Why is the Spurcycle C70 the easiest bar-end mirror to use on a flat bar?

The Spurcycle C70 City/Flat Bar 70mm Mirror is the largest of Spurcycle's C-series, and that big 70mm tempered glass lens is the whole point: it gives you the largest, easiest-to-read rearview of any Spurcycle mirror. A robust, rigid arm keeps the image steady and vibration-free even on rough city streets and gravel, while the smooth ball and socket joint with adjustable tension lets you set the exact angle you want and keep it there. It mounts into the end of a flat or riser bar with universal, symmetric fit for either or both sides.

This one is built for city and commuter bikes, not drop bars. It needs access to an open bar end, which may require a small grip modification, and it is not compatible with full-sweep bars. Made from durable composite nylon and weighing 97g, the C70 is slim enough to slip through doorways and traffic yet tough enough for daily commuting. Like every Spurcycle product, it is rebuildable and backed by their guaranteed for life promise, making it a mirror you install once and rely on for years.