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Unlike traditional strap or clip systems, the Zyntrisa Bike Tail Light's industrial-strength magnetic connection creates an unshakeable bond. The powerful neodymium magnetic force withstands bumpy roads, aggressive riding, and harsh vibrations while maintaining perfect alignment throughout your entire journey safely.


The Zyntrisa Bike Tail Light features advanced motion sensors that automatically brighten for 1.5 seconds when you brake. This intelligent response combined with rock-solid magnetic mounting ensures your safety signals never fail when you need them most during critical stopping situations.




The Zyntrisa's magnetic mounting system represents a significant advancement in cycling safety technology, combining convenience with industrial-grade reliability.
– Michael Rodriguez

ZYNTRISA FEATURES ALL YOU CAN EXPECT:

When your speed decreases significantly, the Zyntrisa Bike Tail Light immediately highlights for 1.5 seconds, providing crucial warning to trailing vehicles. This automatic response time is faster than human reaction, giving drivers extra precious seconds to respond safely during sudden stops.

Say goodbye to complicated installations. The Zyntrisa Bike Tail Light's magnetic base stays permanently on your seat post while the light unit snaps on magnetically in seconds. The industrial-strength connection withstands road vibrations yet releases instantly when needed.

Seven distinct lighting patterns including single flash, double flash, strobe, water drop, breathing, alternating, and steady allow you to customize visibility based on riding conditions. The Zyntrisa Bike Tail Light ensures you're noticed in any environment.


The Zyntrisa Bike Tail Light's ambient light sensor intelligently manages power consumption by activating only when needed. It automatically enters sleep mode in bright conditions and awakens in darkness or tunnels, ensuring you're always protected without draining battery unnecessarily.

With up to 36 hours of runtime in single flash mode, the Zyntrisa Bike Tail Light eliminates constant charging anxiety. The 400mAh battery supports multiple rides per week on a single charge, while convenient Type-C port enables fast charging anywhere.

The Zyntrisa Bike Tail Light features vibration-activated auto-start that turns on automatically when you begin riding. After parking for two minutes, it intelligently enters sleep mode to conserve battery while double-click switches between automatic and manual modes.


We understand the value of your time. That’s why our team is trained to respond promptly and efficiently, ensuring your queries and issues are addressed without unnecessary delays.
Frequently Asked Questions
The magnetic mounting system is absolutely brilliant! I was skeptical at first, but the Zyntrisa Bike Tail Light stays perfectly secure even on my mountain bike trails. The automatic brake sensing has already saved me from potential accidents when cars were following too closely during my evening commutes.

After trying multiple tail lights that either fell off or had complicated mounting systems, the Zyntrisa Bike Tail Light is a game-changer. The magnetic connection is incredibly strong yet removes instantly for charging. The 36-hour battery life means I rarely worry about it dying mid-ride.

I love how the Zyntrisa Bike Tail Light automatically turns on when I start riding and goes to sleep when parked. The seven different lighting modes give me options for different conditions, and the brake sensing feature provides extra safety I didn't know I needed until I had it.
