How do you fix a rusty bike lock?

Clean the mechanism with WD-40 [Amazon]. Turn the lock so the key hole is facing upwards and then squirt the liquid into the cylinder until it streams out. This should displace any water, dirt and debris. For locks that are really gunked up, you may need to repeat this several times.Click to see full answer. Also, how do you get rust off a bike lock?Use some thing like PB Blaster to clean out the rust and once a month or so drip some lite oil ( like triflo ) into it and you should be fine . At work we have really good results pouring White Lightning Clean Ride into the keyhole. It’s Wax based, not Oil.Secondly, how do you get a key off a bike lock? If there’s nothing sticking out, you can try a thin bit of metal along the side of the key with the teeth. Or a couple sewing needles, or maybe a pair of thin tweezers. Also worth trying giving the lubricant a little bit of time, then bang the lock against something, trying to get the key to fall out. Similarly, what is the best bike lock? The Best Bike Lock Our pick. Kryptonite New-U Evolution Mini-7 w/ Double Loop Cable. The best bike lock. Upgrade pick. Kryptonite New York Fahgettaboudit Mini. A stronger lock. Also great. Kryptonite New York Fahgettaboudit Chain. Best chain for the money. How do you open a combination lock if you forgot the code?To open combination locks without a code, start by pulling up on the dial and turning it clockwise until you hear the lock click. Then, check what number you’re at, add 5 to that number, and write it down. Next, set the dial to that number and turn it counterclockwise until you hear it click again.