Voted #1 Bike Lock 

in the USA

"Security and peace of mind should

 never be an inconvenience. "

  • Strong, sturdy construction

    Built with quality zinc alloy and ABS

    for high grade anti-theft protection.

  • Tailor-made locking system

    Specifically designed lock and key that

    protects you from lockpicks. 

  • Never leave home without it

    The foldable design allows for hassle-free storage

    and transport, keeping your bike safe wherever you go.

Voted #1 Bike Lock

 in the USA

"Security and peace of mind should never be an inconvenience. "

Sale Off
Bike Lock X1

West Biking Bike Lock 4.0 

(Rated 4.84/5 by 2490 customers)


Keeping your bike safe and secure when it’s out of sight is crucial, but carrying large, heavy locking systems everywhere you go is far from convenient. This bike lock has a compact design that allows you to take it with you and ensure peace of mind wherever you leave your bike. Constructed with quality zinc alloy and ABS, this is built to last and keep your bike protected. 

Since 2016, our bike lock has been used by 250,000+ happy customers in the United States and has continued to improve its product every year. 

Featured on:

Watch How the Bike Lock Works!

Benefits of our 

Bike Lock

Built to last

Quality construction

Don’t make it easy for thieves to steal your bike. Put your mind at ease with high-quality zinc alloy and ABS construction.   

Never leave home without it

Small, portable design

The bike lock has a compact design so it's easy to carry it with you wherever you go. 

Anti-drill keyhole

Specially designed lock and key

Prevent lockpicks with a specially designed anti-drill keyhole.

Tailor-made safety

Dual installation options

The foldable bicycle lock fits great and doesn’t wiggle at all. Either attach the locking mount to the bike frame or seat post, offering enhanced customization for your specific bike. 

Prevent damage to your bike

Anti-slip and anti-scratch rubber sleeve

The PP rubber sleeve protects your bike from scrapes and scratches during use – safety shouldn’t come at a price. 

Keep your keys where you need them

Three keys

With three keys provided, leave one at work, one at home, and one in your pocket, ensuring you’re never left searching.

Frequently Asked Question

What is included in my package? 

1 * West Biking 4.0 bike lock 

1 * bracket

1 * bag

2 * straps

3 * keys

2 * screws

1 * Installation Instructions


Item Size (Regular): 12 x 6 x 2cm / 4.7 x 2.3 x 0.7 inch

Willow nail material: 304 stainless steel

Connector: 65 Manganese Steel(Inner Layer)+PP(Outer Layer)

Length: Approximately  95cm (37inch)

Lock Weight: Approximately 490 g

Package Weight: About 700g

Features: Pocket size, convenient for use and storage

When will I receive my order? Fast Shipping!

Our shipping time is about 7-10 days. Shipping Worldwide.  

We ship your orders from various international warehouses (US, Canada, & Singapore). Our stock is spread out over multiple fulfillment centers for them to get to you faster. Due to the high demand during our anniversary sale, some shipments will be slightly delayed. Thank you for your understanding. 

Does it come with a warranty and money-back guarantee?

Yes, all our products come with a 2-year warranty and a 30 day money-back guarantee. We truly believe we present the best bike locks on the market, and we want to make sure we back that up with a risk-free ironclad 30-day guarantee. If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase. We have 24/7/365 Ticket and Email Support. Please contact us if you need assistance.


For Myself

 Bike Lock 4.0  x 1

50% OFF

Bike Lock X1

Now Only


(Rated 4.84/5 by 2490 customers)

  • 1 West Biking 4.0 Bike Lock Set 

  • Free Shipping Worldwide

  • 30 Day Money Back Guarantee

  • 2-Year Warranty

Sold: 2732



For My Family 

 Bike Lock 4.0 x 3

64% OFF

Bike Lock X3

Now Only


Just $43 USD Each!

(Rated 4.84/5 by 2490 customers)

  • West Biking 4.0 Bike Lock Set 

  • Free Shipping Worldwide

  • 30 Day Money Back Guarantee

  • 2-Year Warranty

Sold: 7840



For Myself & Friend

 Bike Lock 4.0 x 2

59% OFF

Bike Lock X2

Now Only


(Rated 4.84/5 by 2490 customers)

  • West Biking 4.0 Bike Lock Set 

  • Free Shipping Worldwide

  • 30 Day Money Back Guarantee

  • 2-Year Warranty

Sold: 4816



* Our Anniversary Sales will end soon. While Stocks Last ! Price Back to Original Very Soon ! *

What Our Customers Think?


(Rated 4.84/5 by 2490 customers)

"I am surprised, usually these locks costs somewhere around $80. Perfectly fits my needs. It is small and fits in my water bottle cage, came with extra keys. Really easy to wind up and lightweight. It fits anywhere and it attaches to your bike and doesn’t get in the way when riding. Definitely getting another one for my e-bike"

Adam J. 05/14/2022

" I left during the summer, and someone tried to steal my bike, but the lock withstood the cuts, so I bought another one for my brother. "

Jeff P. 11/02/2021

"I was looking for a lock that would be lighter than a bar lock but provide reasonable security. This one seems to fit the bill perfectly. It is not much bigger than a cigarette pack but the metal bars are decently thick, would probably require a very large bolt cutter or a grinder to get through."

Stephen V 01/27/2022

" Someone tried to steal my bike yesterday and the chain was all beat up. They tried to break it open but were unsuccessful thankfully. However they did enough damage that I decided to buy another one. Great buy and excellent price! "

Myke B. 09/05/2021

"This is the coolest, best bike lock ever. Smart design long enough to connect to bikes together. Has a plastic coating on metal doesn't scratch bikes. "

Greg H. 02/28/2022

"Compact lock, folds smoothly, doesn't rattle, feels well built and decent quality. Lighter weight / duty than some of the longer models that are heavy but similar length."

Carlos G. 05/03/2022