Chigee has announced the SR-1 millimeter-wave radar system, a motorcycle-specific rider-assistance device that brings car-grade radar safety to riders on almost any bike. Built around an automotive-grade 77GHz sensor, the SR-1 continuously monitors the area behind and beside the motorcycle, alerting riders to hidden vehicles, unsafe lane changes, risky overtakes and fast-closing traffic.
Rather than adapting a car system for two wheels, Chigee engineered the SR-1 specifically around how motorcycles move through traffic. It runs four independent warning algorithms at once: blind-spot detection, lane-change assist, active overtaking alert and rear-collision warning. Each is tuned to a distinct riding scenario, with adjustable sensitivity.
The 77GHz frequency delivers millimeter-level accuracy when measuring distance and relative speed, while filtering out interference from signs and other roadside signals. A 2Tx/4Rx antenna sweeps a 110° field behind the bike with a detection range of up to 70m, working through rain, fog, dust and darkness.
A high-brightness light built into the radar module flashes automatically when a vehicle closes dangerously fast from behind, alerting the approaching driver and turning a passive sensor into an active safety device.
The module mounts to the tail, indicators attach to the mirrors, and a single harness ties into the 12V circuit. The included indicators deliver core warnings with no display required, while pairing with Chigee AIO-5 and AIO-6 displays adds on-screen radar data and audible alerts. An optional CG BSD radar mirror kit integrates the indicators directly into the mirrors.
“We wanted to give every motorcycle a genuine extra sense, with hardware built to automotive standards,” said the Chigee team.
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