Best Mini U Lock In August 2025

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With the number of alternatives available on the market, getting the right one could sometimes be a difficult task.. That’s why our platform is dedicated to product testing and coming up with this list of top 10 Best Mini U Lock. Having done thorough research on this topic, we hope that our list will help you find the one you need!

To help you in your search, we have completed this list of the Best Mini U Lock.

Top Rated Best Mini U Lock Of 2025

Rank	Product Name	Score
1	Kryptonite Keeper Mini-6 12mm U-Lock Bicycle Lock with FlexFrame-U Bracket Buy Now	9.7 Buy Now
2	Kryptonite Evolution Mini-5 13mm U-Lock Bicycle Lock with FlexFrame-U Bracket Buy Now	9.5 Buy Now
3	Kryptonite Kryptolok Mini-7 12.7mm U-Lock Bicycle Lock with FlexFrame-U Bracket & KryptoFlex 410 Buy Now	9.1 Buy Now
4	Kryptonite Evolution Mini-7 Bicycle U-Lock w/ 4’ KryptoFlex Double Loop Cable Buy Now	8.8 Buy Now
5	Kryptonite Kryptolok Mini-7 12.7mm U-Lock Bicycle Lock with FlexFrame-U Bracket - Merlot Buy Now	8.6 Buy Now
6	OnGuard Bulldog Mini DT U-Lock with 4-Feet Cinch Loop Cable Buy Now	8.3 Buy Now
7	Kryptonite Messenger Mini+ Wheel Extender 11mm U-Lock Bicycle Lock Buy Now	8.1 Buy Now
8	ONGUARD Bulldog Mini U-Lock (Black, 3.55 x 5.52-Inch) Buy Now	7.8 Buy Now
9	TRIMAX MAX60 Black Short Shackle U-Lock with PVC Sleeve Buy Now	7.5 Buy Now
10	Kryptonite Mini Heavy Duty Bicycle U Lock Total Package w/ WheelNutz Buy Now	7.2 Buy Now

1. Kryptonite Keeper Mini-6 12mm U-Lock Bicycle Lock with FlexFrame-U Bracket

• 12mm hardened steel shackle resists hand tools, bolt cutters, and leverage attacks
• Key safe program, kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
• Interior locking dimensions, 3. 25" x 6"
• Lifetime
• Anti-theft protection offer, up to $500 reimbursement

2. Kryptonite Evolution Mini-5 13mm U-Lock Bicycle Lock with FlexFrame-U Bracket

• Lifetime
• Interior locking dimensions, 3. 25" x 5. 5"
• Key safe program, kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
• Anti-theft protection offer, up to $2, 500 reimbursement for 1 year included
• 13mm hardended max performance steel shackle resists hand tools, bolt cutters, and leverage attacks

3. Kryptonite Kryptolok Mini-7 12.7mm U-Lock Bicycle Lock with FlexFrame-U Bracket & KryptoFlex 410

• Interior locking dimensions, 3.25" x 7" cable length, 4"
• 12.7mm hardended performance steel shackle resists hand tools, bolt cutters, and leverage attacks, 10mm steel looped cable for additional security
• Lifetime warranty
• Key safe program, kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
• Anti-theft protection offer, up to $1,750 reimbursement

4. Kryptonite Evolution Mini-7 Bicycle U-Lock w/ 4’ KryptoFlex Double Loop Cable

• High security disc-style cylinder
• Rotating dustcoverprotects cylinder
• Center keyway defends against leverage attacks
• Includes 4 kryptoflex double loop cable for securing front wheel or accessories
• Includes4 kryptoflex double loop cablefor securing front wheel or accessories
• Protective vinyl coating

5. Kryptonite Kryptolok Mini-7 12.7mm U-Lock Bicycle Lock with FlexFrame-U Bracket - Merlot

• Anti-theft protection offer, up to $1, 750 reimbursement
• Key safe program, kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
• 12. 7mm hardended performance alloy steel shackle resists hand tools, bolt cutters, and leverage attacks
• Interior locking dimensions, 4" x 11. 5"
• Lifetime

6. OnGuard Bulldog Mini DT U-Lock with 4-Feet Cinch Loop Cable

• New z-cylinder is bump-proof and resists picking, pulling or drilling.
• U-locks
• Snap lock quick release multi-position mounting bracket. 5 laser cut keys 1 micro-light and 4 extra grip keys micro-light key projects a bright white beam.
• Security rating 65
• Bulldog mini with 4 foot fully coated, braided steel cable for greater locking versatility.

7. Kryptonite Messenger Mini+ Wheel Extender 11mm U-Lock Bicycle Lock

• Interior locking dimensions, 3.75" x 6.5" wheel extender, 3.25" x 3.75"
• Key safe program, kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
• Anti-theft protection offer, up to $2,500 reimbursement for 1 year included
• 11mm hardended max performance steel shackle resists hand tools, bolt cutters, and leverage attacks
• Lifetime warranty

8. ONGUARD Bulldog Mini U-Lock (Black, 3.55 x 5.52-Inch)

• U-locks
• Bulldog level protection in a compact design.
• New z-cylinder is bump-proof and resists picking, pulling or drilling.
• Security rating 63
• Snap lock quick release multi-position mounting bracket. 5 laser cut keys 1 micro-light and 4 extra grip keys micro-light key projects a bright white beam.

9. TRIMAX MAX60 Black Short Shackle U-Lock with PVC Sleeve

• Trimax corporation is the worlds leading lock manufacturer providing customers high quality products through innovative design

10. Kryptonite Mini Heavy Duty Bicycle U Lock Total Package w/ WheelNutz

• High secuirty disc-style cylinder
• Center keyway defends against leverage attacks
• Increased shackle dimensions allow for flexibility with lock-up
• Secure bike frame and rear wheel with mini
• Key safe program
• Secure front wheel with wheelnutz