

⛓️ Lock in your freedom—security that rides with you!
The Topcrown Bike Chain Lock offers a robust 3.2-foot, 6mm thick alloy steel chain paired with a 5-digit combination lock featuring over 100,000 possible codes. Designed for heavy-duty anti-theft protection, it includes a weatherproof fabric and PE cover to withstand the elements. Easy to reset and keyless, this lock secures bikes, e-bikes, scooters, motorcycles, and more, making it a versatile and reliable choice for urban commuters and outdoor enthusiasts alike.










| ASIN | B0FNWF7624 |
| Batteries Required? | No |
| Best Sellers Rank | #5,501 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #7 in Bike Chain Locks |
| Brand | Topcrown |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (319) |
| 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 |
R**N
Durable; glad I bought
Very sturdy Good length Easy to set for your lock code. Would recommend
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
T**C
Excellent
Easy installation. Great quality and works perfectly.
A**I
Does the job, great 5 digital combo.
This bike lock is heavy duty! Easily to reprogram to my own 5 digital code (took about 30 seconds). I like that the combo is 5 numbers, allowing me to use a memorable zip code (not 90210). The chain has a nice weight to it giving me piece of mind.
N**.
Excellent quality!!!
Excellent quality. It was very easy to set code as it had the instructions. Definitely reasonably priced. Very durable material.
J**R
Great Chain
My only gripe is that it’s a little short. Otherwise, great chain.
G**T
Very nice lock
Awesome sturdy lock
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.
Trustpilot
1 month ago
1 month ago