The straps that come on our lights are tested and designed to stretch through their full range in normal use. This means they have no problem spanning wide aero handlebars.
When you're putting the light on, remove the cradle and turn the strap 90 degrees to make it easier.
Once installed, straighten the light and slide it forward to the front edge of the bar.
These bars belong to our communications director who (of course) rides with our lights. The circumference of the bar there is 5.82 inches or 148 mm. It doesn't get much wider than that!
If you still would like a longer strap, these smaller lights can use the larger strap from our heavier lights. These are longer, but don't have as much stretch over their static length.
Our Strip Drive lights are also well suited to aero seatposts.
For extra deep seatposts, you may need to run two mounting straps looped together.
You can reach out to our Support Team by submitting a request with any questions you might have about this setup, or any other inquires.