ATHENA crankshaft stroke 40 pin 12 50mm
for KTM, APRILIA, GILERA, DERBI
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FIND YOUR BIKE - compatibility table
-15%
Special Price €168.20 Regular Price €197.84The ATHENA crankshaft with a 40 mm stroke and 12 mm pin represents a strategic choice for those looking to optimize their motorcycle's performance. With a stroke of 40 mm and a crank radius of 20 mm, this component is designed to ensure a perfect balance between power and smooth operation. The bearings, specifically sized with a connecting rod foot of 12x15x15 mm and a connecting rod head of 16x22x12 mm, provide excellent stability and reduce wear, extending the life of the engine.
The precision in the diameters of the pins, both on the pulley side and the flywheel side, fixed at 20 mm, contributes to a solid and reliable connection, while the total thrust width of 46 mm offers robust support during acceleration and deceleration phases. Finally, the lengths of the pins, measuring 50 mm for the pulley side and 57 mm for the flywheel side, have been studied to ensure perfect integration with the engine system, thus ensuring excellent response and smooth power delivery.
- Stroke: 40 mm
- Crank radius: 20 mm
- Connecting rod foot: 12x15x15 mm
- Connecting rod head: 16x22x12 mm
- Pin diameter (pulley side and flywheel side): 20 mm
- Total thrust width: 46 mm
- Pin length on pulley side: 50 mm
- Pin length on flywheel side: 57 mm
This crankshaft is therefore a key element for those looking to improve their motorcycle's performance, allowing them to tackle any route with greater efficiency and responsiveness.
| Stroke | 40 |
|---|---|
| Crank radius | 20 |
| Flywheel | 20x20x57mm |


