The ATHENA Big Bore 80CC Thermal Group with a Ø 50 mm head is designed for those who want to push their motorcycle's performance to the next level.
With a bore of 50 mm and a displacement of 77 cc, this component is intended to optimize power delivery, offering more responsive acceleration and higher top speed.
The compression ratio of 14.0:1 ensures efficient combustion, helping to improve engine response and maximize overall performance.
Ideal for motorcycle enthusiasts looking to get the most out of their vehicle, this thermal group represents a strategic choice for those seeking a significant upgrade.
With the ATHENA Big Bore Thermal Group, every ride becomes an exciting and engaging driving experience.
Bore: 50 mm
Displacement: 77 cc
Compression ratio: 14.0:1
Head: Ø 50 mm
Power delivery optimization
Responsive acceleration
Higher top speed
Race Use Only Product - Not intended for street use
