On 5/21/2019 10:00 AM, Jeff Liebermann wrote:

snip

$12 for two straps? That seems rather expensive.

It is. But a kluge of cable ties and associated bits and pieces is not
going to work as well and by the time you buy all the parts you'll spend
more time cobbling it together.

There are also the Zefal Gizmo clamps
https://www.amazon.com/dp/B01MSM1O1H and the Topeak Versa Mount
https://www.amazon.com/dp/B077S5G4SL.

Above all, don't use hose clamps! And don't drill holes in the frame for
Rivnuts.