ATHENA Big Bore 300CC 85mm Cylinder Kit for Yamaha
for YAMAHA WR F, YZ F
Check the compatibility with your motorcycle
FIND YOUR BIKE - compatibility table
-15%
Special Price €647.90 Regular Price €762.20
The ATHENA Big Bore 300CC 85mm Thermal Group is designed for motorcyclists who want to push their performance to the next level. With a bore of 85 mm, this component increases the displacement to 304.15 cc, allowing for greater power and torque compared to standard thermal groups. The increase of 8 mm over traditional models not only improves engine efficiency but also provides a more responsive and engaging riding experience.
The compression ratio of 13.3:1 is designed to optimize combustion, ensuring an immediate throttle response and greater acceleration in every situation. This thermal group is ideal for those looking to customize their motorcycle, transforming it into a true performance machine. With the ATHENA Thermal Group, every ride becomes a high-speed adventure, where power and precision come together to deliver unique thrills on two wheels.
- Bore: 85 mm
- Displacement: 304.15 cc
- Increase over traditional models: 8 mm
- Compression ratio: 13.3:1
- Greater power and torque compared to standard thermal groups
- Responsive and engaging riding experience
Race Use Only Product - Not intended for road use
| Bore | 85 |
|---|---|
| Displacement | 304,15 |
| Compression ratio | 13.3:1 |
