How often do you change your lawn mower blades?
Devlin Poul | 22 June, 2026
Old blades, even after sharpening, no longer provide adequate airflow under the deck, causing grass to fall and clump rather than rise. Over time, metal loses its proper edge profile, directly impacting the quality of the cut and grass ejection. When considering a replacement, it's best to upgrade to high-lift blades like the 2105300125a. These high-lift blades better shape the airflow and eject the clippings more efficiently, producing the cleanest cut possible.
Ften Conola | 22 June, 2026
If your blades are 3-4 years old and you've sharpened them regularly, but grass clumps still appear, this usually indicates something more than just a sharpness issue. Over time, the edge wears unevenly, the cutting geometry changes, and instead of a clean cut, the grass begins to "tear" or clump.
In this case, sharpening only provides a temporary improvement but doesn't restore normal cutting quality.
BillMemerik | 19 June, 2026
My blades are probably 3-4 years old. At the end of last season, I was getting a lot of grass clumps, despite sharpening them several times throughout the season. I attributed it to heavy rains and rapid growth, but it seems worse than ever. Could it be the old blades?