Mainland China.
eBay
Bike Chain Cleaner Kit Including Chain Oil Lubricant,Bike Chain Degreaser,Chain Scrubber and Bicycle Cleaning Brush Tools
Aliexpress UK
Weatherproof Security Chain. - Equipped with 3 Keys. Heavy Duty 0.9m Anti-Theft Bike Lock. Includes 3 keys that can be pulled out only when locked to prevent forgetting. Upgraded lock cylinder with a sophisticated structure designed to prevent technical unlocking, ensuring your bike remains secure.
eBay
Bike Chain Repair Tools Set(3 IN 1) , Including Bike Chain Breaker,Bike Link Plier & Chain Checker,for 6/7/8/9/10/11S Chains
Aliexpress UK
1.5M Sold Secure Gold 10mm Thick Chain. Special Alloy Case Hardened Steel.
eBay
LEBYCLE MTB Road Bicycle Chain Wear Indicator Tool Bike Chain Checker Chain Links Tool Aluminum Alloy Bike Chain Repair Tool
Aliexpress UK
1 pcs x Bicycle Chain Lock. - Locks More Than Bikes: It’s not just a bike lock, it can lock all sorts of things! - With Keys. Condition: Used. Samsung Galaxy s10 128gb. More info. Condition: Refurbished.
eBay
Bike Chain Cleaner Kit Including Chain Oil Lubricant,Bike Chain Degreaser,Chain Scrubber and Bicycle Cleaning Brush Tools
Aliexpress UK
I believe this is a motorbike security chain (the kind used to wrap through a wheel and onto something) but we bought it to secure bicycles to a motorhome bike rack. Only used for that one trip. Comes with three keys. Length is 88cm and each link is nearly 3 inches (see image). As I said, used only once and has sat in a box since. Only visible sign of use is slight weathering of the brand name on the exterior sheath. Note this is heavy duty and weighs a fair bit for its length. Any questions, just ask.
eBay
Bike Chain Guide Bicycle Chain Stabilizer Supplies for Mountain Bikes Sturdy Bash Guard Accessories Bike Chain Protector
Aliexpress UK
1.8M Heavy duty Chain & Padlock. Secure your belongings whether its be your bike, motorbike, scooter, or anything else that can be secured with this heavy-duty chain. Triple heat-treated boron manganese with excellent chain strength & Steel padlock with 3 keys will ensure your property stays secure and safe.
eBay
Bicycle Chain Cutter Bike Chain Pin Remover Bike Link Breaker Splitter Cycling Chains Extractor MTB Cycle Repair Tool Accessory
Aliexpress UK
This 900mm Sleeved High Security Chain 656609 is an ideal addition to anyone's tools , whether it be for the garden , garage or DIY. Sleeved High Security Chain. 900mm. Hardened steel with 10mm thick links with large internal link size (16mm x 50mm) for use with large shackles. Sleeved to reduce impact damage. Compatible with Silverline E-Type Armoured Padlock 633702. Warranty: LIFETIME. Silverline 656609. 5055058161307. .
eBay
SUMC SX11SL 11 Speed Bicycle Chain 116L With MissingLink 11V Mountainbike/Road Bike Diamond Chain Bicycle Part With Original box
Aliexpress UK
⚡Upgrade your bike security with our easy-to-install, 4-feet-long combination bike lock! ⚡Unlock endless possibilities with our multipurpose bike master lock. Not just for bikes, this cable lock proves handy for securing skateboards, grills, strollers, scooters, generators, and more, making it an essential tool for your active lifestyle.
eBay
100ml Bike Drivetrain Cleaner Bicycle Chain Cleaning Maintenance Liquid Degreaser Spray Bike Chain Cleaner Bicycle Degreaser
Aliexpress UK