A saddle-mounted aluminium rear light that senses when you slow down and switches to a rapid 250-lumen brake flash to warn those behind. It sits under your saddle rails, out of the way of seat packs and dropper posts.

• Ai Alert braking: detects deceleration and switches to the 250-lumen Active Alert flash, then returns to your chosen mode. Pre-programmed and collects no rider data
• Saddle-mounted: sits under the saddle rails, clear of seat packs and dropper posts
• Seen from the side: Wide Angle Optics and 10 LEDs give up to 270° of visibility
• Seven modes: solid and flash options, including a highly disruptive Day Flash, with up to 60 hours in Femto mode
• Rugged build: fully CNC-machined aluminium, IPX7 waterproof, USB-C charging

• Max output: 250 lumens (Active Alert)
• Max run time: 60 hours (Femto)
• Modes: 7 solid and flash
• LEDs: 10
• Battery: 1100mAh
• Visibility: 270°
• Construction: CNC-machined aluminium
• Waterproofing: IPX7
• Charging: USB-C (cable not included)
• StVZO: not approved
• In the box: Saddle Ai Alert 250 rear light, saddle mount