Rizoma swingarm spools are made from billet aluminum and feature a Delrin® protective ring. The combination of these two materials ensures better quality and strength over time without compromising on design. Available for a wide range of makes and models, these swingarm spools are fitted with quick attachment devices and are available in different colors thanks to their anodized finish. Rizoma swingarm spools are made from billet aluminum and feature a Delrin® protective ring. The combination of these two materials ensures better quality and strength over time without compromising on design. Available for a wide range of makes and models, these swingarm spools are fitted with quick attachment devices and are available in different colors thanks to their anodized finish.