CATEYE - Rapid X2 USB Rechargeable LED Bike Safety Tail Light, Rear, 80 Lumens;

The USB-rechargeable Rapid X2 uses surface-emitting LED strips wrapped in CatEye lens technology to deliver 50 lumens of rear lighting for unparalleled safety, day or night. The compact, lightweight body securely mounts almost anywhere, including round and aero seatposts, seatstays, handlebars and forks. For ultimate versatility, the optional Spacer X allows the Rapid X2 to mount to our standard Flex-Tight bracket, rear rack bracket, saddle rail mount, clothing clip and Fizik saddle bracket. 6 modes allow you to choose the light pattern best suited for your riding environment, superior side visibility means they'll see you coming from any angle and Battery Auto Save feature ensures you'll never get left in the dark.