SP 50cc 40mm Cylinder Kit – Derbi NT D50B0 – Without Head & Gaskets

The SP 50cc 40mm cylinder kit is a standard replacement cylinder for Derbi NT D50B0 50cc 2-stroke engines. Suitable for all new type Derbi and Aprilia models from 2006 onwards.

With a 40 mm bore, this cylinder maintains the original 50cc displacement and factory performance. Ideal for replacing a worn or seized original cylinder.

This kit is supplied without gasket set and without cylinder head. These must be ordered separately.

Technical specifications:

• Brand: SP
• Displacement: 50cc
• Bore: 40 mm
• Engine type: Derbi NT D50B0
• Fitment: Derbi & Aprilia from 2006
• Tuning level: Standard / OEM replacement

Supplied including:

• 40mm cylinder
• Piston
• Piston rings
• Wrist pin
• 2x Wrist pin clips

Note: supplied without:

• Gasket set
• Cylinder head

Matching parts (order separately):

Gasket set:

Derbi NT D50B0 Standard Gasket Set

Cylinder head:

Original Model Derbi NT D50B0 Cylinder Head Set

Loose piston:

39.85mm Derbi D50B0 Piston

Also known as Derbi NT 50cc cylinder, D50B0 40mm cylinder kit, Derbi 2006+ replacement cylinder or standard 50cc Derbi NT cylinder.