Marine Crankshafts are fully forged and finished from the highest quality E4340 Aircraft grade Billet Steel. DME Racing uses Marine Crankshafts in all their team bikes for the trusted reliability and performance you need on race day!
- Triple heat treated for extreme strength, toughness & durability.
- High-speed straight-line oiling system.
- Dynamic “no holes” balance.
- Through pin lightning holes.
- Ion-plasma nitride for superior journal surface hardness & wear resistance.
- Weight 21 lbs. (stock weights 24.6 lbs)
FITMENTS – HAYABUSA
- 2MM / 65MM
- 3MM / 66MM
- 5MM / 68MM
- 9MM / 72MM
FITMENTS – GSX-R1000 2001-2008
- 4MM / 63MM
- 6MM / 65MM
- 8MM / 67MM
FITMENTS – GSX-R1000 2017-2020
- 8MM / 67MM
- Hayabusa GEN1 OEM Stroke is 63MM
- Hayabusa GEN2 OEM Stroke is 65MM
- GSX-R1000 OEM Stroke is 59MM
ABOUT E4340 Stainless Steel
E4340 is a highly alloyed, electric-furnace processed; vacuum degassed grade, which conforms to the rigid aircraft standards of AMS-2301. It contains approximately 0.8% chromium, 1.8% nickel, and 25% molybdenum. Combining these elements assures deep and uniform hardness when heat-treated, particularly when oil is quenched. It possesses exceptional ductility and toughness and remarkably high fatigue strength, snaking E4340 the steel for highly stressed parts operating under heavy-duty conditions. It also maintains its strength and hardness while operating under extremely elevated temperatures.
E4340 is most typically used in highly stressed parts that must operate under severe conditions. It is commonly used in the aircraft and missile industries.
ABOUT MARINE CRANKSHAFT
Marine Crankshaft, Inc. is a leading repair and modification crankshaft shop, operating for over 30 years, and manufacturing custom billet crankshafts since 2007.
Dedicated to quality, value, and exceptional customer service, Marine Crankshaft, Inc. services clients worldwide throughout the Americas, Europe, Australia, New Zealand, the Middle East, and beyond!
We provide a wide array of crankshaft repair services for Automotive, Motorcycle-Power Sports, Import, Outboard Marine, and Billet crankshafts. Marine Crankshaft, Inc. utilizes the experience, knowledge, and customer care for your crankshaft repair or manufacturing needs.