Taillights

Portland Design Works' Gravity Tail Light has a built-in accelerometer that detects deceleration or swerving and automatically changes to a super bright, solid beam to warn following traffic. To allow the accelerometer to calibrate, always install the Gravity on your bike before powering it on. Hold the power button down for 1 second to turn the light on or off. Then, keep your bike still for 1 second after pressing the power button to complete the calibration. The Gravity Tail Light has a redesigned mount that works with the included seatpost and seatstay brackets. - Automatic accelerometer brake light function shines 100 lumens bright - 2 Modes (runtime): Solid - 20 lumens (12 hours), Flash - 80 lumens (30 hours) - USB rechargeable li-polymer battery - Weatherproof exterior for all season riding - Includes brackets for seatpost and seatstay mounting - Mounts vertically or horizontally - Includes Micro USB recharging cord - Weight: 1.9 oz

Tiny but tenacious, the Stix Sport tail light packs a 18-lumen punch that can be seen from multiple directions. Its wide-angle light and six modes—ranging from steady to flash—make you highly visible to drivers, which will increase both your safety and peace of mind while riding. The tail light runs for up to 18 hours, depending on mode choice, and is charged easily and conveniently via USB. - 7 to 18 Lumens output. - 2.5 hours to 23 hours runtime. - Charge in the USB port of any laptop or phone charger in two hours (no extra cables needed). - Flexible mounting system works with handlebar and seatposts from 22.2mm up to 35mm in diameter, as well as most seatstays. (Aero strap mount available separately) - Six modes including: Steady High, 16 Lumens; Steady Low, 7 Lumens; Power Surge, 16 Lumens; Power Flash, 18 Lumens; Disco Flash, 7 Lumens; Eco Flash, 7 Lumens - Red/Green battery charge level indicator. - Additional mounting options available separately.

The NiteRider Sentry Aero 260 is a lightweight, aero taillight featuring dual LED light strips to deliver 260 lumens of Daylight Visible red light. An inner and outer lens design helps to shape light output, producing long-range visibility when viewed directly from the rear, but also providing ample surrounding light to the peripheral, making the Sentry Aero 260 visible from nearly any angle. - Daylight Visible Flash (DVF) - 260 lumen super bright tail light - Group Ride Mode – be seen without distracting fellow cyclists - Easy on and off Aero seat post strap mount with quick release tab - Aero seat post strap included - Convenient USB rechargeable - Super bright Daylight Visible Flash mode - Innovative Aero shape with excellent side visibility - FL1 Standard IP64, dust and water-resistant WARRANTY - The Sentry Aero 260 is backed by NiteRider's lifetime warranty that covers any defects in material and workmanship, mechanical components (housings, covers, mounts and fasteners) and LEDs. SYSTEM INCLUDES - LED Tail Light - Seat post Mount - USB Cable