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🔐 Lock in your peace of mind—security that’s as smart as your ride.
The Topcrown Bike Chain Lock combines a 3.2-foot, 6mm thick alloy steel chain with a high-security 5-digit combination lock offering over 100,000 code possibilities. Featuring a zinc alloy core resistant to cutting and sawing, plus a weatherproof cover, this resettable, keyless lock is designed for versatile, durable protection of bikes, scooters, and motorcycles.
| ASIN | B0FNWF7624 |
| Batteries Required? | No |
| Best Sellers Rank | #2,387 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5 in Bike Chain Locks |
| Brand | Topcrown |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (338) |
| Date First Available | August 27, 2025 |
| Finish | Painted |
| Finish Type | Painted |
| Included Components | Bike Chain Lock * 1 |
| Item Package Quantity | 1 |
| Item Weight | 1.5 pounds |
| Item dimensions L x W x H | 6.1 x 5.5 x 1.5 inches |
| Item model number | L250827 |
| Lock Type | Combination Lock |
| Manufacturer | Topcrown |
| Material | Alloy Steel, Nylon, Zinc |
| Model Name | L250827 |
| Number of Pieces | 1 |
| Part Number | L250827 |
| Product Dimensions | 6.1 x 5.5 x 1.5 inches |
| Recommended Uses For Product | Motorcycle, Door, Bicycle |
| Shape | Round |
| Size | Basic - 3.2Ft long, 6 mm thick |
| Special Feature | Anti-theft, Passcode Unlock, Portable, Resettable |
| Special Features | Anti-theft, Passcode Unlock, Portable, Resettable |
| Style | 3.2 ft long, 6 mm thick |
E**S
Great Lock
Great bike lock, keeps everything secure! Great value and security for the price, sturdy and portable.
R**N
Durable; glad I bought
Very sturdy Good length Easy to set for your lock code. Would recommend
A**R
JRN TEXAS
Good quality/easy to set the combination/perfect color for bike.
T**C
Excellent
Easy installation. Great quality and works perfectly.
M**E
Great for my e-bike
Love the lock. Just make sure you follow the directions when you are setting your combination. I was off with one number it took a bit to figure it out
R**M
Todo bien y se siente fuerte y durable muy comodo ya que trae un forro protector y no daña o ralla la pintura de tu marco
H**5
Matches my Mongoose Excursion
I was torn between the pink one and the black one, but ultimately decided on the pink one and it looks cute with my Mongoose Excursion bike. Pardon the crappy basement lighting, I live in an apartment complex, and my bike is in my basement because I don’t want to expose it to the elements if I were to have it on my balcony. Plus, my balcony stairs are too steep for my liking compared to the interior stairs. I was able to change my bike lock code just fine. I like that the pink fabric is decently thick and not thin, which protects the beautiful design of my bike.
C**E
works well
Nice, secure bike lock. The dials are kind of easily scuffed or scratched but not a huge deal to me. Works well, would buy again
Trustpilot
1 week ago
1 week ago