Wheel axis, REAR (MZA) - Simson Note: Dimensions: Total length: 165 mm (150 mm + 15 mm) Axle diameter: 12 mm Thread: M12x1,5 Can be used for: Simson S50, S51, S53, S70, S83, SR50, SR80, Schwalbe KR51, Schwalbe KR51/2, Spatz SR4-1, Star SR4-2, Sperber SR4-3, Habicht SR4-4 The product of the MZA, which is the exclusive holder of the SIMSON brand.