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Shimano Alfine SG-500 2006 2016 (?) [15] 8 307% 1600 g City Shimano Nexus Inter-8: 8 307% 5th gear 1550-2040 g City Shimano Nexus Inter-7: 1995 7 244% 1465-1860 g City Shimano Nexus Inter-5E 2019 5 263% 60 Nm 1st gear 1650 g e-bike Shimano Nexus 4 Speed 4 184% 1st gear City Shimano Nexus Inter-3: 3 187% 2nd gear 1220 g City SRAM Spectro E12 (Elan)
A Rohloff Speedhub hub gear A Shimano XT rear derailleur on a mountain bike A bicycle gearbox with chain tensioner. 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.
One example is the Protean two-speed derailleur available on the Whippet safety bicycle. [4] The French bicycle tourist, writer and cycling promoter Paul de Vivie (1853–1930), who wrote under the name Vélocio, invented a two speed rear derailleur in 1905 which he used on forays into the Alps. [5]
Shimano XT rear derailleur on a mountain bike. The majority of bicycles transmit power from the crankset to the drive wheel with a bicycle chain. Derailleur gears, featured on most racing and touring bicycles, offering from 5 to 30 speeds
Hyperglide is the name given by cycling component manufacturer Shimano to a sprocket design in their bicycle derailleur tooth cassette systems. [1] It varies gear tooth profiles, and/or pins along the faces of freewheel or cassette sprockets, or between the chainrings in a crankset , to ease shifting between them.
English: A simple diagram of a road bicycle drivetrain, derailleurs, right crank, and outline of the frame. I've traced a photo of my road bike, with a mostly Shimano parts: a 600 rear derailleur, 8 speed cassette, 105 octalink double crank, and 105 front derailleur.
A similar system was built for the nexus 4. [4] Inter 4 - Nexus Inter 4 hubs had four speeds, but the same 186% range as the Inter 3. It only geared up, so a relatively large rear sprocket was necessary to give a reasonable development when combined with a normal front sprocket. [5] It has been discontinued and spare parts have become hard to ...
A Suntour Sprint rear derailleur A front derailleur manufactured by Suntour a pair of Suntour road brakes. In 1964, Suntour invented the slant-parallelogram rear derailleur. The parallelogram rear derailleur had gained prominence after Campagnolo's introduction of the "Gran Sport" in 1949, [7] [8] and the slant-parallelogram was an improvement of it that allowed the derailleur to maintain a ...