Shenzhen puts the 25 km/h e-bike ceiling on the pavement — every speeder RFID catches is on a modded bike
TL;DR
Shenzhen's Luohu district rolls out RFID interval speed cameras for e-bikes at Caihong Bridge in July — 25 km/h is the national limit, and every speeder caught is riding a modded bike.
Shenzhen traffic police switched on an RFID interval-speed system for e-bikes at Caihong Bridge in Luohu district this July, the city's first automated speeding enforcement pilot for two-wheelers. The gear runs the length of the bridge, fully self-driving, and covers eight violation classes: lane intrusion, riding against traffic, speeding, running red lights, phone use, illegal passengers, no helmet, illegal modification. Lane intrusion draws an on-the-spot 50 yuan fine; the rest go through the traffic-safety statute.
The pilot points at a paradox: under the mandatory 2024 national standard GB 17761-2024, a factory-built e-bike is designed to top out at 25 km/h and its motor must cut power above that. A compliant bike physically cannot speed. Every ticket RFID writes is, by construction, a bike that has been modified around the standard. Shenzhen isn't running speed enforcement here so much as an illegal-modification dragnet on the road.
The standard bred a black market. Sixth Tone earlier documented a national aftermarket where technicians swap the motor controller to bypass the auto-cutoff — one part, one hour, and the top speed jumps north of 40 km/h. RFID enforcement shifts the compliance burden from factory checkpoint to random road audit, and the mod-shop supply chain now faces a probabilistic ticket rather than a one-time inspection.
"Traffic is heavy and fast on this bridge; e-bikes cutting into motor-vehicle lanes and mixing with cars raises accident risk," officer Li Shihao told local reporters. Caihong Bridge is a high-density mixed-traffic corridor. Since the pilot went live police report violation rates "markedly down," without publishing a number.
Shenzhen kicked off a broader e-bike enforcement campaign in January 2026 — the "three separations" push: pedestrians from bikes, bikes from cars, e-bikes from motor lanes — and this RFID pilot slots the speed line into that system. Fubao sub-district's automated enforcement wrote 8,575 tickets last year alone, a street-level yardstick for what full-city rollout could do.
Win the bet, and RFID canvasses every arterial and bridge within a year, e-bike accident rates fall, and the Pearl River Delta cities copy the setup. Lose it, and the mod-shop stack iterates the controller and adds plate-cover tricks — enforcement becomes a cat-and-mouse game that only catches careless riders.
via Southern Metropolis Daily / Sina Tech / MyDrivers / Sixth Tone
The pilot points at a paradox: under the mandatory 2024 national standard GB 17761-2024, a factory-built e-bike is designed to top out at 25 km/h and its motor must cut power above that. A compliant bike physically cannot speed. Every ticket RFID writes is, by construction, a bike that has been modified around the standard. Shenzhen isn't running speed enforcement here so much as an illegal-modification dragnet on the road.
The standard bred a black market. Sixth Tone earlier documented a national aftermarket where technicians swap the motor controller to bypass the auto-cutoff — one part, one hour, and the top speed jumps north of 40 km/h. RFID enforcement shifts the compliance burden from factory checkpoint to random road audit, and the mod-shop supply chain now faces a probabilistic ticket rather than a one-time inspection.
"Traffic is heavy and fast on this bridge; e-bikes cutting into motor-vehicle lanes and mixing with cars raises accident risk," officer Li Shihao told local reporters. Caihong Bridge is a high-density mixed-traffic corridor. Since the pilot went live police report violation rates "markedly down," without publishing a number.
Shenzhen kicked off a broader e-bike enforcement campaign in January 2026 — the "three separations" push: pedestrians from bikes, bikes from cars, e-bikes from motor lanes — and this RFID pilot slots the speed line into that system. Fubao sub-district's automated enforcement wrote 8,575 tickets last year alone, a street-level yardstick for what full-city rollout could do.
Win the bet, and RFID canvasses every arterial and bridge within a year, e-bike accident rates fall, and the Pearl River Delta cities copy the setup. Lose it, and the mod-shop stack iterates the controller and adds plate-cover tricks — enforcement becomes a cat-and-mouse game that only catches careless riders.
via Southern Metropolis Daily / Sina Tech / MyDrivers / Sixth Tone
