Reinforced, primarily intended for engines with a power output above approx. 5~6hp. but also works for lower outputs from approx. 1hp.
Technical data:
- Free length: 37.2mm (length without load)
- Outer diameter: Ø=21mm
- Wire diameter: Ø=2.7mm
- Number of turns: 7
- Number of springs: 4pcs
