Hiro 50
LED Bicycle Tail Light with Brake Light Function
More visibility. More safety. Day and night.
LED Bicycle Tail Light with Brake Light Function
More visibility. More safety. Day and night.

Brake light function
The integrated acceleration sensor automatically detects braking and activates the intelligent brake light function within fractions of a second.

Visibility
Safety starts with visibility. This is ensured by up to 500 m visibility to the rear, high lateral visibility for better perception and the particularly attention-grabbing brake light functions with integrated emergency brake light.

LINK function to front light
The HIRO 50 LINK version intelligently connects your rear light with compatible SIGMA LINK front lights. Both lights can be turned on and off together, while the battery level of the rear light is displayed directly via the front light.

USB-C
Thanks to the modern USB-C port, the bike rear light can be charged quickly and easily.

Intelligent brake light for more safety in road traffic
When braking, all three LEDs light up particularly brightly and significantly increase the attention of road users behind.
The integrated emergency brake light also reacts to severe delays with a pulsating warning signal. This means that critical braking maneuvers are detected earlier – especially in dense city traffic, during fast road bike rides or in poor visibility conditions.
Advantages of the brake light function:
⦁ Automatic activation when braking
⦁ Intelligent accelerometer
⦁ Pulsating emergency brake light
⦁ Better perception in road traffic
⦁ Increased safety day and night
HIRO 50

Slim. Easy. Striking. The compact and modern design integrates unobtrusively into modern bike setups while ensuring high visibility in traffic.
HIRO 50 LINK
Advantages of the LINK function:
- Connection with SIGMA LINK front lights
- Switching on and off together
- Battery level indicator
SIGMA RIDE app connectivity:
Pair the SIGMA RIDE app with the HIRO 50 LINK in seconds – simply via Bluetooth. Once connected, you can read the battery level, assign device names and install firmware updates.
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Long battery life
The integrated battery provides up to 11 hours of burn time, making it perfect for long rides, commutes and training sessions. The 3-stage battery indicator provides reliable information about the current battery level at all times.
Battery highlights:
- Easy charging process
- USB-C charging port
- Up to 11 hours of burn time
- fast charging time

FLEXIBLE MOUNTING for any bike setup
- The slim and lightweight housing integrates discreetly into modern bike setups and at the same time ensures high visibility in traffic.
- Tool-free installation is done within a few seconds and fits almost all common seat posts.
- An extended silicone strap is optionally available for aero seatposts.
- With IP44 splash protection, the HIRO 50 remains reliably ready for use even in rain and changeable weather.
- Whether it’s the commute, training or weekend tour – the rear light was developed for daily use.
PRODUCT HIGHLIGHTS OF THE SIGMA HIRO 50
- LED Bicycle Tail Light with Brake Light Function
- Integrated emergency brake light
- StVZO-approved
- up to 500 m visibility
- USB-C charging port
- up to 11 hours of battery life
- High lateral visibility
- intelligent brake light detection
- Compact design
- Tool-free assembly
- IP44 splash resistance
- SIGMA LINK Connectivity (HIRO 50 LINK)
THIS PRODUCT IS AVAILABLE AS:

HIRO 50

HIRO 50 LINK

AURA 120 + HIRO 50 LINK

AURA 170 HB + HIRO 50 LINK

SEATSTAY BRACKET
More flexibility. More visibility. With the new SEATSTAY BRACKET, you can flexibly mount your SIGMA rear light on the seat stays – ideal if accessories such as a bag are already attached to the seatpost or if you want to increase your visibility on the bike.
Tipp: With rear lights on both seat stays, you can ensure even better lateral visibility in road traffic.
Compatible with: HIRO 50, HIRO 50 LINK, NYTE 50, NYTE 50 LINK, BLAZE, BLAZE LINK, BLAZE FLASH
Aero-straps
Optimized for aero seatposts. For bikes with aero seatposts and larger girths, the extended silicone mount is optionally available. This means that the HIRO 50 / LINK fits securely, stylishly and reliably even on sporty bike setups.

Features & functions
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