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How to Adjust a Poorly-Shifting Bike | Bicycle Repair

How to Adjust a Poorly-Shifting Bike | Bicycle Repair

We are going to talk about if your bike is
not shifting properly what is going on with it. So basically there is a couple of different
things that could be going wrong. First of all you want to check your chain
with a chain checker to make sure that your chain and your drive train is not worn out. That could be one reason why it’s skipping. This chain is completely fine. It’s brand new. The chain checker is not going into the chain
at all. Another thing that’s really, really common
especially if you’re going up into an apartment building or you’re going through doors all
day in and out of offices, is this back here. It’s called a derailleur hanger. Your derailleur actually connects to that
and that bends. If you hit against the derailleur maybe against
the door or something else, maybe you crash a little bit. If that’s bent what you are going to have
to do is bend it back. It’s a specialty tool. That could be the reason that it’s skipping
in the back gears. Another reason could be that your cable tension
is off. So your cable tension is either a little bit
too low or a little bit too high. You can adjust that with your barrel adjuster
here. Basically if it’s not going up fast enough,
you can tighten it by turning it left. Or you can loosen it if it’s not going down
to the highest gears by turning it right. Also it could be that your derailleur is worn
out or broken or the shifter is broken. Sometimes the shifters inside here and their
mechanisms break down over time and just stop working properly. Also the derailleurs over time using them
a lot they just start to wear out. So that could be another reason why. Some of the reasons that you may have trouble
with your shifting is you may hear a lot of noise and we find that a lot of customers
come in and they say that they have a lot of noise in the bike. Their shifting actually works very, very well. But what some people don’t understand is that
they may be in cross gears. Basically what that means is that, let’s say,
I’ll put the bike in cross gear right now. Basically what that means is let’s say you
are in the lowest gear up here and you’re in the highest gear in the front. That’s a cross gear. You hear all that noise it’s making. It’s grinding up against the derailleur. The chain works best when it’s completely
straight. If it’s at an angle it’s not going to work
very well. Also these derailleurs aren’t made to go in
cross gears. Sometimes higher end shifters have a little
middle section where you can ride in cross gears but it’s not usually recommended because
it wears out your chain and drive train faster. So it’s not that your derailleurs are out
of adjustment. It’s just that the derailleurs are not being
used properly. The other reason that your derailleur may
be not working is that sometimes these get shifted. The front derailleur may get shifted sideways
and may be too low or may be too high. That’s definitely a good thing to do is take
it to a bike mechanic and see what’s going on with it. A lot of times a professional can assess what’s
going on with your shifting really quickly. Also the last thing that we see a lot is we
see that cables and housing is very corroded. Basically it needs to move very, very smoothly
through this piece of housing. This is a piece of housing. The cable runs through it. If it’s not running smoothly especially in
index shifting which is click shifting, then it’s going to skip. It’s not going to shift up to the proper gear
or down to the proper gear fast enough. That’s usually what we see most customers
with if they’re having shifting problems.

43 comments on “How to Adjust a Poorly-Shifting Bike | Bicycle Repair

  1. DUDE you are awesome!!!!  Couldn't figure out what the hell was the problem with my bike….the barrel adjuster fixed the issue.  THANK YOU!

  2. i have ran into a issue. my bike tire will not spin when i try to crank me peddle. the hole thing just spins w/o the tire spinning its a schwinn, 300 bucks. took so long to save for a good bike a yr or so ago..

    dont have the cash to wast to take it to someone  (state budget)

  3. What is the solution for slipping shimano chain ?
    Please help me . Send me your email so I can send you the video I made about my other bike .

  4. don't know if anyone else has same problem, I have 3 gears? and 8 speeds, usually ride in 2,8 config. cruising along there is no noise (pedalling softly to moderately) but when i get some speed up and stand, pushing with power the chain slips? and it makes a clunky sound, does that every couple seconds. it's the only gear with which I have that problem.

  5. (Mountain bike) In first gear 1-6 speeds works fine but when I try to move to second gear the chain doesn't move completely and clicks?? Help

  6. my bike will not go into 1st gear I pull it there then it just goes back to 2 it doesn't even click when I pull it on first can someone help?

  7. help me pls… I have Capriolo CTX 240 Full Suspension, and I have problem with shifting. On shifter is 1st gear but its not 1st, its 2nd gear and when I try to put chain on 1st gear it feels or it backs to 2nd gear pls help….

  8. 1:05 Thanks a lot for this part my gears wouldn't shift up and I thought it was a worn out drive train. Now it's shifting like butter without skipping

  9. dude I have cosmic trium 27.5 hybrid it's rear derailleur not shifting to highest gear .what should I di

  10. Very good stuff Sir. I fix bikes free, for neighborhood children, almost daily. This gave me a couple of new things to look at. TYVM I fix Walmart Mongoose and Next things for kids in the hood. Most are rusted to heck. But sometimes I do need to get into derailleur and cable adjustments.
    – Joe

  11. The thing is that i bought a new mountain bike and i am totally new… the bike is a 21 speed bike and after 3-4 rides i used to think that when i shift gears the chain moves into different cogs… and it seems thats the right thing but after today i was riding i noticed that after i once changed gear it started making noise as if it is making contact with something while i pedal so i checked it out and when i change gears the chain no more changes cogs??? but i think i feel the difference as if it is changing???
    I am new to this and help will be gladly appreciated!! 🙂

  12. Nicely done. Fast and to the point. I was able to fix my bike in minutes and will be ready for tomorrow's 50 mile ride.

  13. My problem with my bike is that when I shift up gears, the shifter skips a gear then uses the one that miss-shifted go into the wheel

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