Description
Bumper spike / felling dog fits Stihl 017, 018, 021, 023, 025, MS170, MS180, MS210, MS230 and MS250 chainsaws. The bumper spike is the toothed metal bracket mounted on the front of the chainsaw body, just behind the guide bar. When bucking or felling, the operator presses the spike into the timber to create a fixed pivot point, allowing the saw to be rotated through the cut with greater control and less physical effort. A cracked or broken bumper spike removes this pivot point, making heavier cuts harder to control and increasing operator fatigue. Replacing it restores full felling dog function and allows the saw to be used correctly during demanding cutting work.
Fits specified Stihl models:
- Stihl 017
- Stihl 018
- Stihl 021
- Stihl 023
- Stihl 025
- Stihl MS170
- Stihl MS180
- Stihl MS210
- Stihl MS230
- Stihl MS250








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