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2. Shifter (bicycle part) - Wikipedia

   en.wikipedia.org/wiki/Shifter_(bicycle_part)

   A twist-style 14-speed indexed shifter made by Rohloff. A bicycle shifter or gear control or gear levers is a component used to control the gearing mechanisms and select the desired gear ratio. Typically, they operate either a derailleur mechanism or an internal hub gear mechanism. In either case, the control is operated by moving a cable that ...

3. Bicycle drivetrain systems - Wikipedia

   en.wikipedia.org/wiki/Bicycle_drivetrain_systems

   They can be used individually, as an external derailleur or an internal hub gear, or in combinations such as the SRAM Dual Drive, which uses a standard 8 or 9-speed cassette mounted on a three-speed internally geared hub, offering a similar gear range as a bicycle with a cassette and triple chainrings. Derailleur gears. Cogset; Crankset; Hub gear

4. Semi-automatic transmission - Wikipedia

   en.wikipedia.org/wiki/Semi-automatic_transmission

   Since 2014 season, Formula 1 cars currently use mandatory 8-speed paddle-shift gearboxes. The now-defunct CART Champ Car Series switched from a lever-shift sequential system to a 7-speed paddle-shift system for the 2007 season. This transmission was introduced with the new-for-2007 Panoz DP01 chassis.

5. Villiers Engineering - Wikipedia

   en.wikipedia.org/wiki/Villiers_Engineering

   In spite of the huge success of the 269 cc two-stroke, the four-stroke engine had not completely been shelved, as in October 1914, J.H Motors of Oldham announced [3] two motorcycles, the No.1 fitted with a 2.75 hp Villiers four-stroke engine of 349 cc (74.5 x 80 mm bore and stroke), and a 2.5 hp two-stroke model using the Villiers 269 cc engine ...

6. Two- and four-stroke engines - Wikipedia

   en.wikipedia.org/wiki/Two-_and_four-stroke_engines

   The four-stroke engine is more efficient when running at full throttle, while the opposite is the case for the two-stroke engine. When a small car under heavy load runs at half speed, the engine automatically switches to the two-cycle mode, which is then more efficient. The research on this showed a 27% reduction in fuel consumption. [8] [9]

7. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!