Parmakit Racing Cylinder Kit 188cc with Head for Piaggio/Gilera 125-180cc AC 2-Stroke (55mm Stroke)

This complete Parmakit 188cc aluminum racing cylinder kit with performance cylinder head is designed for Piaggio and Gilera 125-180cc air-cooled 2-stroke scooters. Important: this kit is only compatible with crankshafts using a 55mm stroke — not suitable for standard 52mm stroke.

The cylinder and head are optimized for high-performance setups, offering improved cooling, durability, and increased power output. With a Ø66.0mm bore and 55mm stroke, this setup always delivers a true 188cc displacement.

Note: installation of the included cylinder head requires modification of the original cooling shrouds.

Recommended 55mm stroke crankshafts:

• BGM EVO Crankshaft 55mm Stroke
• Top Racing Crankshaft 55mm Stroke

Specifications:

• Bore: Ø66.0mm
• Only for 55mm stroke
• Connecting rod length: 105mm
• 2 piston rings
• Includes performance cylinder head
• Modification of stock cooling shrouds required
• Parmakit part number: 57608.00

Fits models including:

• Piaggio Skipper 125cc / 150cc 2-Stroke
• Piaggio Typhoon 125cc 2-Stroke
• Gilera 125-180cc AC 2T models