- Wide: 135mm - Radius: 365mm - Length: 106cm - Thickness: 2mm. Manufactured by Peter Penz Custombikes to help bike builders to create great one-off bikes. Fenders are available in a width and radius specific selection for that perfect precision tire-fit. Made from 2mm thick steel to give it both strength and great characteristics for welding. Note: Length is measured around the radius. Width is measured from inside to inside and mentioned for reference only. / Fitment: Universal