Crankshaft Top Racing Full Circle 12 mm – CPI / Keeway / Generic / Mawi E2

Description

Quality sports crankshaft Top Racing Full Circle is intended for 2T scooters CPI, Keeway, Generic, Mawi and other Chinese models with Minarelli engine design and a 16 mm crankshaft end.

Top Racing is a Portuguese manufacturer with more than 50 years of experience in producing standard and sports crankshafts. The Full Circle version is designed for increased pre-compression in the crankcase and is particularly suitable for 70cc tuning configurations.

Technical specifications

• Manufacturer: Top Racing
• Type: Racing Full Circle crankshaft
• Version: full / Full Circle
• Piston pin diameter: 12 mm
• Crankshaft end: 16 mm
• For 2T engines
• Suitable primarily for 70cc cylinders
• Increased pre-compression in the crankcase
• Designed for operation at higher RPM
• Increased inertia due to Full Circle construction
• Supplied with needle bearing for 12 mm piston pin
• Made in Europe

Suitable for

• CPI 50 2T E2
• Keeway 50 2T
• Generic 50 2T
• Mawi 50 2T
• other Chinese 2T scooters with Minarelli engine design, 12 mm piston pin and 16 mm crankshaft end
• generally for models from 2003 onwards with the corresponding engine version

Advantages

• Quality Top Racing sports version
• Full Circle construction
• Increased pre-compression in the crankcase
• Improved cylinder filling
• Operating range shifted towards higher RPM
• Suitable for more powerful 70cc configurations
• Needle bearing for 12 mm piston pin included
• European production

Recommendation

The crankshaft is primarily designed for use with 70cc cylinders. With standard 50cc cylinders, the Full Circle design may slightly change the engine’s operating range due to its characteristics, and performance is not necessarily better than with a corresponding standard crankshaft.

Note

Before ordering, check the piston pin diameter and crankshaft end version. This model uses a 12 mm piston pin and 16 mm crankshaft end (variator).

When replacing the crankshaft, we always recommend installing new crankshaft bearings and oil seals.