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The Rohloff Speedhub is an epicyclic internal hub gear for bicycles, developed and patented by Rohloff AG. It has been manufactured and marketed by that company since 1998. [ 1 ] The Speedhub 500/14 has 14 equally spaced, sequential, non-overlapping gear ratios operated by a single twistgrip .
14 543% [6] 160 Nm [6] 1400g raw cartridge [6] eMTB, heavy cargo, commuter Kindernay: VII 2021 7 428% [7] 160 Nm [7] 1200g raw cartridge, 1750g total system weight including SWAP and Hyseq Onesie [7] eMTB, heavy cargo, commuter Rohloff AG: Speedhub 500/14: 1998 14 526% 130 Nm 11th gear 1700-1825 g [8] Sport/Touring/ Cargo/Tandem Shimano
The Rohloff Speedhub 500/14 is the only bicycle hub with 14 gears, which can replace a regular chain derailleur system regarding level of friction and range of transmission. Rohloff AG also used to make an automatic chain lubrication system called Lubmatic, and cycle tools such as a chain riveting tool and a chain measurement tool.
The 14-speed Rohloff Speedhub hub gear, introduced in 1998, has a range exceeding 5 to 1, and is thus comparable in range to 24, 27 and 30-speed derailleur systems (with 3×8, 3×9 and 3×10 cogs front and rear), since the latter have three overlapping ranges often with only about 14 distinct gears. As there is no overlap with the Speedhub, the ...
The only application currently commercialized is the internally geared bicycle hub. The NuVinci CVT replaces derailleurs and other internally geared hubs, and provides a gear ratio range of about 350%, similar to that on bicycles with 8- or 9-speed hub gears, or with double chain rings (most racing or fast road bicycles). [12]
[6] [1] A prototype of the 14-speed Kindernay XIV hub was presented in 2016. [ 7 ] In 2021 Kindernay was one of the winners of the prestigious Eurobike award for their 7-speed hub model Kundernay VII which is approved for 160 Nm, [ 8 ] [ 9 ] and is designed to withstand heavy loads that can occur on for example cargo bikes . [ 10 ]
The overlapping ranges with derailleur gears mean that 24 or 27 speed derailleur gears may only have the same total gear range as a (much more expensive) Rohloff 14-speed hub gear. Internal hub geared bikes typically have a more restricted gear range than comparable derailleur-equipped bikes, and have fewer ratios within that range.
The bike has always offered standard rear dropout spacing, which allows a wide range of gearing options and disc brakes. Standard options currently include: 8-speed hub gear, 8-speed dérailleur, 24-speed SRAM Dual Drive hybrid gearing system, and the Rohloff Speedhub 14-speed hub gear. The more expensive models are now fitted with disc brakes.
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