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

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

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

The main technical improvement of increasing the displacement with this kit is that the engine revs much higher on climbs and regains speed with remarkable ease. Not only do you gain top speed, but the bike also becomes much more responsive to the throttle. The kit is very complete, including a two-ring piston that perfectly balances compression with durability, ideal for those who want performance without compromising engine life.

Technical specifications

• Displacement: 74cc
• Diameter: 48 mm
• Bare cylinder: Reference CI.12.573.GD
• 2-ring piston: Reference PI.26.48A.V2
• 4 studs M7x125: Reference ESP.07.125.4
• Gaskets: Reference VJ.12.11
• Nuts and washers M7: Reference TUA.07.4
• Compatibility: Derbi Variant Start / Start 5 crankcase
• Cylinder Head and small cylinder head included: Yes, reference CU.12.40 / CU.12.41.1