TMD Energy Ltd

TMD introduced the Chain Lock, a Bluetooth keyless bike lock combining a hardened steel chain wrapped in Dyneema/Kevlar, an integrated motion alarm and digital sharing via a mobile app. The lock carries ART-2 certification required by many insurers for e-bikes and offers convenience features like proximity unlocking and emergency code entry. Downsides include a high €249–€283 price, proprietary magnetic charging (no USB‑C), noisy operating tones and battery drain faster than claimed in real-world use. The product suits users who value keyless sharing and insurance-grade certification but is hard to justify versus much cheaper analog locks for most buyers. » More on theverge.com