It is possible to handle your motorcycle in this situation at lower speeds, so attempt to stop the motorcycle as soon as possible by applying pressure on both break handles. The motorcycle may wobble so you will need to attempt to keep it straight as possible while aiming for a place to pull over.
You can also keep your feet sticking out a little bit to brace yourself in case you lose control of the motorcycle. Unfortunately most motorcyclists are unable to control their bikes at high speeds with a locked up rear wheel.
The best you can do is attempt to steer your motorcycle in a direction where there is no traffic and will be the softest landing such as a grassy area. There are several reasons why a chain can break on a motorcycle and all of which are preventable with proper maintenance. With that being said, the main reason a chain breaks on a motorcycle is due to lack of maintenance on it.
It takes a lot for a chain to break, so if it comes down to that it means someone seriously neglected to take care of it. Be sure to always use high quality chains on your bike and go to a reputable mechanic.
With lack of proper chain maintenance, there are several things that can cause it to break. Large amounts of rust forms because of lack of lubrication. When a link is rusted enough, it becomes weak and can potentially break. The other big reason a motorcycle chain breaks is because of the wrong tension. If the chain is too loose, it can come out of alignment with the sprockets which will likely cause a jam.
If the chain is too tight, this can cause stress on the links and the weakest link will likely break as some point. As I mentioned before, a chain breaking during a ride is usually preventable with a little extra effort in maintaining your chain. Chain maintenance is one thing you should never skip over.
After any long ride or during every oil change, you should clean off any dirt or road grime that has built up on the chain. You can do this by wiping it down with a wet towel or using an air compressor to blow it all off.
Every time you clean the chain, make sure to re-lubricate with chain lubricant. Spin the back tire and lube the entire chain to ensure the whole chain is covered. Inspect the chain for rust and cracks. Every chain has one link that comes apart; this is needed to put the chain on in the first place.
Look at and examine that link and make sure that link is still in tact. Be sure to also check the tension of your chain regularly, at least once a month. Usually street bike chains should not be able to move up or down more than a half an inch. Why do motorcycles have different size wheels? Most motorcycles have larger front wheels to help with movement and steering. The back wheels are shorter in diameter and wider to help with traction and control of the motorcycle since that is where the power is coming from.
For more info, click here to see an article I wrote. Do all motorcycles have chains? As you can see, the chain will easily come apart. Repeat this process until all portions of the broken chain are removed. For older chains you can remove the broken link and mend the chain back together one link short. Keep in mind, the chain length is very specific for the function of the drivetrain.
If you shorten the chain, you will lose the ability to shift into the largest cogs safely. Therefore, have the chain properly sized and repaired at your local shop once you get home. With the broken link removed you will need to put the chain back together. Start by pushing the two links ends together and placing them in the chain tool.
Force the rivet back into place with the chain tool. Quick links come in many different sizes depending on the amount of speeds your bike has. From speed, chains will all use a different quick links that are not cross compatible. If only the outer plates are broken, you can cut them out, install the quick link, and ride off as if nothing happened. Installing a chain pin is necessary for all Shimano brand chains.
Like quick links they are speed specific ie. To install a chain pin, remove the offending link and the rivet completely see image below. Then, put the two chain ends together held in place by the chain pin and use the chain tool to press the pin into place. Once the chain is installed break off the portion of the pin protruding from the back of the chain. Breaking a chain is rarely an isolated incident and more frequently, it is the sign of a larger issue.
If you do break a chain on the trail, be sure to get your bike to a professional for inspection. Additionally, if you need to replace the chain be prepared to replace the cassette, and possibly chainrings as well. Considering all the parts of your drivetrain wear together, attempting to to introduce a new part into that group might not function well.
We hope this information is helpful, both for situations when out riding and when you need to bring your bike in for servicing.
Have Fun! Why is a broken chain common? Wear Chains break for a host of reasons, but most common is wear. Impact Chains, like anything else on your bike, can be damaged if it gets hit hard enough.
The parts of your bike chain Your chain is made of only four pieces; the outer plate A , inner plate B , roller C , and rivet D and every link contains two of each.
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