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2. Triumph Cycle - Wikipedia

   en.wikipedia.org/wiki/Triumph_Cycle

   Triumph Cycle. Head badge of a Raleigh built Triumph bicycle. Steel step-through frame sports roadster bicycle with 3-speed internal hub and Brooks saddle. Triumph roadster with rod brakes. Triumph Cycle Co. Ltd., based in Nottingham, England, was a bicycle manufacturing company.

3. Three-speed bicycle - Wikipedia

   en.wikipedia.org/wiki/Three-speed_bicycle

   Three-speed bicycle. The three-speed bicycle is a bicycle that uses internal hub gears at the rear wheel hub to provide three gear ratios. Three-speed hubs have been in use since the early 1900s. Though they are heavier than comparable derailleur systems, internal-gear hub systems generally last longer and require less maintenance.

4. Bicycle gearing - Wikipedia

   en.wikipedia.org/wiki/Bicycle_gearing

   One standard option for the Brompton folding bicycle is to use a 3-speed hub gear (roughly a 30% difference between gear ratios) in combination with a 2-speed derailleur gear (roughly a 15% difference) to give 6 distinct gear ratios; this is an example of half-step gearing. Some Brompton suppliers offer a 2-speed chainring 'Mountain Drive' as ...

5. Bicycle and motorcycle dynamics - Wikipedia

   en.wikipedia.org/wiki/Bicycle_and_motorcycle...

   Tires have a large influence over bike handling, especially on motorcycles, [9] [45] but also on bicycles. [7] [69] Tires influence bike dynamics in two distinct ways: finite crown radius and force generation. Increase the crown radius of the front tire has been shown to decrease the size or eliminate self stability.

6. Bicycle tire - Wikipedia

   en.wikipedia.org/wiki/Bicycle_tire

   A tubed, clincher tire showing the inner tube protruding between the tire and the rim. Tubular tire rolled from rim to show glue between them. Clincher cross section schematic with 1: rim, 2: rim strip, 3: rim braking surface, 4: bead core, 5: inner tube, 6: casing, 7: tread. The first bicycle "tires" were iron bands on the wooden wheels of ...

7. List of bicycle parts - Wikipedia

   en.wikipedia.org/wiki/List_of_bicycle_parts

   Hub gear: a gearbox mounted inside the hub, 3-speed is common, 5, 7 are available ("Sturmey-Archer"), Enviolo makes a CVT, and Rohloff makes a 14-speed hub. Cable operated by one or two cables; Indicator: a turn signal; Inner tube: a bladder that contains air to inflate a tire. Has a Schrader, "Woods"/"Dunlop" or Presta valve for inflation and ...