Sigma RECO 81 Link rear light

With the RECO 81 LINK, you are optimally protected on every journey. The smart radar with integrated rear light recognises vehicles approaching you from behind and makes you visible from afar - by day and by night. Brake light and emergency brake light provide additional safety.

• The radar detection range is 140 metres and detects up to 8 vehicles.
• All bike computers with ANT+ radar profile are compatible with RECO 81 Link. Connection via BLE with the SIGMA RIDE app for updates and status display.
• Powerful rear light with 500 metre visibility and 6 light modes including peloton mode.
• LED brake light and emergency brake light function.
• Couple the RECO 81 LINK radar with the AURA 100 and control both devices at the touch of a button.
• Battery life in radar only mode up to 30 h.

Safety with vision

The RECO 81 LINK radar ensures that approaching vehicles do not overlook you: A bright warning light signals to drivers that they are approaching a cyclist. At the same time, if you are using a bike computer compatible with RECO 81, you will be warned yourself and can adjust your speed and position on the road accordingly.

Digital rear-view mirror

Connect your RECO 81 LINK to your GPS bike computer via ANT+ and keep an eye on the traffic behind you at all times. The system recognises up to eight approaching vehicles and shows them directly on your display. RECO 81 LINK Radar distinguishes between normally approaching objects and fast approaching vehicles.

Visual and audible alarms

Connect your RECO 81 LINK to your SIGMA ROX 12.1 or 11.1 EVO GPS bike computer and receive visual and acoustic alerts as soon as vehicles approach from behind - so you can react immediately. From spring 2026, SIGMA RIDE app users will also be able to benefit from the safety features of the RECO models. The RIDE app will then also offer the option of being alerted acoustically and visually to approaching vehicles. Until then, RECO 80 LINK and RECO 81 LINK can be connected to the RIDE app to display the status and carry out firmware updates.

TECHNICAL DATA:

RADAR functions

• Detection range: 140 m
• Number of vehicles/objects detected: up to 8
• Running time (light + radar): ≤ 15 h
• Running time (radar only): ≤ 30 h

Further specifications

• Dimensions (W × L × H): 98.6 × 19.7 × 39.5 mm
• Weight: 100 g (incl. holder)

Modes

• High: ≤ 15 h
• Peloton: ≤ 26 h
• Day Flash: ≤ 21 h
• Night Flash: ≤ 23 h
• ECO Flash: ≤ 27 h
• Radar only: ≤ 30 h

Protection class

• Water resistance: IP67

Connectivity

• ANT+
• Bluetooth Low Energy (BLE)
• App connection

Brake light function

• Automatic brake light (Emergency Brake Light)

Charging

• Charging time: approx. 3 hours
• USB-C charging function

Mounting

• Tool-free mounting

Operation & safety

• Switch-on protection: Activation by double-click
• Mode memory function: device starts in the last mode used

Visibility

• Visibility: up to 500 m

Further functions

• Link function (coupling of several devices possible)
• Battery indicator
• Compatible with the SIGMA RIDE app
• Firmware updates and status information via the app