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Universal Trimmer Upgrade Kit
Give your trimmer new life. Downloadable, detailed instruction manuals, visual guides, and tailored instruction videos will make install a breeze.
Model Numbers / SKUs
Model Numbers / SKUs
Aero-Flex® Line Blades are best kept stored away from direct sunlight or extreme heat conditions. If possible, store in original packaging to keep from bending or warping.
Our system is designed to fit virtually all trimmer models. Double check your trimmer’s compatibility and watch tailored instructional videos here and in our manufacturer's table below.
Don't see your make or model? Drop us a line and our team will get back you to in a snap.
| Manufacturer | Style | Model No | Installation Video |
| Bolens | Black Bump Head Conversion | FPO | |
| FPO | |||
A full array of components are available to select the proper parts for your trimmer. The degree of difficulty in conversion is relatively simple especially when you follow the detailed directions provided by Aero-Flex® Technologies, Inc.
There are some trimmer heads that turn clockwise and some turn counterclockwise. For maximum aerodynamic efficiency, the rounded edge of Aero-Flex® line blade leads into the cut so as to gain the low drag aerodynamic advantage.
Orange line blades are for counterclockwise while yellow are for clockwise rotation and they are intended to cut on the leading blunt side to best realize the scientific streamlining.
The specific colors of orange and yellow were selected because they are most capable of reflecting light back to the operator. This provides a helpful control when you can see the visible line blade plane.
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