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🚴 bikespark g4r auto-sensing rear light – usb rechargeable (240hrs) – precise brake sensing – cargo rack compatible – 50-lumen brightness – large reflector – 50/80mm screw mount/easy release – made in taiwan logo

🚴 BikeSpark G4R Auto-Sensing Rear Light – USB Rechargeable (240HRs) – Precise Brake Sensing – Cargo Rack Compatible – 50-lumen Brightness – Large Reflector – 50/80mm Screw Mount/Easy Release – Made in Taiwan Review

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Excellent

Revainrating 5 out of 5  
Rating 
5.0
🚴‍♀️ Cycling, 🥋 Sports & Fitness

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img 1 attached to 🚴 BikeSpark G4R Auto-Sensing Rear Light – USB Rechargeable (240HRs) – Precise Brake Sensing – Cargo Rack Compatible – 50-lumen Brightness – Large Reflector – 50/80mm Screw Mount/Easy Release – Made in Taiwan
img 2 attached to 🚴 BikeSpark G4R Auto-Sensing Rear Light – USB Rechargeable (240HRs) – Precise Brake Sensing – Cargo Rack Compatible – 50-lumen Brightness – Large Reflector – 50/80mm Screw Mount/Easy Release – Made in Taiwan
img 3 attached to 🚴 BikeSpark G4R Auto-Sensing Rear Light – USB Rechargeable (240HRs) – Precise Brake Sensing – Cargo Rack Compatible – 50-lumen Brightness – Large Reflector – 50/80mm Screw Mount/Easy Release – Made in Taiwan
img 4 attached to 🚴 BikeSpark G4R Auto-Sensing Rear Light – USB Rechargeable (240HRs) – Precise Brake Sensing – Cargo Rack Compatible – 50-lumen Brightness – Large Reflector – 50/80mm Screw Mount/Easy Release – Made in Taiwan

Description of 🚴 BikeSpark G4R Auto-Sensing Rear Light – USB Rechargeable (240HRs) – Precise Brake Sensing – Cargo Rack Compatible – 50-lumen Brightness – Large Reflector – 50/80mm Screw Mount/Easy Release – Made in Taiwan

Upgrade Your Reflector to BKS-G4R Now! - BikeSpark’s Auto-Sensing Rear Lights detect bike deceleration with an innovative deceleration sensing algorithm, Vsenx (US Patent No.: 10427594 B2). Once deceleration is detected, BikeSpark increases the brightness to ultrabright for 2.5 seconds, alerting and improving the reaction time of the person in any vehicle traveling behind. Automatic ON/OFF - Press the Control Button to turn on the light and you are good to go. Never have to remember to turn off your rear light again! BikeSpark turns off automatically after 1 minute of inactivity, and turns on when motion is detected. The perfect balance of convenience, battery life and riding safety. Great Brightness meeting Regulatory Compliance - Super bright LEDs provide excellent long distance and 220 degree visibility, up to 50 lm with low power consumption. Besides, two constantly-on lighting modes meet ISO 6742 1/3/5, and Germany StVZO Regulations help you riding safely in the darkest nights. Highly Reflective Reflector Meeting Regulatory Compliance: BikeSpark BKS-G4R equips with the world-class vehicle reflector. The highly reflective reflector not only meets German and EU compliance but also provides up to 30% more than required reflective brightness. Made in Taiwan / Quick Mounting / Snap to Release / 4 Lighting Modes / Li-polymer Rechargeable / IPX6 Water Resistance / Low Battery Indicator / Upgrade Your Reflector to BKS-G4R Now!.

Reviews

Global ratings 3
  • 5
    3
  • 4
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  • 3
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  • 2
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  • 1
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Type of review

Revainrating 5 out of 5

Better than $$$

I have a similar device attached to my helmet that costs $150 and its algorithm isn't as good as this little bug! He says until you need it. Although designed for use on a bike, anyone can attach it to a motorcycle or scooter, even a belt loop! Cheap, bright, selectable mode, set and forget. Charging via USB. I want to put them on my car and my dog!

Pros
  • Sport
Cons
  • Something else

Revainrating 5 out of 5

Works great for sports

I was looking for a light that could be mounted directly on the trunk for my daily commute. It's very reliable and bright. I like the auto power off feature. I don't have to remember to turn it off when I go to work or home. I don't know about the claim that it should get lighter or anything like that as you slow down because there's no way of knowing when you'll get rid of it. I might need someone to ride behind me to see how it works. Battery life seems normal, I've been using it for a week…

Pros
  • Cycling
Cons
  • Doubtful purchase for the elderly

Revainrating 5 out of 5

Far exceeded my expectations!

An old man cleans his 50 year old bike to ride it again after a 30 year break. Yes, I don't need all those front/rear AA bulbs. Get something new. But what? Autonomous? No, it's too complicated. But you don't have to charge it before every (however short) ride! After some searching and thinking I bought this BikeSpark auto-sensing rear light. This is exactly what I have always needed, even when the bike was new! Installation was the hardest part. Many headlights (and another version of them)…

Pros
  • Sports and outdoor activities
Cons
  • Crumpled packaging