JAPAN SPORTS Automatic Smart Bike Rear Light: Automatic brake light
Available Options
If you're a cyclist who values safety as much as the thrill of the ride, meet your new best friend: the ROCKBROS Automatic Smart Bike Rear Light. It's not just any light—it's like having a co-pilot that knows when you're hitting the brakes, thanks to its clever automatic brake light feature (yep, it senses vibrations to shine brighter when you slow down). Choose from five lighting modes because, let's face it, night rides and foggy mornings demand different vibes. And since nobody likes scrambling for batteries, it's USB rechargeable—plug it in, and you're good to go. Plus, its sleek design slips onto your seat post like it was made for it (because it was). Whether you're dodging potholes at dusk or just making sure you're seen, this light's got your back.
- Vibration sensor
- Five lighting modes
- USB rechargeable
- Seat post mount
- Automatic brake light
General specs
- Brand: JAPAN SPORTS
- Seller: Joom
- Power Source: USB rechargeable
- Mounting Type: Seat post
- Lighting Modes: 5
- First listed by seller: 7/11/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Automatic Smart Bike Rear Light Automatic brake light
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Bicycle Rear Light with Smart Brake Smart brake detection
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Smart Rear Bike Light Rechargeable LED
|
Smart Rear Bicycle Light Smart brake sensor
|
Smart Bicycle Rear Light Brake sensor
|
Automatic Smart Brake Rear Light Automatic brake light activation
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| Brand | JAPAN SPORTS | JAPAN SPORTS | TOMTOP JMS | Sturdy equipment | TOMTOP JMS | ROCKBROS |
| Model | ||||||
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| Price | $45.30 | $44.31 | $34.26 | $21.77 | $22.20 | $54.60 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 31, 2025 | September 4, 2025 | August 29, 2025 | August 20, 2025 | August 29, 2025 | August 26, 2025 |
| Power Source | USB rechargeable | Rechargeable | Rechargeable battery | USB rechargeable battery | ||
| Lighting Modes | 5 | 20 modes | Multiple modes | |||
| Waterproof Rating | IPX6 | Waterproof | IPX6 | |||
Automatic Smart Bike Rear Light
Reviews
Ananya V.
Kolkata
July 18, 2025
Before I got this light I was using an old one that was dim and had to be manually turned on which was a hassle especially in low light Now with this one it automatically adjusts and makes me feel much more visible on the road I ride my bike daily for errands and it has held up well in the few weeks I have used it The build is sturdy and the design is sleek blending in with my bike nicely Overall it is a good upgrade for safety and convenience though it has its quirks
- Pros: The light turns brighter when I slow down which is so helpful for safety and it fits perfectly on my bike without any fuss I like that it has different settings for various conditions and charging it is easy with a cable no need for batteries
- Cons: It seems fairly sensitive to vibrations sometimes it activates when I am just going over bumps not really braking and the modes are a bit confusing to switch between at first but I got used to it after a while