The CatEye Sync Kinetic Rear Light is a smart, high-visibility rear solution that reacts to your riding in real time. With a permanent kinetic mode that triggers a 50-lumen burst under braking or deceleration, it enhances visibility precisely when its needed most. Designed with CatEyes SYNC system in mind, it allows seamless multi-light synchronisation, system monitoring via app, and group ride-friendly modes; all in a compact, USB-rechargeable unit.

CatEye SYNC is an easier, quicker and safer lighting solution for all types of cyclists from commuters to enthusiast riders. This smart system allows multiple lights to be wirelessly controlled and monitored through a single touch, offering all-round, all-angle visibility, day or night.

Features

• Smart kinetic brake light functionality across all modes
• 5-LED system with large 30 Lm main LED
• Permanent 50 Lm kinetic burst during deceleration
• Customisable light modes via CatEye SYNC app
• Superior side-on visibility for junction safety
• One-touch system control via SYNC Core
• USB rechargeable
• Lightweight and compact with band mount
• Group Ride mode for low-pulse visibility without distraction

Now with a 5 year warranty!

ROAD SAFETY DATA

Based on research from Japan Institute for Traffic Accident Research and Data Analysis:

78% of fatal cycling accidents occur during daylight hours

Collisions at crossings are the most frequent, followed by rear-end and turning incidents

Sync System Advantages

Synchronised:

• One switch powers all synced lights
• Rear light flash patterns synchronise for improved road presence
• No remote needed
• Customisable:
• Configure up to 7 lights via the CatEye SYNC app
• Exclude unused modes from the front light
• Enable rear Kinetic mode synchronisation
• Communicative:
• Front light communicates SYNC system status via coloured indicators
• App shows battery levels for all paired lights
• Find Me mode helps identify which light needs charging

Specs

• LEDs: 5 total (1 x 30 Lm main, 4 x 5 Lm)
• Kinetic mode: 50 Lm burst active in all modes

Modes:

• Low: 4 Lm, 15 hrs
• Flashing: 30 Lm, 50 hrs
• Group Ride: 40 Lm, 15 hrs
• Rapid: 50 Lm, 20 hrs
• Daytime HyperFlash: 50 / 50 Lm, 30 hrs

Charging time: 2.5 hrs via USB 2.0

Weight: 43g (including band mount)