Every other instructor begins with H&L screws (Park Tools included). You've solved a problem that seems incredibly problematic with unparalleled ease. I was working with a new bike so that should be taken into consideration by comment readers. The repair may be significantly more involved. Thank you for your help!
I agree. Every time it happened, I kept disconnecting the cable and going through the HL adjustments again - and still I couldn't eliminate all chain rub. When you think about it logically, cable tension is an obvious factor!
You are the man! For me, the front derailleur is the trickiest component to deal with. I watched a few road bike specific videos about this and you explained it better than they did without using a road bike. Thanks for the video!
Your video was perfect. I wish it was the first one I would have watched. Now I'm screwed. Watched another video that told me to adjust those 2 screws. I think I made it worst.
me too, I did the same!! This was a much better video, I also wished I watched this first. I really @#$#@ the adjustment, I took it to a bike shop and mechanic set it to some degree but still rubbing so will have to try just adjusting the barrel adjuster. Another mechanic also told me that the two screws should not be touched just the barrel screws, lesson learned hard way.
I am facing the same issue and now front derailleur is totally fucked up...and there is no way by which i can fix it...and my Bike is just few days old 😭😭😭
Sir very informative video. Thanks a ton. My microshift mezzo 21 speed front High shifter is not clicking and have to push all the way to shift the chain. Also when chain on front others the biggest ( 3) ring the the front low shifter seems jammed but a little more push working. (Low shifter has that clicking sound and efficienct) Sir any advice?
I watched all kinda videos but your video is the best because you put it simple and dont explain with complicated mechanic words. Perfect. Barrel is the way to go with this...screws literally did nothing but limit. Others were moving shifters with screws which is totally not important for solving this issue
Also another thing kinda wierd. Is it advisable to put some normal sanitizer gel alcohol based on the schrader valve cap and inside the valve, surrounding alloy wheel rim area to sanitize. The mechanic while checking leak of the valve put some spit on the valve.
Very informative, again. Much better than that Park Tool guy!! My GT Aggressor’s chain is barely rubbing the cage when the big front gear, and when the small two on the cassette are engaged. When in the #2 front, and all gears on the cassette , it’s quiet. I think this tutorial will help me out a lot!!
Thanks, Jeff! Remember cross chaining, most bikes will get chain rub which is normal. That's the extreme like when the chain is in the biggest front ring and smallest cog on the cassette. Or vice-versa.
Hi, my front derailleur is going from 1 to 2 gear and 2 to 3 gear in two clicks each. Also there is slight chain rub on left side on 2 gear. Gear downshifting is smooth. Please tell me how to fix it?
Great tutorials brother. Got a question for you. I've experienced on a personal bike of when you back pedal the chain will not remain on the cog selected therefore it falls off onto lower ones making it difficult to continue pedaling cause it will go back up the the one previously selected. Any tutorial or comment on this issue? Keep up the good work and kudos!
Thanks, Reyes, In some cases that may be normal, usually in a repair stand when the rear derailleur is on gear 1, the largest cog. Or if you are cross chaining or in the biggest ring in the front and smallest in the rear (or vice versa) this may happen. Another reason may be the freewheel hub may be spinning backward too slowly. If so it would not be able to keep up with the chain. Check this by spinning the cranks, remove your feet or hands to see if you get ghost spinning. Lack of tension in the chain, check the b screw. Chain too long. This would be a good video for me to make. Thanks for the feedback.
If it won’t move, it could be stuck and you will need pliers to unstuck it. Or the adjuster has full exceeded its travel and is no longer able to engage and produce results. If that happen you would need to loosen the cable pinch bolt and re-engage ( screw in) the adjuster.
If the chain is rubbing the inner part of the cage - which is the left side as described here (the video is describing what to do with the opposite rubbing) - and you have no slack to tighten on the barrel adjuster, what do you do please?
It could be stuck from dirt or the housing leading in to the barrel adjuster is creating stress Roma bad or tight angle. Try to straighten the housing where it enters the barrel. Hold this straight while turning the barrel. Use pliers to Break the barrel free if need be.
I got a problem with my front big ring! The only way to change my big ring is I need to put my back derailleur to the small ring but if I put it my front derailleur to the middle or small and change my back derailleur to different ring and shift my front derailleur to the big ring it won’t let me, need help!
I'm getting a rubbing noise when running front 3 and rear 8. I tried what you suggested and it didn't work for me. Guess I will have to take it to a mechanic. Rest of the gears work normally tho and I hardly use front 3 and rear 8. Helpful video. Cheers
I took cable out of lower set screw mount. Now I gotta get it back where it was so I don't limit out barrel adjuster. At least I know what I did wrong. Not my first rodeo, but first time on this particular bike.
Barrel adjuster fixed the rub on big chain. The problem with my vintage 2005 Shimano front derailleur (Mega 9) is that you can't pull on the cable with needle nose pliers and then tighten the allen key clamp because the cage blocks access. Terrible design!
You're experiencing a harder shift at your hand? Is the bigger chainring the last and largest chainring? If so, You may be running into the High limit screw a little too soon. Loosen, counterclockwise, H screw in micro turns, 1mm at a time. And check.
HOLY SHIT THANK YOU. I WATCHED LIKE 3 VIDEOS.... ALL WORTHLESS. THE PIECE YOU HAD THAT EVERYONE DIDNT WAS A PROPER EXPLAINATION OF THE BARREL ADJUSTER. THANK YOU MAN! WOW I WASTED HOURS.. FFFFFFFFFFF
Great vid and info, thanks. The only thing that spoils it for me is the background music. Too distracting. I kept finding myself tuning out of what you were saying because of it.
thank you for cutting to the chase the amount of videos that begin with "the front derailleur was invented approximately 30 years ago" yawn.... i just want to fix my bike. Thanks for the help!
lol! From here on out I hope to keep to that format. I feel the same way, I have no patience about first and last name and how the dog is feeling. Although I love dogs.
Really helpful. Now I know why I has having no success. Looking at my barrel adjuster and it has come off completely (the screw) it won't screw back in? Any advice ? Thanks
I have chain rub against the inner front derailleur when front gear is largest and rear gears are largest and second largest. I have no issues with shifting gears. I am a bit confused on which barrel to adjust for this, whether it is left or right side. Thank you!
Super useful, majority of people touch the screws and magically move the derailleur, but they omit a lot of things and if the chain doesn't fall off you can solve your rub problems just with the barrell...
You wounded to manipulate the cable tension T the pinch bolt. Pulling it tight(er) or leaving slight slack. Kinda hard but doable. Best thing to do is install a inline barrel adjuster. Minor surgery.
@@BikeTeacher I have the R7000 FD do i still need the barrel adjuster? What are the process of installing barrel adjuster do i need to buy new cables/bartape n such?
Bro I don't know how do I thank u. I subscribed. I was playing with the screws but this solved my problem. Now the gears are perfect just, it doesn't go to 1st ring. But it's far better. I watched the video before and solved my problem. Then I searched again to comment. Thumbs uppppp .
Thanks for the comment. There is another video of mine that goes deeper into the front derailleur on my channel. I think its come up as the most watched.
Ive owned a 1991 ridge runner and its equipped with LX components. I have been havingthis chainrub problems on the middle chainring since last year and my LBS cant even remove the noise thats why i felt i was paralyzed when riding my bike when i use the highest gear with the second chainring it was alway rubbing not until I saw this video. It removed it completely! Thank you!
Hey! What's the minimum amount of thread I can leave on the barrel adjuster? I feel mines one screw away from completely coming away from the shifter...
That sounds about right. its good to be aware of that. Most people have no idea they are about to unthread completely. And rightly so, the threads are not visible. Some derailleurs call for a lot of tension, in that case, I would screw the barrel adjuster in all the way and reset the cable tension at the pinch bolt. Not necessarily in that order.
Bike Teacher I ‘m having some issues with the front derailleur on my new bike. Tiagra 3x10. I’m having chain rub when i’m on 2x8, 2x9, 2x10, 3x8, 3x9, 3x10. Also when i’m shifting from middle to big chain ring, chain sometimes gets stuck beteeen inner cage and big ring before settlng in the big ring itself. Derailleur doesn’t move fully outboard where the H limit screw is, hence the chain rub. And i can’t adjust the barrel adjuster as it’s already tight even with just two full turns. I don’t know if the issue here is the fd itself, or the barrel adjuster needs to be reset coz it is already tight with just two turns counter clockwise.
A new bike may need some breaking in. The new housings and ferrule caps need to be seated with tension. You do this by shifting from one end to the other about 10 times, ignore the bad shifting your just braking it in for now. You may also tug or pull on the bare cable with a rag 10 times to seat the cable and housing. This will create slack in the cable, which is what you want. Then you may go back to the cable pinch bolt and loosen the cable. At this time reset the barrel adjuster to about the middle or more. Then pull tension on the cable with fingers only and retighten the cable pinch bolt. Try that
I checked the cable head, i pulled it out and back in again. Not sure if this is how it should be seated correctly, but that’s how it looks now with the cable pinch bolt tightened and on the smallest chain ring. Link to the photo below. Check if it is seated properly. imgur.com/Ckn67oK
The high limit screw may be to tight, not allowing the derailleur enough room to move freely. This is why the shifter feels stiff.Loosen the hight limit screw but only 1/16" to 1/8" at a time. Be patient and do a physical test ride test ride after each adjustment. Anticipate the derailleur throwing the chain off to the crank side if you over do the adjustment.
Vert inspiring video indeed, and straight-forward too. However, my problem is when I fixed the issue of rubbing on the outside of the cage (riding small gears in the back), rubbing occurs on the inside of the cage (riding large gears in the back). Does that mean the limit positions of the cage was set in a rather conservative way by my LBS preventing the chain falling off when shifting?
Sory for the late response, This would be considered "cross chaining". This will be at the extreme if you have three chainrings in the front. The chain line angle is too severe and in most cases noncomplimentary gearing. Your bike is saying it does not like it there. Very common for most bikes. This is one reason why today's bikes are now running two and one chainrings in the front and larger climbing gears in the rear. The limit screw is not the issue here, you may need to choose where you want the rub to occur, i.e. make your adjustment to where you spend the majority of the time. Some components are not going to run at 100% performance, Sometimes you will need to pick and choose and assist the drivetrain system. Thanks
Thanks great video and well explained. I have been trying to resolve problem by adjusting H L so hopefully now I can get it finally adjusted correctly.
Rubbing on the biggest gear or smallest? Or middle? If smallest whil in the biggest in the rear you may loosen the L limit screw 1/16” at a time. Same with the biggest chainring while in the smallest gear in the rear.
@@BikeTeacher rubbing of the chain on the front derailer when using 2 in the (1,2,3) gears and when using 6 and above on the (1,2,3,4,5,6,7,8) gears also chain rub when using gear 3 and gear 8
Sorry mate but I’ve just spent 5 minutes watching you repeat ‘triple chain ring.. that’s three rings’.. followed by you keep pointing at the small sprocket. You then keep jumping from one idea to another Bored and a waste of data
Just want to say thank you for this video far less nonsense and far more helpful than other derailleur videos , it clicked about the importance of the barrel adjuster after this.
