Once this is removed, there will be exposed threads inside the crank arm, with the bottom bracket spindle visible inside.
They should come right out of the brackets once loose.
Be careful not to remove the piece entirely! It is extremely difficult to reinsert that piece into a chain. A good way to do this is to alternate between screwing the tool arm into the chain and removing it, checking to see if the chain has broken yet (you won’t be able to tell while the chain is in the tool). Go slowly.
For caliper brakes, unscrew the small bolt on each side of the caliper brake that is attached to the brake pad itself. {“smallUrl”:“https://www. wikihow. com/images/thumb/7/7f/Take-Apart-a-Track-Bicycle-Step-15Bullet1. jpg/v4-460px-Take-Apart-a-Track-Bicycle-Step-15Bullet1. jpg”,“bigUrl”:"/images/thumb/7/7f/Take-Apart-a-Track-Bicycle-Step-15Bullet1. jpg/aid462976-v4-728px-Take-Apart-a-Track-Bicycle-Step-15Bullet1. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">
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<br />\n</p></div>"} Once the brake pads are removed, unscrew the (smaller) screw on the pad/metal assembly itself, and slide the pad out of the metal piece it is attached to. {“smallUrl”:“https://www. wikihow. com/images/thumb/f/f9/Take-Apart-a-Track-Bicycle-Step-15Bullet2. jpg/v4-460px-Take-Apart-a-Track-Bicycle-Step-15Bullet2. jpg”,“bigUrl”:"/images/thumb/f/f9/Take-Apart-a-Track-Bicycle-Step-15Bullet2. jpg/aid462976-v4-728px-Take-Apart-a-Track-Bicycle-Step-15Bullet2. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">
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<br />\n</p></div>"} Replace the pad by sliding a fresh one in. This is a worthwhile and inexpensive repair for your bike, since brake pads are cheap and are your best friend on the road. {“smallUrl”:“https://www. wikihow. com/images/thumb/0/05/Take-Apart-a-Track-Bicycle-Step-15Bullet3. jpg/v4-460px-Take-Apart-a-Track-Bicycle-Step-15Bullet3. jpg”,“bigUrl”:"/images/thumb/0/05/Take-Apart-a-Track-Bicycle-Step-15Bullet3. jpg/aid462976-v4-728px-Take-Apart-a-Track-Bicycle-Step-15Bullet3. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">
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You can clean the ring by rubbing it with a paper towel in your hands, or with lube/cleaner. Be sure to re-grease this ring liberally; this is what rotates when you turn your handlebars to turn your bike. Ask your LBS (local bike store) for recommendations for bearing grease.
