Repair Help

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Chain Compatibility

This article will review the basics of bicycle chain compatibility to help you know how to choose the right chain for your bike.


Chain Cleaning with a Park Tool Chain Scrubber Video

Chain cleaning is an essential part of bike maintenance. It extends the life of your whole drivetrain and greatly improves shifting and overall drivetrain function. This repair help article will walk you through each step of cleaning and lubing a drivetrain.


When to Replace a Worn Chain Video

Knowing when to replace your chain is an important aspect of bicycle maintenance that can help extend the life of components and maintain optimal drivetrain performance. This article covers the various tools and methods for determining when to replace a bicycle chain.


Chain Length Sizing Video

Replacement chains for bicycles are always longer than you need. This repair help article will take you step by step through the different methods of sizing a bike chain.


Chain Length Sizing: Campagnolo® Video

While most chains can be sized using the same methods, Campagnolo® recommends specific measures be taken in order to ensure ideal shifting feel at the levers. This repair help article will take you step by step through the methods of sizing Campagnolo® chains.


Chain Replacement: Derailleur Bikes Video

Replacing your chain as it wears out is good preventative maintenance, much like changing the oil in your car. It prolongs the service life of other, more expensive parts on your bike, so replacing your chain before it becomes too worn is a good idea. 


On the Ride Chain Repair Video

This article will review temporary repairs to address common on-the-ride chain problems, including tight links, broken chains, and twisted chains.


Chain Replacement: Single Speed Bikes Video

This article will discuss replacing a chain on a single speed or two-sprocket bike. Sizing, installing and correct tension will be reviewed.


Chain Tension for Tandem Front End

This article will discuss sizing the captain-to-stoker chain for tandems, called the "primary" chain. This is the chain that connects the front rings to the back rings. Setting chain tension will also be discussed.


Chainline Concepts

This article with discuss the concept of chainline. See also related article on frame alignment.


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