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2. Bicycle brake - Wikipedia

   en.wikipedia.org/wiki/Bicycle_brake

   A hydraulic front disc brake. The disc is held by a six-bolt mount. The caliper is held attached to an IS fork mount via PM adapter. A disc brake consists of a metal disc, or "rotor", attached to the wheel hub that rotates with the wheel. Calipers are attached to the frame or fork along with pads that squeeze the rotors for braking.

3. Bicycle drivetrain systems - Wikipedia

   en.wikipedia.org/wiki/Bicycle_drivetrain_systems

   Major changes in bicycle form have often been initiated or accompanied by advances in drivetrain systems. Several early drivetrains used straight-cut gears that meshed directly with each other outside of the hub. [1] [2] Some bicycles have used a double-sided rear wheel, with different-sized sprockets on each side. To change gears, the rider ...

4. Cogset - Wikipedia

   en.wikipedia.org/wiki/Cogset

   A freewheel and freewheel hub A freehub (above) for use with a cassette and a threaded hub (below) for use with a freewheel. A freewheel (also known as a block) consists of either a single sprocket or a set of sprockets mounted on a body which contains an internal ratcheting mechanism and mounts on a threaded hub. Threaded rear hubs were ...

5. Hydraulic brake - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_brake

   US 2746575 Disc brakes for road and other vehicles. Kinchin 1956-05-22; US 2591793 Device for adjusting the return travel of fluid actuated means. Dubois 1952-04-08; US 2544849 Hydraulic brake automatic adjuster. Martin 1951-03-13; US 2485032 Brake apparatus. Bryant 1949-10-08; US 2466990 Single disk brake. Johnson Wade C, Trishman Harry A ...

6. Eccentric (mechanism) - Wikipedia

   en.wikipedia.org/wiki/Eccentric_(mechanism)

   Eccentric bottom bracket on a Burley tandem bicycle held in place with two set screws. The term is also used to refer to the device often used on tandem bicycles with timing chains, single-speed bicycles with a rear disc brake or an internal-geared hub, or any bicycle with vertical dropouts and no derailleur, to allow slight repositioning, fore and aft, of a bottom bracket to properly tension ...

7. Sturmey-Archer - Wikipedia

   en.wikipedia.org/wiki/Sturmey-Archer

   All Sturmey-Archer gear hubs use epicyclic (planetary) geartrains of varying complexity. The AW is the simplest, using one set of planetary gears with four planets. The AM uses three compound planets with differently sized cogs machined from a common shaft to engage the gear ring and sun gear separately, while the close-ratio three-speeds, and hubs with four or more speeds, use multiple ...