PDW Watch Your Back Bar-End Mirror Mirrors This is the universal pump

This is the universal pump choice for fat bike riders who want to inflate anywhere without hunting for a Presta-specific head

A bent rotor causes brake rub

The SRAM X

same performance as the standard S TR

while the flat side features a diamond plate traction area for secure foot placement when you want freedom from commitment on technical terrain

PDW Watch Your Back Bar-End Mirror Mirrors This is the universal pumpHow Does the PDW Watch Your Back Mirror Make Riding Safer? The PDW Watch Your Back Bar End Mirror is a compact convex mirror that installs into your handlebar end and provides a real time view of traffic approaching from behind without requiring you to turn your head or take your hands off the bars. The convex glass lens gives a wide field of view that captures multiple lanes of traffic in a single glance, and the adjustable ball joint mount lets you