Our R-series is available in two mirror sizes, a 35mm and a 50mm diameter. They both provide a very similar view but the smaller mirror is more challenging to use, a tradeoff for the sake of minimal form. We consider the R35 our "pro" (vanity) mirror and the R50 our everyday touring model. 

Designed to complement a modern drop bar bicycle. Not compatible with extreme bar geometries or positions. 

From the perspective of dedicated cyclists, we've given the humble bar-end mirror comprehensive R&D attention. The slim, streamlined designs from Spurcycle connect all the dots: form, function, and durability—even affordability. Like with our bells, the goal has been to make something "simply better".