Crankshaft TPR Factory Minarelli AM6 c.47mm b.98mm pin 14mm

Crankshaft stroke 47mm, Connecting rod 98mm and gudgeon pin 14mm TPR Factory for Minarelli AM6.

Manufactured in high-strength steel with sheet metal shafts and balanced with aluminium and tungsten inserts. 18mm shaft and the forged connecting rod has a centre-to-centre distance of 98 mm and a 14mm gudgeon pin.

Exceptional performance under extreme conditions, capable of withstanding up to 20,000 RPM. Designed and manufactured for your 100cc TPR Factory 99GT52FAM0 cylinder, but it is adaptable to other cylinders by modifying several parameters.

Technical features

• Increased stroke: The 47mm stroke, compared to the original, increases the engine's effective displacement, generating more power at low and mid-range.
• Long connecting rod: The 98mm connecting rod optimises the connecting rod to stroke ratio, improving mechanical efficiency and reducing lateral forces on the cylinder.
• Reinforced gudgeon pin: The 14mm gudgeon pin provides greater resistance to high revolutions and loads, ensuring exceptional reliability.
• Dynamic balancing: The crankshaft has been carefully balanced to reduce vibrations and ensure smooth operation at high revolutions.
• Significant power increase: The combination of extended stroke and long connecting rod provides a notable increase in maximum power and torque.
• Greater acceleration: The optimisation of the connecting rod to stroke ratio improves engine response and acceleration.

Assembly instructions

Attention! The crankcase must be modified for installation, and balancing must be carried out to avoid future mechanical failures.