Racing crankshaft Motoforce – Minarelli horizontal

High-compression Motoforce Racing crankshaft for Minarelli horizontal engines – strong performance at a great price. Ideal for 50cc and 70cc Sport/Racing setups.

Made from hardened steel and equipped with a silver-plated FAG small-end bearing, plus PTFE inserts to reduce dead volume and slightly increase pre-compression. Supports up to approx. 13,000 rpm and can be installed as a direct replacement for the stock crankshaft.

We recommend installing new main bearings (sold separately).

• Reinforced racing crankshaft
  
• Small end bearing: 10 × 14 × 13 mm
• Piston pin: 10 mm

• For Minarelli horizontal engines: Yamaha Aerox / Jog / Neo’s, Aprilia SR50, Malaguti F12/F15, and more