Crankshaft Polini For Race Minarelli vertical 12mm pin

Minarelli Vertical crankshaft b.12 mm from the manufacturer Polini.

The Minarelli Vertical 12 mm Polini For Race crankshaft is an important component in vertical-type engines manufactured by Minarelli. 

The crankshaft plays a fundamental role in the operation of an internal combustion engine, as it is responsible for converting the linear movement of the piston into a rotational movement. In the specific case of the Minarelli Vertical crankshaft 12 mm Polini For Race, it has been optimized to improve the performance and power of the engine.

The Minarelli Vertical crankshaft 12 mm Polini For Race is especially suitable for competition and racing applications, where maximum engine performance is sought. By improving combustion efficiency and allowing a greater flow of gases, this crankshaft contributes to a significant increase in power and torque.

Assembly instructions

Valid for:

APRILIA

• SR AC 50 1993 - 1996

ITALJET

• Yankee 50
• Pista 50

MBK

• Stunt Naked 50 2006 - 2017
• Stunt 50 2000 - 2005
• Booster Next Generation 50 1995 - 2007
• Booster Rocket 50 1995 - 2007
• Booster One 50 2013 - 2018
• Booster 13 inch 50 2012 - 2017
• Booster 12 inch 50 2007 - 2014
• Booster 10 inch 50 2004 - 2017
• Booster Spirit 50 1996 - 2003

YAMAHA

• Slider Naked 50 2007 - 2016
• Bws Next Generation 50 1995 - 2007
• Bws 12 inch 50 2007 - 2014
• Bws Spy 50 1995 - 2007
• Slider 50 2000 - 2005
• Bws Easy 50 2013 - 2017
• Bws 13 inch 50 2012 - 2017
• Bws 10 inch 50 2004 - 2017
• Bws Spirit 50 1996 - 2003

Attention! You must carry out balancing checks before installing in the engine, since manufacturers deny warranty for any balancing fault found after installation.