Alarm Wire Ropelock JB-SL05 review

Lock with motion-sensitive alarm

BikeRadar score0.5/5

A great idea: put a motion-sensing circuit in a lock, and if it’s tampered with the alarm will go off and the thief will scarper. 

As we say, a great idea. But there are issues. First, the casing of the lock barrel is chromed plastic and it cracked when we dropped it. Plus, while the alarm is fairly loud, you can subdue the speaker by covering it with your hand. 

In action, our bolt croppers severed the wire-coated cable in 1.98 seconds. We then smashed the lock barrel onto the ground where it splintered… and went very silent. It’s a shame this idea has been wasted on such a cheaply built product. 

Warren Rossiter

Senior Technical Editor
Approaching two decades of testing bikes, Warren can be found on a daily basis riding and exploring the road and off roads of Wiltshire's Salisbury Plain in the UK. That's when he's not travelling the world to test the latest kit, components and bikes.
  • Age: 44
  • Height: 188cm / 6'2''
  • Weight: 92kg / 203lb
  • Waist: 86cm / 34in
  • Chest: 112cm / 44in
  • Discipline: Road
  • Preferred Terrain: Big, fast descents and rough surfaces like cobbles or strada bianca
  • Current Bikes: Decade Tripster ATR, Dedacciai Temarario, Cannondale Synapse, BMC Granfondo Disc Di2, Genesis Day One CX, Parlee Z Zero Custom, Storck Scenario Comp Custom, DMR Trailstar, Bianchi Pista, Cube SUV 29er e-bike
  • Dream Bike: Bianchi Oltre Disc, Bianchi Specialissima, Cannondale Slate, Buffalo Bike
  • Beer of Choice: Brew Dog Punk IPA
  • Location: Wiltshire, UK

Related Articles

Back to top