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Shimano: Alfine SG-700 2010 2017 [9] 11 409% n/a 1600-1744 g [12] [13] [14] City, Sport 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 ...
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
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 ]
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.
Shimano, Inc. (株式会社シマノ, Kabushiki-gaisha Shimano), originally Shimano Iron Works (島野鐵工所) and later Shimano Industries, Inc. (島野工業株式会社), is a Japanese multinational manufacturing company for cycling components, fishing tackle and rowing equipment, which also produced golf supplies until 2005 and snowboarding gear until 2008.
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 ...