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The EcoBike Heavy Duty Chain Bike Lock is the serious cyclist's answer to bike theft in Australia. A thick hardened steel chain wrapped in a tough nylon fabric sleeve, secured by a 5-digit resettable combination lock — no key to lose, no locksmith to call, 100,000 possible codes to keep thieves guessing. Stocked in Sydney and ready to ship Australia-wide within 24 hours.
Unlike thin cable bike locks that can be cut in seconds, the EcoBike chain bike lock uses a hardened steel chain core wrapped in a protective nylon fabric sleeve. The thick chain construction resists bolt cutters, hacksaws and angle grinder attacks far better than standard cable bike locks — making it one of the toughest and most heavy duty bike locks available in Australia for serious cyclists who cannot afford to lose their ride. Suitable as a heavy duty bike lock for road bikes, mountain bikes, electric bikes, commuter bikes and folding bikes across Sydney, Melbourne, Brisbane, Perth and Adelaide.

The 5-digit resettable combination lock gives you 100,000 possible code combinations — ten times more secure than a standard 4-digit combo bike lock with only 10,000 combinations. Set your own personalised code in seconds. No key to carry in your pocket, no key to forget at home, no key to lose at the cafe. Just remember your combination and your bike stays exactly where you locked it. The code lock design is significantly safer than traditional key locks where keys can be copied or stolen.

The hardened steel chain is fully wrapped in a thick black nylon fabric sleeve — protecting your bike frame and paintwork from scratches and scuffs every time you lock up. The sleeve also adds an extra layer of cut resistance and gives the chain a clean, professional look on any bike. The nylon fabric is weatherproof and holds up against rain, sun and salt air in Australian conditions year-round.
The chain is long enough to thread through your bike frame and rear wheel simultaneously and attach to a fixed object — the recommended technique for maximum bike security. Loop it around a bike rack, pole, fence post or signpost and your bike is secured at two points. One of the most versatile bike chain locks in Australia for everyday locking at train stations, shops, cafes, schools and workplaces.

Every EcoBike Heavy Duty Chain Bike Lock ships from our Sydney warehouse — dispatched within 24 hours of ordering. Free Australia-wide tracked shipping to Sydney, Melbourne, Brisbane, Perth, Adelaide and every suburb and regional area in between. Full 2-year Australian warranty on every lock. Local Australian support team available 7 days a week. Afterpay and Zip available at checkout — 4 interest-free fortnightly payments. One of the best value heavy duty bike locks in Australia with fast local dispatch.