Clear Rear View for Road and City Bikes Spurcycle mirrors give you a stable, low-profile view of what’s happening behind you so you can spend more time looking where you want to go. All four models share the same compact bar-end design, with a composite nylon arm and glass mirror that stays put over rough pavement yet adjusts easily as you ride. The R35 and R50 are tuned for modern drop-bar road and gravel bikes, while the C50 and C70 are sized for city and flat-bar setups. Choose the smaller lens for a more minimal look, or the larger lens for the easiest glance-and-go visibility. Every mirror installs inside the handlebar end, fits a wide range of bar interiors, and is backed by Spurcycle’s lifetime guarantee. Small Things – Big Difference R-series mirrors designed for drop bars; C-series mirrors designed for city and flat bars (not for drop bars or extreme/full-sweep bars). Tempered glass mirror in a composite nylon body for optical clarity and long-term durability. Slim bar-end mounting keeps the mirror protected and out of the way while threading through traffic or doorways. Smooth ball-and-socket joint with adjustable tension so you can fine-tune the angle and keep it there over rough roads. Symmetric design works on either side of the bar and can be run as a single mirror or as a pair. All models fit handlebars with a 14–21 mm internal diameter and are rebuildable and guaranteed for life.