Cylinder head (diameter 50mm) - 211.0304 - Aprilia RS 50 ('06-> / Derbi D50B) / Gilera RCR 50, SMT ('06-> / Derbi D50B) - Polini

Head (50mm) Polini for the following applications: Aprilia RS 50 (2006-> / Derbi D50B) / RS4 50 (Derbi D50B) / RX-SX 50 (2006-> / Derbi D50B) / Derbi GPR 50 Racing (2006-> / Derbi D50B) / Senda 50 DRD / SM (2006-> / Derbi D50B) / Gilera RCR 50, SMT (2006-> / Derbi D50B) / Valenti Racing RME, SM (Derbi D50B).

- Head for Polini aluminum cylinder kit of 80cc with a bore of 50 mm for scooters with Derbi D50B engines;
- Diameter: 50 mm.