Lezyne Z-Mark Super Bright Ai Alert StVZO Rear Light

The Lezyne Z-Mark Super Bright Ai Alert StVZO rear light is a LED bike light designed for road riders who want to be seen from behind. The Ai Alert system detects deceleration and automatically activates a highly visible signalling mode when you slow down, which is particularly useful in traffic. It is StVZO approved, complying with German lighting regulations, and comes with a Composite Matrix mount compatible with 50 mm and 80 mm mounting hole spacing.

It also works on e-bikes, as it accepts a power supply from 6 to 12 V and delivers 1.8 W, rising to 3.6 W in Ai Alert mode. The 130 cm power cable is included, and the IPX7 rating provides water protection. Stainless steel screws and a hex key are supplied. This model is available only in black.

Founded in 2007 in San Luis Obispo, California, by Micki Kozuschek, Lezyne is now based in Reno, Nevada. It makes pumps, lights, multi-tools and bags to accompany cyclists on their rides. In 2011, it began developing its own LED lights.