






🔐 Lock in peace of mind with the ultimate anti-theft upgrade!
The Topcrown Bike Chain Lock Upgrade features a heavy-duty 6mm alloy steel chain and a 5-digit metal dial combination lock offering over 100,000 possible codes. At 3.2 feet long and weighing 1.57 pounds, it provides robust, versatile security for bikes, e-scooters, and motorcycles. Its resettable, keyless design and weather-resistant construction make it a reliable choice for professionals who demand both convenience and top-tier protection.




| Brand | Topcrown |
| Special Feature | Anti-theft, Passcode Unlock, Portable, Resettable |
| Lock Type | Combination Lock |
| Item dimensions L x W x H | 6.1 x 5.5 x 1.6 inches |
| Material | Alloy Steel, Nylon, Zinc |
| Recommended Uses For Product | Security |
| Style | Upgrade Metal Digital Dials, 3.2 ft long |
| Color | Black |
| Number of Pieces | 1 |
| Finish Type | Painted |
| Included Components | Bike Chain Lock * 1 |
| Shape | Round |
| Item Weight | 1.57 Pounds |
| Model Name | L240923 |
| Manufacturer | Topcrown |
| Part Number | L240923 |
| Item Weight | 1.57 pounds |
| Product Dimensions | 6.1 x 5.5 x 1.6 inches |
| Item model number | L240923 |
| Size | Upgrade - 3.2Ft long, 6 mm thick |
| Finish | Painted |
| Item Package Quantity | 1 |
| Special Features | Anti-theft, Passcode Unlock, Portable, Resettable |
| Batteries Included? | No |
| Batteries Required? | No |
J**T
Easy to open & lock, good value
It's sturdy, easy to input code, color stands out & reasonably priced
K**N
Perfect bike lock!
This bike lock works awesome! Can wrap it around many solid items to keep your bicycle secure. Seems very durable and the combination works great!
M**Y
Great price and good quality build
Son uses it for his Electric Scooter- He loves it and it works great. 10$???!!! heck yea I would buy again.
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.
N**A
Perfect bike lock
Works great and my son loves the color! Love that it’s a longer code for security purposes.
C**H
Thick chain lock wrapped in a strap
The chain lock functionally does what is expected. I was able to chain up my thick ebike to a small post. Note this item was more bulky than I expected, it is a thick chain inside a strap and heavy if you aren't looking to ride light. Feels like a bolt cutter would get through this easily but most bike locks are just a deterrents.
R**S
Lock for your bike
Not too heavy of a lock, but it works and it’s great
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.
Trustpilot
3 weeks ago
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