Chain rubbing on derailer on new bike. what should i do?
04-09-13, 12:40 PM
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Chain rubbing on derailer on new bike. what should i do?
Hi all, i hope someone can advise me here of what i should do.
I bought a new bike from Halfords
and i have had it back in the shop 4 times now trying to get this problem resolved. The bike i bought is this one - https://www.halfords.com/webapp/wcs/s...egoryId_165710
i love the bike but the chain rubbing is loud and annoying. It used to make this noise when i had the gears in the 4 smallest rings, but now it only does it in the 2 smallest rings. i really like to use these gears especially going down hills and the noise is really annoying me.
Any tips on what i should do?
I bought a new bike from Halfords
and i have had it back in the shop 4 times now trying to get this problem resolved. The bike i bought is this one - https://www.halfords.com/webapp/wcs/s...egoryId_165710i love the bike but the chain rubbing is loud and annoying. It used to make this noise when i had the gears in the 4 smallest rings, but now it only does it in the 2 smallest rings. i really like to use these gears especially going down hills and the noise is really annoying me.
Any tips on what i should do?
04-09-13, 12:44 PM
#2
Throw the stick!!!!
What gear are you in on the front? If in the small front ring then rubbing in the two or three smallest gears is pretty common. If in the large front gear then rubbing in the biggest two or three gears is pretty common.
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04-09-13, 12:48 PM
#3
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are you perhaps cross chaining? are you trying to do 34-12 or do you mean big ring up front and smallest two in the back cause rubbing?
04-09-13, 02:04 PM
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aka Phil Jungels
Are you sure thast the chain is routed correctly? Not running over any non rolling parts?
04-09-13, 02:11 PM
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Remove front derailleur and discard.
Emotional, spiritual and technical support for this may be found in 1x10 thread.
Emotional, spiritual and technical support for this may be found in 1x10 thread.
Last edited by Gerry Hull; 04-09-13 at 02:14 PM.
04-09-13, 02:21 PM
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You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.
04-09-13, 02:26 PM
#9
You Know!? For Kids!
Read this and get back with us. I fear, as other have said, you are trying to use a gear combination you should not be using.
https://www.bicyclechainrings.com/crosschaining.html
https://www.bicyclechainrings.com/crosschaining.html
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04-09-13, 02:39 PM
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To ensure no front derailleur rub, do the following:
1. Set the correct cage height of the front derailleur, no more than 3 mm above the big chain ring:
2. Align the front derailleur cage with the big chain ring:
3. Set the low limit screw by putting the gears in the small front-big rear combination and adjusting the screw until it barely clears the chain:
4. Set the high limit screw so FD just clears the chain in the big front-small rear combination:
5. Adjust the cable tension to allow proper "trim" (trim: use of intermediate click setting of front derailleur lever to avoid rubbing).
Here's how I do this, and it's goof proof:
a. Make sure the front derailleur's high set screw is properly set (see step 4 above).
b. Adjust the front derailleur's cable tension so that shifting to the big ring just barely moves the derailleur against the high set screw (but not too much, or the cable will become too tight).
If steps a. and b. were done correctly, the trim setting will also be correct.
I can teach a monkey how to do this in about 15 minutes (and I have
). The key is to be systematic and take it one step at a time.
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Ride, Rest, Repeat. ROUVY: terrymorse
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04-09-13, 02:48 PM
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Pls post vid of self teaching monkey, thx
04-09-13, 03:05 PM
#15
You Know!? For Kids!
What will the monkey do if the bike has a banana seat on it?
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04-09-13, 03:09 PM
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04-09-13, 05:28 PM
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Heh Terry, I would be happy to bring my bike in and see if you can get small-small to not rub on my triple (26-11 would be the combination in question). No one has been able to get more than 5 gears of non rub in the back while on the granny ring, and to be honest I don't need more, but some combinations will always rub, no matter how smoove you think you are at derailleur adjustment.
I will agree, however, if the front is a standard double or a compact, there should be no rubbing
I will agree, however, if the front is a standard double or a compact, there should be no rubbing
04-09-13, 06:03 PM
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Chain behavior is disturbingly hypothesis-resistant, if not altogether immune.
I hope that would help Homer solve his nagging little problem.
But I am afraid intervention on a grander scale will be required.
I propose that the best minds on the forum make immediate travel arrangements to Homer's city of residence. Working together, it could be prearranged what tools, manuals, code books, parts and machinery may be required. And perhaps it is overkill, but it is always good to have a mental health professional on-hand. All this may come at some expense, but one shouldn't cut corners when a man's well-being is at stake.
I hope that would help Homer solve his nagging little problem.
But I am afraid intervention on a grander scale will be required.
I propose that the best minds on the forum make immediate travel arrangements to Homer's city of residence. Working together, it could be prearranged what tools, manuals, code books, parts and machinery may be required. And perhaps it is overkill, but it is always good to have a mental health professional on-hand. All this may come at some expense, but one shouldn't cut corners when a man's well-being is at stake.
Last edited by Gerry Hull; 04-09-13 at 06:09 PM.
04-09-13, 06:11 PM
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04-09-13, 06:12 PM
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A properly adjusted bike will not rub in any gear, including the big-big and the small-small combinations.
To ensure no front derailleur rub, do the following:
1. Set the correct cage height of the front derailleur, no more than 3 mm above the big chain ring:
2. Align the front derailleur cage with the big chain ring:
3. Set the low limit screw by putting the gears in the small front-big rear combination and adjusting the screw until it barely clears the chain:
4. Set the high limit screw so FD just clears the chain in the big front-small rear combination:
5. Adjust the cable tension to allow proper "trim" (trim: use of intermediate click setting of front derailleur lever to avoid rubbing).
Here's how I do this, and it's goof proof:
a. Make sure the front derailleur's high set screw is properly set (see step 4 above).
b. Adjust the front derailleur's cable tension so that shifting to the big ring just barely moves the derailleur against the high set screw (but not too much, or the cable will become too tight).
If steps a. and b. were done correctly, the trim setting will also be correct.
I can teach a monkey how to do this in about 15 minutes (and I have). The key is to be systematic and take it one step at a time.
To ensure no front derailleur rub, do the following:
1. Set the correct cage height of the front derailleur, no more than 3 mm above the big chain ring:
2. Align the front derailleur cage with the big chain ring:
3. Set the low limit screw by putting the gears in the small front-big rear combination and adjusting the screw until it barely clears the chain:
4. Set the high limit screw so FD just clears the chain in the big front-small rear combination:
5. Adjust the cable tension to allow proper "trim" (trim: use of intermediate click setting of front derailleur lever to avoid rubbing).
Here's how I do this, and it's goof proof:
a. Make sure the front derailleur's high set screw is properly set (see step 4 above).
b. Adjust the front derailleur's cable tension so that shifting to the big ring just barely moves the derailleur against the high set screw (but not too much, or the cable will become too tight).
If steps a. and b. were done correctly, the trim setting will also be correct.
I can teach a monkey how to do this in about 15 minutes (and I have
). The key is to be systematic and take it one step at a time.Robert
04-09-13, 06:15 PM
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04-09-13, 06:25 PM
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