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2. Bottom bracket - Wikipedia

   en.wikipedia.org/wiki/Bottom_bracket

   Bearing cups are pressed into the bottom bracket shell. The crank holds the cones, facing in; adjustment is made via the left-threaded non-drive side cone. One-piece cranks are easily maintained and reliable, but heavy. They are found on BMX bikes as well as children's bicycles and low-end road and mountain bikes.

3. List of bicycle parts - Wikipedia

   en.wikipedia.org/wiki/List_of_bicycle_parts

   Cone: holds bearings in place, pressed against the cup; Cotter: pin for attaching cottered cranks; Coupler: to connect tubing together; Crankset or chainset: composed of cranks and at least one chainring; Cup: receives ball bearings which roll along its inner surface; integrated on most conventional hubs or can be pressed into older bottom ...

4. Bicycle tools - Wikipedia

   en.wikipedia.org/wiki/Bicycle_tools

   Bottom bracket wrench for newer bottom bracket styles Crank extractor. A chain tool or chain splitter is used to 'break' a chain, in order to remove it from a bike or remove links, or to put a chain back together. A crank extractor is used to pull the crank off the bottom bracket spindle. A pedal wrench removes the pedals from the bicycle. It ...

5. Crankset - Wikipedia

   en.wikipedia.org/wiki/Crankset

   The cranks are pressed into place and prevented from squirming off via fretting by a bolt or nut installed into or onto the bottom bracket spindle. [8] The head of the bolt or the nut sits inside a counterbore that is also threaded to accept a crank puller tool. The counterbore is often covered with a dust cover.

6. Peanut butter wrench - Wikipedia

   en.wikipedia.org/wiki/Peanut_butter_wrench

   Campagnolo crank spanner, used to tighten or loosen the bolt (15 mm) which holds the crank to the bottom bracket spindle. Length is 17 cm. A peanut butter wrench, also known as a crank bolt spanner or a crank spanner, is a single-ended box wrench or ring spanner used in cycling to tighten older 14 mm and 15 mm crank bolts, or the wheel nuts (track nuts) on hubs with solid axles commonly found ...

7. Crankpin - Wikipedia

   en.wikipedia.org/wiki/Crankpin

   A crankpin or crank pin, also known as a rod bearing journal, [1] is a mechanical device in an engine which connects the crankshaft to the connecting rod for each cylinder. It has a cylindrical surface, to allow the crankpin to rotate relative to the "big end" of the connecting rod.

8. Detangler - Wikipedia

   en.wikipedia.org/wiki/Detangler

   The detangler, Gyro or rotor [1] is an invention for the freestyle BMX bicycle, allowing the handlebars to turn a complete 360° rotation without the brake cables getting tangled up. [2] A detangler is usually only used for the rear brake cable.

9. Crankshaft - Wikipedia

   en.wikipedia.org/wiki/Crankshaft

   Crankshaft, pistons and connecting rods for a typical internal combustion engine Marine engine crankshafts from 1942. The crankshaft is located within the engine block and held in place via main bearings which allow the crankshaft to rotate within the block. [3] The up-down motion of each piston is transferred to the crankshaft via connecting ...