Last updated at 09/06/2026 13:46:22
Kryptonite Keeper Standard Bike U-Lock, Heavy Duty Anti-Theft Bicycle U Lock Sold Secure Silver, 12mm Shackle with Mounting Bracket and Keys for Bike,
Free delivery
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Kryptonite Keeper Standard Colour Black
Next-day delivery $73.41
Kryptonite Keeper 12 U-Lock 4 x 11.5"
Free 30-day returns
Kryptonite Keeper 12 Std U-lock Black
Delivery $28.99
Kryptonite Keeper 12 Ls 4 X11.5 In W/Bkt (1T)
Delivery $24.99
KRYPTONITE KEEPER 12 STD W/BKT 10.2cm x 20.3cm (1T)
Delivery between Tue – Fri $5.95
Kryptonite Keeper 12 U-Lock - MEGA DEAL
Delivery between 10–14 Sept $9.95
Kryptonite Keeper 12 U-Lock - MEGA DEAL
Delivery between 10–18 Sept $9.95
Kryptonite Keeper Standard U-Lock 10.2cm x 20.3cm Black
Delivery between Tue – Fri $9.90
Kryptonite Keeper U Lock
originally posted on sprocketscycles.com
Substantial lock. I bought it because it is the lightest D lock I could find but the trade-off is that it’s often slightly more difficult to find a fixed object of small enough diameter to attach the bike to. The lower weight is more important to me though.
originally posted on aventon.com
I have not used it yet. I believed it was little too small to lock the bike to a bike locking rack. It wasn't worth for the price paid for it.
originally posted on walmart.com
Kryptonite bike locks are excellent quality, durable locks, and the best quality locks on the market. They are the only bike locks I use. I know because I had to leave my bike outside for 3 days in an area that was undesirable. When I returned to my bike the lock had been sawed on and a little bent out of the original shape but, I am happy to say it did not break and I have my bike. Thank you.
| Style | Standard |
| Length | 10 inches |
| Shape | U Shape |
| Number of Pieces | 1 |
| Outer Material | aluminum |
Kryptonite Keeper Standard Bike U-Lock, Heavy Duty Anti-Theft Bicycle U Lock Sold Secure Silver, 12mm Shackle with Mounting Bracket and Keys for Bike,
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Kryptonite Keeper Standard Colour Black
Next-day delivery $73.41
Kryptonite Keeper 12 U-Lock 4 x 11.5"
Free 30-day returns
Kryptonite Keeper 12 Std U-lock Black
Delivery $28.99
Kryptonite Keeper 12 Ls 4 X11.5 In W/Bkt (1T)
Delivery $24.99
Substantial lock. I bought it because it is the lightest D lock I could find but the trade-off is that it’s often slightly more difficult to find a fixed object of small enough diameter to attach the bike to. The lower weight is more important to me though.
I have not used it yet. I believed it was little too small to lock the bike to a bike locking rack. It wasn't worth for the price paid for it.
Kryptonite bike locks are excellent quality, durable locks, and the best quality locks on the market. They are the only bike locks I use. I know because I had to leave my bike outside for 3 days in an area that was undesirable. When I returned to my bike the lock had been sawed on and a little bent out of the original shape but, I am happy to say it did not break and I have my bike. Thank you.
Good strong lock. I like the quality and for a quick in and out of a store or restaurant it secures nicely. It would take a theif a lil while to break it
Great quality and seems sturdy. One thing to. It’s this is a much smaller lock than I realized. I didn’t pay enough attention to measurements and it isn’t big enough to secure both a wheel and frame of a bike easily.
I’ve been using Kryptonite locks for a long time and they’re reliable. I like the included bike mount so I don’t have to carry my lock in my backpack or come up with my own mounting solution.
Just today I went to see a movie and someone tried to steal my bike while I was doing so. The rubber coating on the lock was ripped to shreds when I got out but still had my bike and was able to safely ride home.
Good construction bike lock with newer style key. Good system for attaching to bike frame for ease of storage while commuting. Solid product from Kryptonite.
A nice 'U' Lock for my Wife's bike. I also have one for my Bike as well.
I love the style and quality of my Thousand helmet --- I just ordered the Keeper U Lock and it is a fantastic add. Keeps everything together on my bike and I can lock it up and walk away without fear of anything getting stolen.
| Style | Standard |
| Length | 10 inches |
| Shape | U Shape |
| Number of Pieces | 1 |
| Outer Material | aluminum |
Protect your bike with confidence using the Kryptonite Keeper Original U Lock with Bracket. This lock features a Bronze Sold Secure sturdy construction and a reliable bracket for convenient storage while riding. Sold Secure Bronze rated The Kryptonite Keeper 12 is a solid, tough U-lock for securing your bike in moderate crime areas. This bike lock will give you peace of mind when you're popping into shops or quickly leaving your bike for a while. The Keeper will take some pretty harsh treatment before being broken. A 12mm hardened steel shackle offers excellent resistance against both cutting and sawing type attacks. The length of time and the equipment needed to break through this lock makes a great deterrent for would-be thieves. As with all U-locks, the Kryptonite Keeper is not the lightest lock on the market. But remember, this added weight comes from a strengthened steel shackle and reinforced collar (over the keyway) - the thing that makes this lock such a deterrent.
Protect your bike with confidence using the Kryptonite Keeper Original U Lock with Bracket. This lock features a Bronze Sold Secure sturdy construction and a reliable bracket for convenient storage while riding. Sold Secure Bronze rated The Kryptonite Keeper 12 is a solid, tough U-lock for securing your bike in moderate crime areas. This bike lock will give you peace of mind when you're popping into shops or quickly leaving your bike for a while. The Keeper will take some pretty harsh treatment before being broken. A 12mm hardened steel shackle offers excellent resistance against both cutting and sawing type attacks. The length of time and the equipment needed to break through this lock makes a great deterrent for would-be thieves. As with all U-locks, the Kryptonite Keeper is not the lightest lock on the market. But remember, this added weight comes from a strengthened steel shackle and reinforced collar (over the keyway) - the thing that makes this lock such a deterrent.
There are no live offers for Kryptonite Keeper U-Lock Standard right now. The all-time low we recorded was $28.30 on 13 Mar 2026. Set a price alert to hear when it's back in stock.
Prices last updated 6 Sept 2026.
Kryptonite Keeper U-Lock Standard
Protect your bike with confidence using the Kryptonite Keeper Original U Lock with Bracket. This lock features a Bronze Sold Secure sturdy construction and a reliable bracket for convenient storage while riding. Sold Secure Bronze rated The Kryptonite Keeper 12 is a solid, tough U-lock for securing your bike in moderate crime areas. This bike lock will give you peace of mind when you're popping into shops or quickly leaving your bike for a while. The Keeper will take some pretty harsh treatment before being broken. A 12mm hardened steel shackle offers excellent resistance against both cutting and sawing type attacks. The length of time and the equipment needed to break through this lock makes a great deterrent for would-be thieves. As with all U-locks, the Kryptonite Keeper is not the lightest lock on the market. But remember, this added weight comes from a strengthened steel shackle and reinforced collar (over the keyway) - the thing that makes this lock such a deterrent.
Protect your bike with confidence using the Kryptonite Keeper Original U Lock with Bracket. This lock features a Bronze Sold Secure sturdy construction and a reliable bracket for convenient storage while riding. Sold Secure Bronze rated The Kryptonite Keeper 12 is a solid, tough U-lock for securing your bike in moderate crime areas. This bike lock will give you peace of mind when you're popping into shops or quickly leaving your bike for a while. The Keeper will take some pretty harsh treatment before being broken. A 12mm hardened steel shackle offers excellent resistance against both cutting and sawing type attacks. The length of time and the equipment needed to break through this lock makes a great deterrent for would-be thieves. As with all U-locks, the Kryptonite Keeper is not the lightest lock on the market. But remember, this added weight comes from a strengthened steel shackle and reinforced collar (over the keyway) - the thing that makes this lock such a deterrent.
