ABUS or Kryptonite: Which lock should I choose for my bike? - Santafixie UK Blog
Kryptonite KryptoFlex 1218, Abus 1650, or Abus Numerino 5510 combination cable - Small Planet eBikes
Amazon.com: Kryptonite New York LS Bike U-Lock, Heavy Duty Anti-Theft Bicycle U Lock, 16mm Long Shackle with Keys, Ultimate Security Lock for Bicycles E-Bikes Scooters : Sports & Outdoors