Description
Kryptonite Combo Bike U-Lock Price: $24.99
(as of Jul 23, 2025 21:38:37 UTC – Details)
The 12mm hardened steel, standard size Combination U-lock provides high security against theft. This combo u-lock includes an easy to use 4-digit resettable combination and no keys for you to lose! This is a standard size u-lock at 4″ x 8″ which is great for many lock-up scenarios. The Combination U-lock has optional $500 Anti-Theft Protection Offer (registration required) and includes the Kryptonite Combo Safe Program. Register your combination with us at and we’ll be able to help should you forget your combination.
DURABLE DESIGN: This Anti-Theft bike u lock features a 12mm hardened steel shackle that provides high security against theft. This combo u-lock includes an easy to use 4-digit resettable combination and no keys for you to lose
MULTI-FUNCTIONAL: This Kryptonite bike lock is ideal to secure your bicycles, sports equipment, gates and fences, tool boxes & ladders, grills & lawnmowers, skateboards, truck bed and more
PORTABLE SIZE: This is a standard size bicycle u lock which is great for many lock-up scenarios. Size interior locking dimensions are 4″ x 8″ and exterior locking dimensions are 6.5” x 9.5”
COMBO SAFE PROGRAM: Register your unique 4-digit combination code on our website and our customer service team will be able to help, should you forget your combination
ANTI-THEFT PROTECTION OFFER (ATPO): Up to $500 reimbursement upon registration. Kryptonite stands behind its products by providing an Anti-Theft Protection Offer on specific locks. Created by Kryptonite in 1978, the Anti-Theft Protection Offer is a program that reimburses registered customers for a specific monetary amount in the event their bicycle/motorcycle is stolen due to the opening or breaking of the lock by force
LIFETIME WARRANTY AND CUSTOMER SERVICE: Kryptonite is committed to providing our customers with high quality products, ensuring full satisfaction. If you are experiencing any problems with your product, please reach out to our Customer Experience team. We will work to solve your issue as quickly as possible. We provide our locks with a limited lifetime warranty so you can buy your lock with confidence.
Customers say
Customers praise the bike lock’s solid construction and find it easy to set up the combination, considering it worth the price. However, the functionality receives mixed reviews, with some saying it works well while others report it stops functioning. Moreover, the lock quality and weight get mixed feedback – while some find it unbreakable, others report it jamming, and while some find it not too heavy, others consider it heavy. Additionally, the combination capability and lock functionality receive negative feedback, with customers reporting issues with the opening button breaking and being unable to open the lock at all.
