame is precise. responsive. and nearly indestructible. Ideal for cross-training. the POWERSLIDE 4-Cross 175 frame features the Vario Nordic Binding system which allows you to use all types of cross-country ski bindings so you can roll on your favorite trails with your cross-country ski boots so you can train with the perfect setup all summer long. The POWERSLIDE 4-Cross 175 frameset is equipped with newly developed 7 / 175mm tires with two-piece construction rims made of a mix of aluminum and composite materials. This versatile off-road inline skating frame can also accept 8 / 200mm tires. To complete the perfect off-road package. the 4-Cross 175 includes WICKED SUS rustproof bearings. The 4-Cross 175 frameset is the perfect frame for cross-training and long off-road skate rides.