ATHENA P400210100017 Thermal unit cylinder kit
for HONDA TRX ER SPORTRAX, TRX R SPORTRAX
Check the compatibility with your motorcycle
FIND YOUR BIKE - compatibility table
-15%
Special Price €687.60 Regular Price €808.97The ATHENA Big Bore 490CC 100mm Thermal Group is designed for those who want to take their motorcycle performance to the next level.
With a bore of 100 mm, this component allows you to fully harness the engine's power, ensuring a displacement of 490 cc that translates into a quicker and more dynamic response.
The compression ratio of 11.6:1 optimizes fuel efficiency, enhancing acceleration and power delivery.
Whether you're tackling a winding road or simply want a more exhilarating riding experience, this thermal group represents a strategic choice for those who love to customize their bike and get the most out of their machine.
With ATHENA, every journey becomes an adventure to be experienced intensely.
- Bore: 100 mm
- Displacement: 490 cc
- Compression ratio: 11.6:1
The presence of the wire is an essential feature of this piston model. Ensure that the wire remains properly seated during installation.
| Bore | 100 |
|---|---|
| Displacement | 490 |
| Compression ratio | 11.6:1 |


