SARIS Bike Trainer Riser Block, Stackable 3-Level Bike Trainer Front Wheel block

Strong and durable bike trainer leveling block for a stable, worry-free ride with any rear wheel-mounted trainer. Featuring a unique 3-level design this wheel block for bike lets you select the level of difficulty. The bike trainer riser is compatible with all the SARIS rear wheel mounted bike trainers. Made of composite materials that guarantee the durability of your bicycle wheel block. Manufactured with safety as its purpose, the SARIS Indoor Bike Riser makes sure your front wheel stays in place, so you can have a comfortable ride, free of extra movement and worries.