High-quality Stage6 HPC MKII Crankshaft for Yamaha Aerox and other scooters with Minarelli horizontal engines.
A top-tier tuning crankshaft designed for sport and racing engines, offering outstanding precision, strength, and durability — the perfect match for 50cc to 70cc performance setups.

Advantages of the Stage6 HPC MKII Crankshaft

The MKII (High Primary Compression) is the second-generation HPC crankshaft from Stage6, engineered specifically for tuned and racing engines — from lightly modified sport builds to high-end racing configurations.

Made entirely from high-quality metal, including the counterweight inserts, it provides exceptional balance and stability, even at high RPMs. The forged connecting rod ensures superior strength and reliability compared to cast components.

Technical Specifications

• Connecting rod: Original
• Stroke: Original (39mm)
• Piston pin: 10mm
• Small end bearing: 10×14×13mm
• Maximum speed: up to 16,000 rpm
• Intended use: Racing / High-end racing
• Includes: 2 nuts (only one may be needed depending on model)

A robust, precisely balanced crankshaft for sport and racing cylinders, ideal for riders who demand top performance and long-term reliability.