Service Library

Upgrading 8-speed 3×7 cassettes

Posted: 2000-10-19 By: Bike Friday staff member Garner Britt Symptoms I am currently riding a New World Tourist with an 8-speed cassette with 9-speed spacing. Can I change this to a standard 9-speed cassette? Solutions At the moment, the answer is no. Sorry. The SRAM Spectro 3×7 hub is designed

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No overdrive on SRAM Spectro 3×7 hub

Posted: 2001-04-10 By: Bike Friday staff member Garner Britt Symptoms I have a Two’sDay with a SRAM Spectro 3×7 hub. As far as I can tell the hub shifts into the low and mid internal gears, but not the overdrive. I have tried both loosening and tightening the shifter /

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Twitching SRAM 3×7 hub chain

Posted: 2000-11-15 By: Bike Friday staff member Garner Britt Symptoms My SRAM 3×7 hub “twitches” (for want of a better description; the end of the indicator chain pulses rhythmically while pedaling). Is this normal, or OK? Causes When the chain on your SRAM Spectro 3×7 hub pulses in and out,

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How to shift the SRAM 3-speed hub

Posted: 2000-07-10 By: Bike Friday staff member Wolf Moritz Symptoms I’m having difficulty getting the three-speed hub to shift. (This refers to the SRAM 3×7 hub, formerly the SACHS 3×7 hub.) Solutions Shifting is simple, but may take a while to get used to. While pedaling, move your left shifter

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SRAM Spectro 3×7 hub adjustment

Posted: 2001-06-16 By: Bike Friday staff member Lynette Chiang Symptoms I’m only able to shift into two of the three gears on the SRAM 3×7 hub. Causes The cable to the SRAM 3×7 hub can stretch over time, misaligning the pin that lines up the pawls inside to hub. Also,

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How to remove a SRAM 3×7 hub-equipped wheel

Posted: 2000-09-27 By: Bike Friday staff member Wolf Moritz Symptoms I’m not sure how I’m supposed to get my rear wheel off, since there’s a cable running into the three-speed hub. (This refers to the SRAM 3×7 hub, formerly the SACHS 3×7 hub.) Solutions While pedaling, shift the 3×7 hub

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SRAM 3×7 hub maintenance

Posted: 2000-10-06 By: Bike Friday staff member Wolf Moritz Symptoms What do I need to do to keep the three-speed hub working properly? (This refers to the SRAM 3×7 three-speed hub, formerly the SACHS 3×7 hub.) Solutions The 3×7 hub on your Bike Friday will require fairly little maintenance. Every

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How to replace the indicator chain on the SRAM 3×7 hub

Posted: 2000-10-06 By: Bike Friday staff member Wolf Moritz Symptoms The small chain leading into the three-speed hub broke. (This refers to the SRAM 3×7 three-speed hub, formerly the SACHS 3×7 hub.) Causes This tiny chain is called the indicator chain. It runs into the hub and is pulled by

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Plastic band on SRAM 3×7 hub

Posted: 2000-11-28 By: Bike Friday staff member Steve Ransom Symptoms Curious about the gray plastic band on the SRAM Spectro 3×7 hub. It doesn’t seem to have any function… what does it do? Causes It is entirely decorative. Solutions You can remove it if you like. Related Files SRAM’s Spectro

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SRAM 3×7 hub information on the Web

Posted: 2011-04-13 Symptoms I need more info on the 3×7 hub. Solutions If you’re looking for more information on the SRAM 3×7 (3×8) hub, we’ve found their Web site at http://www.sram.com to be chock full of useful information. Related Files SRAM 3×7 component schematic [gif]

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