|
|
Figure 1: Parts of the bicycle drivetrain |
The chain (Figure 1) connects the crankset to the cassette.
|
|
Figure 1: Parts of the bicycle drivetrain |
Once a month check that the chain is clean, free of rust, and properly oiled. All links of the chain should pivot smoothly and without squeaking, and no links of the chain should be deformed. The chain pins (Figure 2) should extend the same distance from the chain plates on both sides of the chain.
Every 3 months check your chain for wear with a chain wear gauge or a ruler. Each full link (Figure 2) of a new chain measures one inch. If 12 links of your chain measures 12 1/8 inches (308mm) or more, the chain should be replaced. With good maintenance, a chain usually lasts 1000 to 1500 miles (1600-2400km) on a road bicycle, less on heavy-use bicycles like mountain bicycles, or if the chain is not kept clean and lubricated. As the chain becomes worn, it creates extra wear of other drivetrain components like the cassette and chainrings, so keep the chain in good condition and replace it when necessary. Replacing the chain takes special tools and training and should only be done by your Trek dealer.
|
|
Figure 2: Parts of the chain |
Adjust the tension of the chain when you install the rear wheel or when the chain tension does not meet the Inspection requirements. For bicycles with a rear derailleur, the chain does not require adjustment.
Once a month clean and oil the chain. When lubricating or cleaning your chain, always place a rag behind the chain to avoid getting oil on the rest of the bicycle. Use a synthetic chain oil or similar lubrication. After oiling your chain, wipe off the excess oil with a rag. Done vigorously, this will also clean your chain.
Do not clean your chain with solvents. Many solvents can damage the finish of your bicycle, so the part should be removed from the bicycle before cleaning. Removing a chain takes special tools and skills, so we recommend that you not perform this procedure.
