Cylinder and Italkit 74cc cylinder head Derbi Variant Start / Start 5 d.48mm

Italkit Cylinder and Cylinder Head 74cc d.48mm for Derbi Variant Start / Start 5.

The 74cc Italkit cylinder is one of the most reliable upgrade kits for the Derbi Variant Start when you are looking for a real increase in power. By moving to a 48 mm diameter, you increase the combustion chamber volume, which translates directly into much stronger torque from low revs and a pulling capacity that the stock part cannot offer.

The main technical improvement from increasing the displacement with this kit is that the engine pulls much further on climbs and regains speed with astonishing ease. Not only do you gain top speed, but the motorcycle also becomes much more responsive to the throttle. The kit comes very complete, including a 1-ring piston that perfectly balances compression with durability, ideal for those who want performance without compromising engine service life.

Technical characteristics

• Displacement: 74cc
• Diameter: 48 mm
• Bare Cylinder: Reference CI.12.573.GD
• 1-ring Piston: Reference PI.44.48A.V1
• 4 M7x125 studs: Reference ESP.07.125.4
• Gaskets: Reference VJ.12.11
• M7 nuts and washers: Reference TUA.07.4
• Compatibility: Derbi Variant Start / Start 5 crankcase
• Cylinder Head and head insert included: Yes, reference CU.12.40 / CU.12.41.1