The 770A unlocks automatically via the Bluetooth on your phone, and sounds an alarm if disturbed by a third party. Battery life is claimed to be about three months and it recharges via Micro USB.
Abus has also added to its range of helmets. The new AirBreaker is designed to offer aero helmet performance without compromising on ventilation and weight, while the 2019 Scraper is a skate-style urban helmet with some clever features.
Matthew is an expert on bike tech and a lover of practical, beautifully-engineered things. Originally a roadie, he dabbles in all disciplines and has tested a huge variety of bikes and gear over the years.