You guys—I can't get over this one. TMD built a bike lock out of materials that normally secure bank ATMs and then priced it at $280, which is like buying an armored vault for a lock the company itself admits costs about $60 at Walmart. The tech inside actually makes sense: you get hardened steel in the core wrapped in Dyneema and Kevlar fibers so it stays tough but flexible enough to wrap around your seat post without rattling your frame on every bump — which is genuinely smart engineering for something that's constantly subjected to vibration. Then they added a Bluetooth proximity sensor, motion alarms that scream when someone touches it, keyless app unlocks, sharing access with friends and family through the app, and full ART-2 certification so you can actually claim theft insurance after someone cuts your chain — which is probably one of those rare lock features worth paying extra for.

I love the design but $283 still feels insane even on a high-end ebike, because while it survives rain, dust, extreme cold and shock (making it great for urban parking all year) you have to ask whether this problem actually needs solving at such a premium. You're essentially paying a huge markup for convenience features like keyless entry and theft protection that are genuinely good but not fundamentally different from what works — the Verge calls it out well, and I agree with their measured take. If you want to read Thomas Ricker's full review with photos before making your own call, check it below:

Source: https://www.theverge.com/tech/957603/tmd-smart-keyless-bike-lock-review