Hardened Bicycle Locks and U Locks

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China Main Port
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TT or LC
Min Order Qty:
300 Pieces pc
Supply Capability:
32000 Pieces per Month pc/month

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Product Description:

*hardened bicycle lock with good quality and low price.


*MOQ: 300pcs


*Product: U-Lock for motorcycles


*Model No.:320


*Lock cylinder: YUEMA racing lock core


*Lock body: Φ32mm alloy steel, chromed


*Shackle: Φ20mm steel, heat-treated ,white zinc plated


*Specifications: 223.5*245*32mm


*Packages: blister paper card,10 pcs/ctn




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Q:Is the electronic smart lock safe?
Lock is the need for regular lubrication maintenance, otherwise it will open difficult, rust, and even twist the key, or the internal lock block stuck open.
Q:What is the three-point lock
Three-point locking door lock, including fasteners, lock cylinder, lock shell and fasteners
Q:Germany KLC door lock quality is good
Ten years old brand, and sell things out of word of mouth are also good. Sold a lot of brand a lot of products, but also eliminated a lot of brands. Klc is what I've been selling. Often bought a few years ago for home decoration for the house to buy again.
Q:What is a smart lock? how to use?
Intelligent password lock makes full use of the 51 system microcontroller software and hardware resources, the introduction of intelligent analysis, improve the system reliability and security. Through the use of a model safe to install, by the user's welcome. In addition, the smart password lock in the software and hardware changes, can constitute an intelligent distributed monitoring network, to achieve a range of centralized monitoring and management, in the financial, insurance, military power and other areas of security has a wide range of security Application prospects.
Q:Hacker anti-theft door lock how
Three steps: 1. Locate the position of the lock screw hole. Unscrew the lock screw. 2. Slowly rotate the key, in a position, that is, fork in the lock cylinder slot, you can pull the entire lock cylinder from the lock body. 3. At this time, measure the size of the active cylinder. Common cylinder, that is, the diameter of the round head is 17mm, the width of the small head is 10mm, the height is 33mm. If your cylinder size is the same, then determine how long the length of L1 and L2 is. Put on the lock cylinder and then tighten the lock screw and then install the inside and outside the handle in the room handle with two screw eyes, on the screw tightened on the line.
Q:The key was stuck in the lock
To the keyhole irrigation point pencil gray more than open several times like, do not lock the oil in the keyhole, or not a few locks on the scrapped.
Q:Which locks are safer
Check the A and B by checking the key. If it is a single row of marbles, security door installation is likely to be A-level lock cylinder. If you feel unsafe, you can consider replacing the ultra-B-level cylinder, to improve the overall anti-theft security features.
Q:What is the meaning of the anti-theft door cylinder ABC level? Which level of lock is best?
Security door is divided into A, B, C, D four levels, the corresponding anti-theft time is 30 minutes, 15 minutes, 10 minutes, 6 minutes. (For example, 080615 refers to the thickness of the steel plate of the door panel is 0.8mm, the thickness of the plate is 0.6mm, the thickness of the door frame is 1.5mm, the thickness of the door plate is 1.5mm, the thickness of the door plate is 1.5mm ). Which Class A should require the use of B-class anti-theft locks, B, C, D can use A-level anti-theft locks.
Q:What brand of bike is locked
There are three types of bicycle lock. Four locks: the most expensive, anti-hydraulic shear is relatively strong, very few to sell. U-type lock: the price mid-range, anti-hydraulic shear good, easy to carry. Chain: the price is right, anti-hydraulic shear is a bit poor, can be locked with other cars or fixtures.
Q:The characteristics of various locks and advantages and disadvantages
Three lever handle lock         Three-pole handle lock in the home door lock type, commonly used in the room door lock decoration. Relative to the other door locks, the three-bar handle lock, the production process is relatively simple, the cost is relatively low, in our lock market, is the most common but also the most used a series of door locks, but, because of the three Rod handle lock, safety performance is not very good, generally only as a room lock and use. The main material to copper, iron, stainless steel and aluminum-based, handle more to aluminum-based, multi-purpose stainless steel shell, cylinder mostly copper-based.
We are specializing in making a series of mechanical locks for vehicles, safes and doors. Most of our products have obtained national patent certificates. Our products also have been recommended by the Ministry of Public Security as the security and protection products for many years. We welcome friends all over the world to visit us!

1. Manufacturer Overview

Location Guangdong,China (Mainland)
Year Established 2007
Annual Output Value
Main Markets North America 2%
South America 1%
Eastern Europe 1%
Southeast Asia 3%
Africa 5%
Mid East 5%
Eastern Asia 3%
Domestic Market 80%
Company Certifications ISO 9001:2008

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3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage 1% - 10%
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size: 10,000-30,000 square meters
No. of Production Lines
Contract Manufacturing OEM Service Offered Design Service Offered Buyer Label Offered
Product Price Range