- Out of stockManufactured using a range of organically sourced materials and constructed with a steel frame and polymer outer shell. Fitted with a safety arm on the outer side. This is designed to release when under pressure in the event of the rider experiencing a fall. The retractable/flexible arm will release to prevent the rider’s foot from becoming caught in the stirrup. Main frame colour: Black Elastomer springs (shocks): Grey Footbed (treads): Grey. Magnets: Black with Flex-on logo