Bicycle Pedal Labor Saving Adapter

Material：Quality Aluminum Alloy CNC
Mounting screw specifications：9/16-20

Features:

1.Using this product (bicycle magic stepper), you can save 20% of your energy when riding.
2.Durable: high quality. have a longer service life. The assembly is simple and quick, and will not affect other bicycle parts.
3.Standard: 9/16 inch (Φ14 mm) spindle is suitable for mountain bikes, hybrid bikes, city bikes, BMX bikes, mountain bikes, vintage bikes, cruisers, off-road vehicles, off-road vehicles, folding bikes, road bikes, track and field bikes, Unicycles, city bikes