![Auto-Sensing Rear Bike Tail Light G4R–[2022] USB Rechargeable – 240HRs - Precise Brake Sensing-for Cargo Rack- 50lumen - Large Reflector-50/80mm Screw Mounted/Easy Release -Made in Taiwan](https://m.media-amazon.com/images/I/71onBMCdx7L.jpg)








🚴♂️ Light up your ride, own the night, and never get left behind!
The BikeSpark BKS-G4R is a premium auto-sensing rear bike tail light engineered in Taiwan, featuring patented brake detection that boosts brightness instantly to alert traffic behind you. With up to 240 hours of runtime across 4 lighting modes, a powerful 50-lumen output, and a wide 220° visibility angle, it combines safety and convenience. Its IPX6 water resistance, quick-release mounting compatible with 50/80mm racks, and low battery indicator make it the perfect upgrade for professional cyclists seeking reliable, hands-free safety on every ride.






| Color | Red |
| Material Type | Aluminum, Polypropylene, Polyvinyl Chloride |
| Power Source | Battery Powered |
| Batteries Included? | Yes |
| Brand | BikeSpark |
| Department | outdoors |
| Manufacturer | J-MEX Inc. |
| Item model number | AQ-6OW2-VCVP |
| Product Dimensions | 10.8 x 4 x 3.3 cm; 80 g |
| ASIN | B0991V426W |
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