# Reactive Bike Brake Lights The Sigma Brakelight Illuminates When You're About to Brake By Rahul Kalvapalle | Published 2015-08-11 | Tech Source: Trend Hunter, https://www.trendhunter.com/trends/brakelight References: [gizmag](http://www.gizmag.com/sigma-bicycle-brake-light/38828/) & [sigmasportstore](http://www.sigmasportstore.com/Sigma-Sport-Brake-Light-p/brakelight.htm) The Sigma Brakelight is a device that illuminates when the bike's brake calipers close together, alerting nearby motorists that your bike is about to brake. The light is water-resistant and is attached using an Allen key to the rear brake cable between the two brake calipers. It is compatible with any cable-activated mechanical rear brake. When the calipers are squeezed together while braking, they provoke a mechanism to complete a circuit and illuminate a [red LED light](https://www.trendhunter.com/trends/scoutlite-blinko). The Brakelight weighs only 7 grams and it is powered by a fully replaceable 1025 button cell battery that is good for as many as 100,000 braking instances. It is available in a range of five colors, and is priced at a very reasonable $9.99, making it an exceedingly good option for the [cyclist on a budget](https://www.trendhunter.com/trends/cyclist-safety1). ## Trend Insights (Trend Hunter) - Score: 6.2/10 - Popularity: 90% | Activity: 88% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America, Europe ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Tech](https://www.trendhunter.com/tech) > [Gadgets](https://www.trendhunter.com/gadgets) ## Key Themes ### What's Driving This Trend - **Reactive Brake Lights:** The Sigma Brakelight showcases the trend of reactive brake lights that illuminate when the bike's brake calipers close together, enhancing safety on the road. - **Lightweight Bike Accessories:** The Brakelight's weight of only 7 grams represents a trend towards lightweight bike accessories that provide useful functionalities without adding significant bulk. - **Affordable Cycling Gadgets:** Priced at $9.99, the Brakelight reflects the trend of affordable cycling gadgets that offer enhanced safety features to cyclists on a budget. ### Who This Affects Most - **Bicycle Accessories:** The reactive brake lights trend presents an opportunity for bicycle accessory manufacturers to create innovative and reliable braking systems. - **Consumer Electronics:** The market for lightweight and affordable bike gadgets, such as the Brakelight, has the potential to attract consumer electronics companies looking to expand their product offerings. - **Sporting Goods Retail:** Sporting goods retailers can tap into the demand for affordable safety gadgets by stocking the Brakelight and other similar cycling accessories. ## Related on Trend Hunter - [Mountain Bike Brake Monitors](https://www.trendhunter.com/trends/brake-monitor.md) - [Tech-Enhanced Safety Bike Lights](https://www.trendhunter.com/trends/rear-bike-light.md) - [Synced Bike Light Systems](https://www.trendhunter.com/trends/bike-light-system.md) - [Omnidirectional Bike Lights](https://www.trendhunter.com/trends/vis-lightpool-taillight.md) - [Tech-Visible Bike Reflectors](https://www.trendhunter.com/trends/radian-wingman.md) - [Space-Saving Cyclist Lights](https://www.trendhunter.com/trends/rydesafe-headtube-bike-light.md) - [Vehicle-Tracking Cyclist Radar Devices](https://www.trendhunter.com/trends/garmin-varia-rearvue-820.md) - [Rearview Cyclist Camera Lights](https://www.trendhunter.com/trends/garmin-varia-rct715.md) - [Color-Changing Clipless Pedals](https://www.trendhunter.com/trends/clipless-pedals.md)