Service Library

Double to triple chainring conversion

Posted: 2001-03-08 By: Bike Friday staff member Garner Britt Symptoms I have a 1999 Pocket Rocket Pro with double Ultegra chainrings. How can I upgrade it to a triple? Causes Upgrading would not be difficult but would require quite a few parts. Solutions You would need: a left triple STI

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Spinning out with 62-tooth chainrings

Posted: 2011-04-13 By: Bike Friday staff member Garner Britt Symptoms I have the AirFriday with front 62- and 52-tooth chainrings. With a tailwind or downhills, I spin out. Do you have a chainring greater than 62-tooth available? I am already using a rear 11-tooth cog. Causes At the moment, 62-tooth

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Chain Stretch: The Bête Noire of Constant Riders

Posted: 2011-04-13 Symptoms Chain falls off when riding, chain engages poorly. Think of the chain on your bicycle like a belt: it holds the drive-train together as it propels your bicycle, but one cannot simply tighten the chain when it stretches. Causes The constant pull on the chain over thousands

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Rust on stainless steel cables

Posted: 2001-07-16 By: Bike Friday staff member Gavin Donahue Symptoms Do you have recommendations on how to keep the cables under the bottom bracket dry? A couple of mine are rusty now which is surprising since I thought they were stainless cables. Causes The cables are stainless, but depending on

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Teflon cable trouble

Posted: 2001-03-06 By: Bike Friday staff member Garner Britt Symptoms Tefon-covered cables were installed for all brake and shifting cables on our New World Tourists, which we got three years ago. This past week my front brake started misbehaving – continuing to grip my rim for the first second or

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Re-routing cables

Posted: 2001-01-30 By: Bike Friday staff member Garner Britt Symptoms Can you tell me the correct cable routing for the Pocket Rocket? Mine has drop bars, Campagnolo Veloce throughout. It’s the big loops of cable at the front of the bike I’m worried about. How (ideally) should they crossover each

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Lowering the gearing on a Bike Friday

Posted: 2000-12-26 By: Bike Friday staff member Garner Britt Symptoms My wife and I own are planning a multi-month tour of Europe, plenty of mountains. We would like to lower our gearing. We currently have the Sachs 3-speed hub with 44 x 11-30. Our convential touring bikes, Co-Motion customs, give

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Improving mid-range shifting

Posted: 2000-12-12 By: Bike Friday staff member Garner Britt Symptoms My New World Tourist can be adjusted to shift well either at the high end (small sprockets) or the low end (large sprockets). I haven’t been able to find a compromise that has it shifting smoothly throughout the range. It

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Calculating gearing on Bike Fridays

Posted: 2000-07-14 By: Bike Friday staff member Peter Conklin Symptoms I’m trying to calculate the gear-inches for my Pocket Rocket (451mm wheels). It has the SRAM 3×7 hub. Can you tell me: 1. What is the size of the wheel in inches? 2. What are the multipliers involved with the

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Comparing gearing between models

Posted: 2000-07-20 By: Bike Friday staff member Peter Conklin Symptoms I currently have a Pocket Rocket with an 11- to 28-tooth cog set, a SRAM 3×8 hub and a 48-tooth chainring. In reading the specs for the new Pocket Rocket vs. the New World Tourist, I noticed that the NWT

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