Stage6 HPC Crankshaft MK2 for Minarelli AM6 — Second-Generation Racing Performance

The Stage6 HPC MK2 is a second-generation high-performance crankshaft engineered for tuned AM6 engines from 50cc to 90cc, including high-end 70cc builds.

Fully metal construction with forged connecting rod delivers superior strength, balance, and stability at extreme RPMs—ideal for sport and racing applications.

All-metal counterweight inserts ensure precise balancing even at 16,000rpm maximum speed.

The forged connecting rod outperforms cast alternatives in durability and reliability, making this crankshaft a proven choice for serious tuning projects.

• Includes two 6204 C3 main bearings
• 12x17x15mm small end bearing and two crankshaft nuts
• Original specifications : 85mm connecting rod
• 39mm stroke
• 12mm piston pin
• 20/20mm journals
• Note : New oil seals or a complete AM6 oil seal set required for installation on a properly sealed engine base.