K-EDGE Out-front computer mounts for Sigma ROX cycling computers. This is our next generation of industry-leading Computer Mounts – stronger, easier, more versatile, and more stylish design to complement your Sigma and your bike. The ultimate upgrade for your Sigma computer. Our advanced co-polymer Sigma insert locks your computer in place with strength and security. Designed and tested extensively so that our replaceable insert breaks away instead of your computer tabs in the event of a crash or mishap.