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2. Epicyclic gearing - Wikipedia

   en.wikipedia.org/wiki/Epicyclic_gearing

   Epicyclic gearing or planetary gearing is a gear system consisting of one or more outer, or planet, gears or pinions, revolving about a central sun gear or sun wheel. [4] [5] Typically, the planet gears are mounted on a movable arm or carrier, which itself may rotate relative to the sun gear.

3. Hub gear - Wikipedia

   en.wikipedia.org/wiki/Hub_gear

   Sturmey-Archer S3X. A hub gear, [1] internal-gear hub, [2] internally geared hub [3] or just gear hub [4] is a gear ratio changing system commonly used on bicycles that is implemented with planetary or epicyclic gears. The gears and lubricants are sealed within the shell of the hub gear, in contrast with derailleur gears where the gears and ...

4. List of bicycle parts - Wikipedia

   en.wikipedia.org/wiki/List_of_bicycle_parts

   Chainset: see Crankset. Chainstay: a pair of tubes on a bicycle frame that runs from the bottom bracket to the rear fork ends. Chain tensioner: a device to maintain proper chain tension. Chaintug: a device to aid in setting the proper chain tension. Cluster: a bicycle cogset, either a freewheel, or cassette.

5. Planet X Limited - Wikipedia

   en.wikipedia.org/wiki/Planet_X_Limited

   Planet X Bikes. Planet X is a bicycle company based in Rotherham, in the north of England. It was founded in 1988 by Dave Loughran [1] and, in 2020, became an employee-owned trust. [2] Planet X operates a number of brands including On-One components and Titus bikes. [1]

6. Holdsworth - Wikipedia

   en.wikipedia.org/wiki/Holdsworth

   The Holdsworth Brand was purchased by Planet X Bikes and at L'Eroica Britannia in 2015 a new Heritage range of Holdsworth bikes was launched. [3] developed by Jamie Burrow and Lorenzo Altissimo. In 2016 Holdsworth worked with master frame builder Mark Reilley and Reynolds to bring the Reynolds 753 tubing back into production creating a rare ...

7. Sun and planet gear - Wikipedia

   en.wikipedia.org/wiki/Sun_and_planet_gear

   The sun and planet gear is a method of converting reciprocating motion to rotary motion and was used in the first rotative beam engines . It was invented by the Scottish engineer William Murdoch, an employee of Boulton and Watt, but was patented by James Watt in October 1781. [1] It was invented to bypass the patent on the crank, already held ...