Your own personal bike lane. Wherever you ride.
The NiteRider Sentinel 250 doesn't just make you visible, it projects your space onto the road. Two laser lines beam down on either side of your bike, creating a glowing boundary that drivers can actually see. It's the difference between hoping cars give you room and showing them exactly where your lane is.
250 lumens of Daylight Visible Flash (DVF) cuts through sunlight so you're not just a nighttime rider. Seven modes split between taillight-only, laser-only, and combo options let you dial in exactly what the situation calls for. Cruising the Junction & Breakwater at dusk? Lasers on. Group ride where you don't want to blind the rider behind you? Group Ride Mode keeps you visible without being obnoxious.
At 116 grams, it's light enough to clip onto a bag strap or belt loop when you're off the bike. The seatpost mount fits 15.8mm to 31.6mm with a quick-release tab for easy charging without removing the whole setup. Micro USB rechargeable, IP64 rated for dust and water, and built to FL1 standards for impact.
The specs:
- Output: 250 lumens max
- Weight: 116g
- Taillight modes: Flash 1 (6.5hrs), Flash 2 (5hrs), High Steady (8hrs), Low Steady (45hrs)
- Laser modes: Slow Flash Lasers (14hrs), Fast Flash Lasers (14hrs), Steady On Lasers (7hrs)
- Charge time: 3 hours via Micro USB
- Battery: Li-Po 3.7V, 500mAh
- Rating: IP64 water and dust resistant, FL1 impact tested
- Mount: Seatpost strap fits 15.8-31.6mm, plus clothing clip
- Extras: Laser lanes, Group Ride Mode, low battery indicator
Drivers see lights. Drivers respect lanes. Give them both.