1. Kryptonite New York Standard Bicycle U-Lock with Transit FlexFrame Bracket (4-Inch x 8-Inch) (Click Link to Check Price on Amazon)
Editor's Rating : 9.9 out of 10
16mm hardened MAX-Performance steel shackle resists bolt cutters and leverage attacksHigher security disc-style cylinder

2. Bike locks Double Safe U Lock- 16mm Heavy Duty Bike Lock with U Lock Shackle and Mounting Bracket + 1200mm Steel Flex Cable (Click Link to Check Price on Amazon)
Editor's Rating : 9 out of 10
16mm Heavy Duty Bike Lock with U Lock Shackle and Mounting Bracket + 1200mm Steel Flex Cable resists cutting and leverage attacksHigh security foot design for serious protection and great value

3. COMBINATION BIKE CABLE LOCK WITH LED LIGHT 1/2" Self Coiling Cable with Soft Plastic Coating. (Click Link to Check Price on Amazon)
Editor's Rating : 9.8 out of 10
STRONG ~ 1/2" (12mm) Diameter Steel Braided-Cable - 4.5 Ft Long. Plus It's Scratch ResistantCOMBINATION LOCK ~ Easy to Change Code System

4. Bike Lock Beach Locks Chair Bag Lock Combination Cable Lock Anti-theft Resettable 3 Digit PIN Device Buckle Lock Secure for Beach Bags Travel Luggage Sports Gear Belongings Bike Helmet Lock (Black) (Click Link to Check Price on Amazon)
Editor's Rating : 9 out of 10
HIGH QUALITY MATERAIL: Made of Zinc alloy, sturdy and durable, rust-resistant, good performance of security, flexible steel cable is full 128cmRESETTABLE: Very simple and easy to reset your own personalized number, just press and hold the button with pen tip and reset the password

5. Heavy Duty Black Combination Lock Cable | Best Security PIN Locking Chain Secures Your Motocycle Gear, Bike Helmet, Jacket, Cabinets & Luggage | Waterproof Self-Coiling Masterlock With Rubber Sleeve (Click Link to Check Price on Amazon)
Editor's Rating : 9.7 out of 10
SECURE YOUR BIKE GEAR: This PIN lock cable is portable and lightweight but strong and secure at the same time to make sure you don't get your bicycle or motorcycle helmet stolen! You can also use it to secure your jackets, to immobilize your bike's brake disk and lock the bike's saddle in place!NOT JUST FOR YOUR BIKE: The Bristol Designs combination lock can also be used to secure anything from bags, suitcases & luggage to baby strollers, gates, ladders & garden furniture! Plus, you can carry it with you in your pocket anywhere you go!