If the bike chain starts to make noise and slows down, it will need to be repaired or replaced. To do this, the chain must be removed from the bike to clean and replace worn links. The same procedure is required after installing sprockets with increased or decreased number of teeth. In this case, you need to add or remove links, respectively, which cannot be done without removing the chain from the bike. If this is done incorrectly, then subsequently problems will arise with the chain that will require its replacement.
Necessary
- - keys set;
- - a device for squeezing the chain;
- - screwdriver;
- - pliers.
Instructions
Step 1
Remove the chain from the bike sprockets. To do this, flip it over, placing it on the handlebar and saddle. Then unscrew the rear wheel nuts holding it to the frame. Carefully free the chain from the rear sprocket or from the chain feed rollers on a multi-speed bike and remove the rear wheel. Next, release the chain from the front sprocket. It will be fixed on the frame, therefore, in order to remove it, you will need a special device for squeezing the chain.
Step 2
A similar device is sold in most shops that sell bicycle parts. To disengage the chain, press out one of the bushing pins (pegs). Select the chain segment to be disassembled. This can be absolutely any segment that has not been previously disassembled, which will be seen from its condition, since after each disassembly and assembly, such a segment loses its strength and looses a little.
Step 3
Insert the selected link into the wringer and secure with the special knurled screw. This will secure the chain to the device. Fix the link so that the pin (chain peg) is exactly opposite the release axis of the device. After that, simply rotate the release axle handle, which is attached to the bolt, and it will squeeze out the desired pin. Be sure to control this process so that it does not squeeze completely out of the outside of the link. If this happens, it will be very difficult to insert it back.
Step 4
After squeezing out the pin, the chain will open on its own, remove it from the bike and perform the necessary operations. Be sure to make sure that the extruded pin is not lost. If it is necessary to shorten the chain, remove the required number of links using a chain breaker. In the event that you need to increase its length, insert the links. After that, assemble the chain directly on the frame, insert the rear wheel into the connectors, and pull the chain over the sprockets, and then fasten the wheel with nuts. After pedaling a few times, make sure that the mechanism works without effort and does not create unnecessary noise.
Step 5
There are bicycle chain options, one link of which is a lock. In this case, find such a link to remove the chain from the bike. Use a screwdriver to bend the locking plate and remove it with pliers, after which the chain will disconnect. But when choosing a new bike chain, be sure to keep in mind that this option is less durable and reliable.
