1. Bike Lock, Bukm Security Anti-theft Bicycle Chain Lock - No Keys Required - Open with Password, Resettable 5 Digits Bicycle Bike Motorcycle Manganese Steel Coil Combination Chain Lock (Black) (Click Link to Check Price on Amazon)
Editor's Rating : 8.9 out of 10
Well-built, heavy-duty, sturdy, attractive, ergo-friendly, easy-to-handle, perfect little bike lock. Ideal for bicycles, skateboards, sports equipment, gates & fences, grills & lawnmowers, tools, tool boxes & ladders.The overall length of the chain is about 36 inches, perfect for securing bicycle and compact enough to carry in a bicycle tote bag, and you can wrap it around the seat post.

2. Bike Lock Cable, OUTERDO Self Coiling Bicycle Cable Lock Combination Cable Locks, Electric Vehicle Anti-theft Cable Bike Lock ,3.2-Feet x 1/2 Inch Cycle Chain Lock (Click Link to Check Price on Amazon)
Editor's Rating : 9.6 out of 10
This 4-Digit bicycle combination lock is very Easy to Setting the Combination AND Install on the bike.There are 10,000 combinations you can set. The code is preset to 0000 and in order to change it you just unlock the cable, slide the side forward about 90 degrees, change the code to what you want it to be and then slide the side back to the regular position and the code is changed.

3. Bike Lock Cable, UShake 6-Feet Bike Cable Basic Self Coiling Resettable Combination Cable Bike Locks with Complimentary Mounting Bracket, 6 Feet x 1/2 Inch (Click Link to Check Price on Amazon)
Editor's Rating : 9.8 out of 10
EASY TO SET COMBINATION: 4-digit combination locking mechanisms for keyless convenience with a FREE mounting bracket for easy transportation. (The mounting bracket is suitable for bike's tubing or seat post diameter is 1" and don't over tighten the screws)RESSETTABLE: Easy to set your own personalized number combination.

4. Kryptonite Kryptolok Series 2 Standard Bicycle U-Lock with Transit FlexFrame Bracket (4-inch x 9-inch) with 4-Foot Flex Cable (Click Link to Check Price on Amazon)
Editor's Rating : 9.1 out of 10
13mm hardened Performance steel shackle resists cutting and leverage attacksHigh security Bent Foot(TM) design for serious protection and great value

5. OUTERDO Security Bicycle Chain Lock 4-Digit Combination Password Steel Cables Bike Lock 26 Inch (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
✔4 character password is very secure, because the possible combination: 100 thousand. The most secure and easy to use bicycle combination cable lock.✔Ideal for everyone and Ideal for bicycles, skateboards, sports equipment, gates & fences, grills & lawnmowers, tools, tool boxes & ladders.