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Tag Archives: 7-speed
Additions to the Gear Calculator
New crank lengths have been added to the Gear Calculator and Internal Gear Calculator, so they can calculate gain ratios for children’s bicycles with cranks down to 100 mm (less than 4 inches).
Posted in Updates
Tagged 29er, 32 inch, 36 inch, 7-speed, 8-speed, 9-speed, bicycle, calculator, children, cranks, development, fatbike, gain, gain ratio, gear inches, gearing, internal-gear, length, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com
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New tire sizes in Gear Calculator
Several tire sizes have been added to the Gear Calculator: Fatbike sizes: 26 inch tires, 26 x 3.8, 4.0, 4.25, 4.7 Wide 29ers: 29 x 2.7 and 3.0 32 inch and 36 inch (common on unicycles).
Posted in Updates
Tagged 29er, 32 inch, 36 inch, 7-speed, 8-speed, 9-speed, bicycle, calculator, development, fatbike, gear inches, gearing, internal-gear, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com
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Shimano 7-speed Hubs
Major revision to the page about Shimano 7-speed hubs: — Added information on new hub models and fixed the many links which Shimano broke when it went to its new organization of technical Web pages — Linked to a number … Continue reading
Posted in Updates
Tagged 7-speed, bicycle, cassette joint, hub, internal-gear, maintenance, Nexus, Rollerbrake, Sheldon, Sheldon Brown, sheldonbrown, shimano
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SRAM and Sachs Internal-gear hubs
Updates to our main page on Sachs and SRAM hubs , and our page on the G8 and G9 hubs. We have located additional technical information from SRAM, and wehave fixed a number of Web links that went bad.
Posted in Updates
Tagged 7-speed, 8-speed, 9-speed, bicycle, coaster brake, disc brake, Elan, Fichtel & Sachs, g8, G9, gearing, gears, hub, i-Motion, i-Motion 9, internal, internal-gear, maintenance, Orbit, planetary, Sachs, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, shifter, Spectro, SRAM
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Sturmey-Archer anti-rotation washers
Major addition to our article with general technical information about Sturmey-Archer internal-gear hubs — the different types of anti-rotation washers. It matters which ones you use!
Posted in Updates
Tagged 4-speed, 7-speed, 8-speed, andirotation, anti-rotation, axle, bicycle, gearing, gears, hub, internal, internal-gear, maintenance, shelbroco, Sheldon, Sheldon Brown, sheldonbrown.com, Sturmey-Archer, torque, twist, washer
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Updates to Sturmey-Archer 4, 5 and 7-speed hub page
Major updates to the page on Sturmey-Archer 4, 5 and 7-speed hubs, mostly concerning the hubs sold from 1991 through 2009.
Posted in Updates
Tagged 4-speed, 5-speed, 5-Star, 7-speed, AF, AT7, bicycle, FC, FG, FW, gearing, gears, internal, maintenance, planetary, RX-RF5, S-RF5(W), S5, shelbroco, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, shifter, Sprinter, Sturmey-Archer, Summit
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More troubleshooting advice on Sachs/SRAM internal-gear hubs
There’s more troubleshooting advice now in our article about Sachs/SRAM internal-gear hubs: how to test whether a problem is inside the hub, or only in the shifter and cable — for hubs with 3, 5 or 7 speeds, with pullchain(s) … Continue reading
Posted in Updates
Tagged 3 x 7, 3x7, 5-speed, 7-speed, 9-speed, bicycle, coaster brake, DualDrive, Elan, g8, G9, gearing, gears, hub, i-motion 3, i-Motion 9, internal, internal-gear, maintenance, p5, Pentasport, planetary, s7, shelbroco, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, shifter, Sparc, Spectro 7, SRAM, Super 7, T3
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Shimano Internal-Gear Hubs
John has made major updates to the pages on Shimano Nexus and Alfine internal-gear hubs — 3-speed, 7-speed and 8-speed; also a page with general mechanical information.
Posted in Updates
Tagged 11-speed, 3-speed, 4-speed, 7-speed, 8-speed, Alfine, anti-rotation, antirotation, cassette jopint, hub, internal, internal-gear, maintenance, Nexus, repair, shimano
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Assembly of Shimano 7-speed Hub Axle Unit
Shimano’s service instructions for the Nexus 7-speed internal-gear hub assume that you will replace the entire axle unit. Taking disassembly past the point where instructions are available is all too easy. You might also want to cannibalize parts to assemble … Continue reading
Page updates
John has updated chains.html, with some added thoughts about chain cleaning, and more pictures; also leather.html, with a couple of comments from readers about leather treatments; k7.html and k8.shtml to reflect changes in product availability.
Posted in Updates
Tagged 7-speed, 8-speed, Alfine, bicycle, chain, gearing, gears, leather, maintenance, saddle, shelbroco, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com
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