Use the Climbing Riser Block for a stable, worry-free ride on any rear wheel-mounted trainer. Unique 3-level design lets you select the level of difficulty with three different positions to raise your front wheel and simulate hill climbs.

• Works with any rear wheel-mounted trainer
• 3-level design for 3 levels of difficulty
• Stack two blocks to simulate climbing workouts

• 3 different positions; 2.1 inches (5.3 cm), 2.7 inches (6.8 cm), 3.1 inches (7.9 cm)