We believe in mirrors like we believe in bells. Ride with one for a week and you'll never again want to do without. R35 | R50 Our R-series is available in two mirror sizes to fit drop bar bikes, 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. Specifications: Materials: composite nylon with glass mirror Mirror size: ⌀35mm or 50mm Weight: 31g R35 / 45g R50 Origin: Made in China, Guaranteed for Life Fit: handlebar I.D. 14-21mm C50 | C70Our C-series is available in two mirror sizes, a 50mm and a 70mm diameter. They both provide a very similar view but the smaller mirror shrinks the image a little to achieve a more trimmed down overall form. Specifications: Materials: composite nylon with glass mirror Mirror size: ⌀50mm or 70mm Weight: 73g C50 / 97g C70 Origin: Made in China, Guaranteed for Life Fit: handlebar I.D. 14-21mm