DR 85 cc CYLINDER KIT - VESPA 50 - APE 50

DR cast iron cylinder kit Ø 50 mm, 85 cc, for Vespa 50 and Ape 50, developed as a replacement for the original cylinder to obtain a more responsive and smoother-running engine while maintaining a simple and reliable setup. The transfer port design allows improved performance compared to stock, with increased torque and a livelier response.

Compatible with the original 43 mm stroke crankshaft, the kit allows direct installation with no crankcase machining required. Supplied complete with cylinder head and gaskets, ready to install and suitable for basic tuning without complications.

The DR cylinder stands out for its robustness, long service life and low fuel consumption, offering a good balance between performance and reliability. For further performance improvements, it can be combined with a racing crankshaft, larger carburetor, variable-advance electronic ignition, longer gear ratios, reinforced clutch and suitable exhaust.

Basic carburetion guidelines (to be adapted to the setup):
SHB 16.16: main jet 66–68
SHB 19.19: main jet 80–82
PHBL 24: main jet 72–76 – pilot jet 50 – atomizer AQ264 – needle D22 – slide 40 – starter jet 60
PHBL 24 reed valve: main jet 100–102 – pilot jet 64 – atomizer AQ264 – needle D22 – slide 40 – starter jet 60

Recommended spark plug: Champion L78C, NGK B8HS, Bosch W3AC, Denso Iridium IWF27
Recommended ignition timing: 17°

For any information or support in choosing the most suitable configuration, Emporio dello Scooter customer service is always available.

Products reserved exclusively for competition use in designated venues in accordance with the regulations of the competent sporting authorities. We decline any responsibility for improper use.