Crankshaft Malossi MHR Minarelli vertical 12mm pin

High-quality Crankshaft from Malossi MHR for Minarelli Vertical engine with 12mm pin.

HPC stands for High Primary Compression (high precompression), which means it is a compact wall crankshaft. Thanks to high precompression, better cylinder filling and improved power band displacement are achieved. The result is a slightly weaker start and much more power. This version features a special Connecting rod for all cylinders with a 12mm pin.

Features:

• Half-crankshaft material: 18 NiCr Mo5.
• Monolithic forged half-crankshaft and rotating mass.
• Manufactured with extremely high-precision machines and tools.
• Five heat treatments on all components.
• High surface precision to improve reliability.
• Dynamically balanced up to 16,000 rpm.
• Forged Connecting rod in 18 Ni Cr Mo 5 with copper coating, fitted to the crankshaft with a high-speed precision needle cage.

Assembly instructions.

Suitable for:

APRILIA

• APRILIA AMICO 50 2T ONLY for PISTON WITH PIN Ø 12
• APRILIA SR 50 2T <-1993

FANTIC

• FANTIC BIG WHEEL 50 2T ONLY for PISTON WITH PIN Ø 12

ITALJET

• ITALJET PISTA 2 50 2T
• ITALJET SCOOP 50 2T
• ITALJET YANKEE 50 2T

MBK

• MBK BOOSTER 50 2T euro 0-1 ONLY for PISTON WITH PIN Ø 12
• MBK BOOSTER 50 2T euro 2 (A137E) ONLY for PISTON WITH PIN Ø 12
• MBK BOOSTER SPIRIT 50 2T euro 0-1 ONLY for PISTON WITH PIN Ø 12
• MBK BOOSTER NAKED 50 2T euro 2 (A137E) ONLY for PISTON WITH PIN Ø 12
• MBK BOOSTER NG 50 2T euro 0-1 ONLY for PISTON WITH PIN Ø 12
• MBK BOOSTER NG 50 2T euro 2 (A137E) ONLY for PISTON WITH PIN Ø 12
• MBK BOOSTER ROCKET 50 2T euro 0-1 ONLY for PISTON WITH PIN Ø 12
• MBK BOOSTER ROCKET 50 2T euro 2 (A137E) ONLY for PISTON WITH PIN Ø 12
• MBK STUNT 50 2T euro 0-1 ONLY for PISTON WITH PIN Ø 12
• MBK STUNT 50 2T euro 2 ONLY for PISTON WITH PIN Ø 12

YAMAHA

• YAMAHA BW'S 50 2T euro 0-1 ONLY for PISTON WITH PIN Ø 12
• YAMAHA BW'S 50 2T euro 2 (A137E) ONLY for PISTON WITH PIN Ø 12
• YAMAHA BW'S Original/Naked 50 2T euro 2 2010-> (A137E) ONLY for PISTON WITH PIN Ø 12
• YAMAHA BW'S NG 50 2T euro 0-1 ONLY for PISTON WITH PIN Ø 12
• YAMAHA BW'S NG 50 2T euro 2 (A137E) ONLY for PISTON WITH PIN Ø 12
• YAMAHA SLIDER 50 2T ONLY for PISTON WITH PIN Ø 12
• YAMAHA SPY 50 2T ONLY for PISTON WITH PIN Ø 12
• YAMAHA ZUMA 50 2T ONLY for PISTON WITH PIN Ø 12

Attention! Balancing checks must be carried out before installing in the engine, as manufacturers will deny warranty for any balancing fault found after installation.