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Cool bike parts and accessories from the coast of Maine since 1976
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Your trail: Home arrow Repair and Technical Info
Welcome to Bikeman's Repair and Technical Information section. Our repair shop is busy working on bikes for most of the year. This is where you'll find handy tips and tricks, our favorite tools for the job, and detailed installation descriptions for some of the unique projects you find yourself getting into. If you don't find your answers here drop us an email, there's a good chance we've dealt with it before.

Inside Bikeman's Toolbox


Bikeman loves tools and he is willing to open up his tool box for you to take a peek. Each week Bikeman will share with you a new tool from his box. We will take a close look at the tools intended use, its pros and cons, and rate the tool with our Bikeman Heads rating system. Because new parts are really just an excuse to ad another tool to the box.
 Latest Toolbox Archives:

Bikeman's Toolbox Archives.

Featured Tech

Featured Tech Articles
Bikeman's Featured Tech Articles are in depth, step by step, instructions on the latest repair and maintenance techniqes. From gluing tubular tires to converting a your bike to a single speed, Bikeman has done it all and wants to share his knowledge with you. Enjoy!
 Latest Featured Articles:

Featured Tech Articles Archives.

Name That Tool

New Product Introductions
Here we are putting all the home mechanics and shop rats to the test. Do you think you have what it takes to... Name That TOOL? Each week a new tool will be posted and winner anounced. As always a $10 gift certificate goes to the winner!
 Latest Contest Items:

name That Tool Archives.

Tech Archives

Tech Info Archives
Defining the latest terminology and technology in the bicycle industry. Ever wonder what the difference is between an SGS and GS rear derailluer. Or how do you know the BCD of your chainrings... and what is BCD anyway. Bikeman will explain it all here.
 Latest Tech Info:

Tech Info Archives.
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Cassettes & Freewheels
Bikeman's Tech Info

Basics of Cassettes & Multi-Speed Freewheels...
...and how they aren't the same thing.  In this installment of Bikeman's Tech Info Archives we'll get into the basics of cassettes and freehub bodies, as well as the good old-fasioned freewheel.
 
Tire and Rim Diameters
Bikeman's Tech Info

Rim and Tire Sizes - ISO and ETRTO
There are a LOT of tire sizes in the world of bicycles.  This is by no means a thorough explanation of all the different sizes - it's just meant as a quick guide.  Here's a run-down of the common rim and tire diameters that we run into here at the bike shop.
 
Disc Brake Mounting Standards
Bikeman's Tech Info

Disc brakes have now become mainstream in the world of bikes.  They provide smooth, powerful braking in a wide variety of conditions.  They have also added some extra complexity.  There have been a few different mounting options through the years as disc brakes have evolved, now there are two major mounts.  Here's a basic run down on disc brake mounting.
 
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