TMD’s keyless bike lock is a $280 solution to a $60 problem

I’ve seen tons of alleged “smart” motorcycle locks complete the years, but nary truthful acold could warrant the added cost. A newcomer that sewage its commencement securing ATMs for banks is trying to alteration that. There’s thing wholly unsocial astir the TMD Chain Lock, but the operation of materials, performance, and insurance-friendly ART-2 certification makes it worthy considering.

TMD’s first bicycle fastener combines a Bluetooth proximity sensor and mobility siren pinch a slender halfway of hardened alloy concatenation wrapped successful a soft and lightweight sleeve of precocious capacity Dyneema and Kevlar fibers. That makes this fastener tough, yet elastic capable to conveniently wrap astir your spot station erstwhile cycling. TMD besides designed the keyless fastener to beryllium shareable pinch friends and family, and tin of withstanding shock, rain, dust, and utmost temperatures. That makes it highly suited to metropolis bikes parked extracurricular and ridden each twelvemonth long.

I for illustration the TMD Chain Lock I’ve been testing, but spending €249 (about $283) connected thing that typically costs acold little is simply a large ask.

The chasm separating ATM information from motorcycle information isn’t arsenic wide arsenic it mightiness seem. TMD developed a centralized, keyless strategy for banks to authorize entree to its ATMs for service, replacing the beingness maestro keys that created a monolithic information consequence whenever they were mislaid aliases stolen. It’s this aforesaid keyless knowhow that TMD now brings to the Bluetooth motorcycle lock.

There are galore advantages to turning phones into integer keys, particularly successful bike-centric societies for illustration the Netherlands, which TMD calls home. For example, I could thrust to the train position and person an authorized friend prime the motorcycle up later. And the keyless convenience quickly adds up for those of america that usage our bikes to commute to work, prime up the kids from daycare and football, tally errands, and shop for groceries. In my location metropolis of Amsterdam, it’s not different to drawback my keys much than a twelve times a time to fastener and unlock my bike.

I tested the TMD Bike Lock successful the 110cm (about 3.5 feet) magnitude pinch an iPhone 15 Pro moving the latest type of iOS. Generally — I’d opportunity 19 retired of each 20 attempts — the TMD Chain Lock instantly recognized my approach, allowing maine to seamlessly unlock it pinch a push connected the lock’s only button. When I did person to wait, it took nary much than a 2nd for the fastener to flash blue, indicating the fastener had detected my adjacent telephone successful a pouch aliases bag. Pretty good, but that convenience comes pinch immoderate tradeoffs.

For example, my motorcycle remained wrong scope of my telephone erstwhile parked extracurricular a cafe, truthful anyone could person walked up and unlocked it. I had the aforesaid rumor erstwhile cooking successful my room pinch the motorcycle parked conscionable extracurricular the window, arsenic I usually do. In some cases, I either had to move the motorcycle aliases move disconnected my phone’s Bluetooth radio. And since my telephone is now my motorcycle key, if it’s stolen, my overmuch much costly e-bike is susceptible arsenic well.

TMD says its Chain Lock is “immune to accepted drilling and picking,” but each motorcycle locks tin beryllium defeated by a wished thief. The Chain Lock has earned an ART-2 certification issued by an independent Dutch statement that tests and certifies motorcycle locks connected a standard from 1 to five. Most Dutch security companies require ART-2 astatine a minimum to validate policies connected costly e-bikes and cargo bikes. It’s akin to thing for illustration a Sold Secure Silver aliases Gold standing successful the UK, a 2 Roues successful France, and VdS support successful Germany. (The US and Canada do not person a single, centralized, independent testing assemblage that dictates security requirements for bicycles.) Should your motorcycle beryllium stolen, you tin nutrient a integer log record for the security institution from wrong the TMD app arsenic charismatic impervious that your motorcycle was locked.

To deter theft, the fastener besides features an integrated mobility siren that tin beryllium equipped and disarmed successful the app aliases pinch a double property of the lock’s button. At 100dB it’s little shrill than I expected, but it does the occupation erstwhile it senses the fastener being jostled. It shuts disconnected automatically aft astir 10 seconds of inactivity.

The fastener is alternatively noisy successful day-to-day usage. Unlocking it is accompanied by a large reside that hits 75dB erstwhile measured astatine a region of 1 meter. I dislike that it draws attraction to maine and my costly e-bike. Just flash greenish and unlock — that’s much than enough. TMD tells maine that a early package update will fto you disable these sounds.

TMD claims the lock’s artillery will past up to 9 months connected a azygous charge. However, my trial portion has already dropped 16 percent aft a week of testing, suggesting a lifespan person to six aliases 7 weeks. But that’s apt because I shop my bikes wrong my location erstwhile not successful use, truthful the lock’s Bluetooth power is perpetually being lit up by my phone’s proximity.

To forestall h2o and particulate ingress and time off much room for the artillery and speaker, TMD says it opted for a shallow magnetic pin connector – not USB-C – to complaint the Chain Lock. That’s a shame because plentifulness of phones person USB-C ports and connection moreover amended IP68/69 protection against rainfall and debris. That intends you’ll request to person the lock’s proprietary cablegram connected you should you disregard the low-battery warnings and fto it die. It tin beryllium quickly recovered, however: I saw a wholly dormant (and locked) Chain Lock outpouring backmost to life aft conscionable 2 aliases 3 minutes of charging disconnected the USB-C larboard of an iPhone.

You tin still unlock the TMD Chain Lock should your telephone die. You conscionable person to pat successful your 4 digit “emergency code” connected the lock’s button. Choosing a codification for illustration 1324 would require 1 push, past 3 pushes, past 2, and 4. The ringing astir the fastener changes colors to visually punctual you for each caller number. The TMD app besides lets you stock the fastener pinch friends and family, who tin besides travel to your rescue pinch their ain phones.

For added bid of mind, it’s ever a bully thought to double-lock your bike, truthful astir municipality cyclists harvester a concatenation fastener pinch a ringing fastener that’s permanently mounted to the framework and prevents the rear instrumentality from spinning. TMD has already announced an “anti perspective grinder” U-Lock and GPS-equipped Ring Lock coming later this year. Having my telephone unlock some of my bike’s locks simultaneously would really up the convenience facet and amended warrant TMD’s pricing.

Right now, paying €249 erstwhile balanced analog motorcycle locks costs a 4th of that would beryllium foolish for astir people. The ART-2 certified ABUS 8900, for example, successful the aforesaid elastic 110cm length, costs astir €60 (about $68). If you tin spend the TMD Chain Lock and really dislike keys, aliases request a keyless fastener that tin beryllium shared digitally pinch others, past person astatine it. Otherwise, it won’t warrant its exorbitant price.

All photography by Thomas Ricker / The Verge