From the perspective of dedicated cyclists, Spurcycle has given the humble bar-end mirror comprehensive R&D attention. The slim, streamlined designs from Spurcycle connect all the dots: form, function, and durability and even affordability. Precisely designed to provide maximum utility from minimum form, whether out pedaling an open road or off-the-front out pedaling your training partners. Tempered glass to ensure optical clarity. Smooth, secure ball & socket with adjustable tension. Universal, symmetric mounting for either or both sides of any drop bar bike. Item Specifications: Mount Location: Handlebar,