The reinforced "High Primary Compression" Racing Crankset from Stage6 is a high-quality crankset designed to optimize working compression in the crankcase. It is developed in collaboration with F Koopman and manufactured entirely in metal to ensure long durability and high performance .

Features:

• High working compression: The design increases the working compression in the crankcase, improving engine efficiency and performance.
• Durable construction: The crankset is built entirely of metal, providing robustness that can handle up to 16,000 rpm .
• Compatibility: This crankset is compatible with both 50cc and 70cc sport cylinders , such as the Stage6 Streetrace cast iron cylinders. It can also be used with high-revving racing cylinders such as the Stage6 MKII Racing due to its durability and robustness.

Recommendation:

It is recommended to use Stage6 HQ crankshaft bearings C4 steel cage with oil seals for best performance and durability

Technical specifications:

• Connecting rod length: 80 mm (original)
• Stroke: 39.2 mm (original)
• Needle bearing: 12x14x13 mm (included)
• Buttocks width: 37.80 mm
• Diameter buttocks: 72.00 mm
• Shaft diameter: 20 mm (13 mm)
• Threads: M10x1.25 mm

This crankset is an excellent choice for those seeking maximum performance and reliability in their racing engines.

NOTE! This product is out of stock, but can be pre-ordered, this will result in the delivery time being extended to 2-5 Business days.