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2. Bicycle pedal - Wikipedia

   en.wikipedia.org/wiki/Bicycle_pedal

   Bicycle pedal, quill road type, with toe clip and toe strap (1970s) The quill pedal is a common pedal system on bicycles. It consists of a main axle section that is attached to the bicycle crank arm and contains extensions from the axle to which parallel cage plates are attached at the front and rear of the pedal.

3. Shimano Pedaling Dynamics - Wikipedia

   en.wikipedia.org/wiki/Shimano_Pedaling_Dynamics

   Shimano Pedaling Dynamics. Shimano Pedaling Dynamics, commonly called SPD, is a design of clipless bicycle pedals and associated cleats first released by Shimano in 1990. [1] [2] The first model, PD-M737, was aimed at mountain biking enthusiasts who, prior to this, had to use toe clips and straps or "road" clipless pedals which clogged with mud ...

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. Speedplay (bicycle pedal) - Wikipedia

   en.wikipedia.org/wiki/Speedplay_(bicycle_pedal)

   Speedplay (bicycle pedal) Speedplay (stylized as SPEEDPLAY) is a brand of clipless road cycling pedals owned by Wahoo Fitness. Wahoo Fitness re-engineered the lollipop pedals for increased durability and easier setup and maintenance. The pedal features dual-sided entry, 0-15 degrees of free float and 3-axis adjustability, which contributes to ...

6. Bicycle performance - Wikipedia

   en.wikipedia.org/wiki/Bicycle_performance

   Mechanical efficiency. From a mechanical viewpoint, up to 99% of the mechanical energy delivered by the rider into the pedals is transmitted to the wheels (clean, lubricated new chain at 400 W), although the use of gearing mechanisms reduces this by 1–7% (clean, well-lubricated derailleurs and a straight chainline), 4–12% (chain with 3-speed hubs), or 10–20% (shaft drive with 3-speed hubs).

7. Bicycle gearing - Wikipedia

   en.wikipedia.org/wiki/Bicycle_gearing

   Bicycle gearing is the aspect of a bicycle drivetrain that determines the relation between the cadence, the rate at which the rider pedals, and the rate at which the drive wheel turns. On some bicycles there is only one gear and, therefore, the gear ratio is fixed, but most modern bicycles have multiple gears and thus multiple gear ratios.