For a stable, worry-free ride with any rear wheel-mounted trainer. Product Features - For a stable, worry-free ride with any rear wheel-mounted trainer. - Unique 3-level design lets you select the level of difficulty. - Stack two blocks to simulate climbing workouts. Three different positions to raise your front wheel and simulate hill climbs - 2.1 inches (5.3 cm) - 2.7 inches (6.8 cm) - 3.1 inches (7.9 cm)

- Adapter for Tacx Direct Drive trainer - 01 is compatible with 142 x 12mm and 148 x 12mm - 02 is compatible with 135 x 10mm - 03 is compatible with 135 x 12mm (w/5 mm spacer included with every Tacx Direct Drive trainer), 142 x 12mm and 148 x 12mm - 04 The thru axle adapter kit is for bikes with a 12 mm thru axle. The axle adapter is required to couple the rear stay with the thru axle mount on a Tacx NEO or FLUX Smart trainer.

The Elite Smart Sterzo riser block allows steering up to 34 deg while riding your rear wheel trainer while using ANT and Bluetooth communication protocol, interacts with compatible apps to give you the most realistic indoor ride. It’s rotating pivot features a practical automatic return system for you to easily get the handlebar back to its original position. Compatible with tires up to 56mm wide

This height-adjustable front wheel support can simulate both flat terrain and slopes perfectly - Unique design with 5 levels lets you adjust the height of your front wheel to simulate hill climbs up to 6% - Anti-slip rubber feet eliminate handlebar vibrations - Internal design that guarantees maximum wheel stability - Suitable for both road and MTB - You can attach to the trainer frame when not in use for easy transport and storage

Protects the bicycle from sweat and avoids corrosions or rust. - Prevents an accumulation of sweat on the frame and components that would lead to corrosion or affect the finish - Sits above the top-tube and can be adjusted for different bicycles - Washing-machine friendly