Crankshaft reinforced Minarelli vertical pin=10mm

Reinforced Crankshaft – Minarelli Vertical (Yamaha BW’s / MBK Booster / and more)

High-quality reinforced crankshaft for scooters equipped with Minarelli vertical engines, such as the Yamaha BW’s or MBK Booster. Designed for both everyday use and light tuning applications, this crankshaft combines reliability with solid performance.

The crankshaft features a silver cage bearing and maintains compression characteristics similar to the original, ensuring smooth operation and long service life. The polished connecting rod minimizes internal stress, reducing the risk of failure even under higher RPM conditions. Capable of handling up to 12,000 rpm, it’s an excellent upgrade for 70cc sport setups.

Specifications :

• Reinforced crankshaft with silver bearing

• Same compression ratio as the OEM crankshaft

• Polished connecting rod for improved durability

• Suitable for engines up to 12,000 rpm

• For 10 mm piston pin