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The individual sprockets on a Hyperglide cassette or freewheel are designed specifically to work with their neighbours. [3] For example, the 18-tooth sprocket on a wide-range cassette (such as one for a mountain bike) will have a different ramp pattern than the 18-tooth sprocket on a narrow-range cassette, because the number of teeth on the neighbouring sprocket requires a different ramp ...
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]
The NuVinci CVT gear system uses a set of rotating and tilting balls positioned between the input and output discs of a transmission. Tilting the balls changes their contact diameters and varies the speed ratio. [5] [6] As a result, the NuVinci CVT system offers seamless and continuous transition to any ratio within its range. The gear ratio is ...
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 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.
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)