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In 2001 Shimano introduced a set of trekking components called Di2 (Digital Integrated Intelligence), which included electronic shifting and automatic adaption of front and rear derailleur to riding speed. During the 2000s both Shimano and Campagnolo (2005) [6] experimented with electronic shifting in professional cycle races. [3]
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 ...
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) 1995 1999 12 339% 3500-4000 g City SRAM i-Motion 9: 2005 2012 9 340% 2000g (w/o brake)-2400g (with coaster brake)
Deputy Editor Tara Seplavy reviews the latest Shimano GRX Di2 12-speed components—it’s only 2x, which will disappoint many 1x drivetrain-loving gravel riders. Shimano Launches 12-Speed GRX Di2 ...
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 STI Dual Control shifter and brake lever: 1. Main lever 2. Release lever A. Pulling the main lever towards the rider applies the brake B. Pushing the main lever towards the center of the bike downshifts one, two or three gears depending on how far the lever is pushed (right hand shifter) or changes from a small chainring to a larger chainring (left hand shifter)
Other problems may be implicated in the case of older vehicles equipped with carburetors. Weak, disconnected, or mis-connected throttle return springs, worn shot-pump barrels, chafed bowden cable housings, and cables which jump their tracks in the throttle-body crank can all cause similar acceleration problems.
Shimano Alfine SG-S700 11 speed epicyclic internally geared hub, without auxiliary components. Alfine is a comfort and urban oriented product series by Shimano . It is mainly known for internally geared hubs , but includes also hydraulic disc brakes and levers, chain tensioners, dynamo hubs, cranksets , shift levers , and complete wheels .