WEST BIKING Bike Pedal Labor Saving Adapter Folding Bicycle MTB Cycling Accessories Bike Pedal Adapter Bearing Conversion

Features:
Change riding effort labor-saving, especially on uphill roads. You can save 20% of your energy when riding.
Fine quality. have a longer service life.
The assembly is simple and quick, and will not affect other bicycle parts.
Standard: 9/16 inch (Φ14 mm) spindle is suitable for mountain 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.
Made of aluminum alloy, not easy to rust. Have anti-skid thread.