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ill just have to accept the fact that certain gear ratios front derailer rubs

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ill just have to accept the fact that certain gear ratios front derailer rubs

Old 04-20-11, 02:42 PM
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cervelo4me
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ill just have to accept the fact that certain gear ratios front derailer rubs

im in certain gears and the front drealier seems to have chain rub.been adjusted 5 times at lbs maybe the fact is i should not be in those gears together .im referring to rear cassette and front cassette.any ideas?again its been adjusted 5 times
 
Old 04-20-11, 03:08 PM
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As long as you're talking bout cross chaining, it sounds normal to me. You don't necessarily have to avoid those combos, just don't stay in them very long.
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Old 04-20-11, 03:31 PM
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So I take it you're now running the replacement Force FD?

Yeah, SRAM doesn't seem to handle the FD as well as Shimano IMO. What I mean, is Shimano brifters seem to have 3 clicks so you can kinda micro-adjust the position of the FD relative to the chain ring (either slightly left, dead-on, or slightly right). SRAM is like dead-on. At least that is my experience with SRAM in the last 5 months I've been using it. If, there is something I'm missing, please let it be known.
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Old 04-20-11, 04:13 PM
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You are cross-chaining, don't do it.

for instance, you should not be in your little ring in front and little ring in back, that will cause rub. besides, you can get that gear ratio without causing the rub by going into the big ring. Do you have a compact crank? Not saying that this will solve your problems but it's something you should consider if you don't have it already.
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Old 04-20-11, 04:38 PM
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You aren't supposed to do it but all modern groups should have no problem cross chaining. I've never run little/little but I've done big/big a few times and I've had no problem shifting in and out of it. I have SRAM Force Compact all around.
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Old 04-20-11, 04:42 PM
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Originally Posted by sdgrannygear View Post
You are cross-chaining, don't do it.
This. Most people that have issues with chain rub on the FD and/or short chain life are always cross chaining. As a general rule, when in the large chainring, stay out of the two or three largest cogs in back, and when in the small chainring, stay out of the two smallest cogs. You chain doesn't like it and you'll probably rub on the FD cage.

Also, did anyone at the shops think to check the cable housing? Extreme bends or too much housing can cause issues with cable pull.
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Old 04-20-11, 05:27 PM
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Originally Posted by robertkat View Post
This. Most people that have issues with chain rub on the FD and/or short chain life are always cross chaining. As a general rule, when in the large chainring, stay out of the two or three largest cogs in back, and when in the small chainring, stay out of the two smallest cogs. You chain doesn't like it and you'll probably rub on the FD cage.

Also, did anyone at the shops think to check the cable housing? Extreme bends or too much housing can cause issues with cable pull.
they checked it and adjusted it look its simple i have to learn the do and dont of cogs to avoid that sound of the chain rubbing on the front derailer.its just for 3300.00 i dont want hear a thing no matter where im gearing but reality says it just doesnt work that .i just cant stand that sound .i have a force front derailer and everything else on my cervelo r3 that is only 40 days old is rival.
 
Old 04-20-11, 05:42 PM
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sdgrannygear
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Originally Posted by cervelo4me View Post
they checked it and adjusted it look its simple i have to learn the do and dont of cogs to avoid that sound of the chain rubbing on the front derailer.its just for 3300.00 i dont want hear a thing no matter where im gearing but reality says it just doesnt work that .i just cant stand that sound .i have a force front derailer and everything else on my cervelo r3 that is only 40 days old is rival.
If the sound of your drive train is bothering you, a) it's not properly adjusted, b) you aren't using the proper gear ratios or c) you aren't going fast enough for the wind to cancel out the sound of the drive train. Yeah, spending 3300 is a lot of cash and so you want all the amenities and everything to be perfect, it never is. Think of it as driving a stick shift car. There is a right and a wrong way to do it. You just need to learn how it's done to get the full performance out of your car. Reminds me of Kobe buying his wife a Lamborghini and then having it converted to auto. Gawd damn.

Bottom line: Don't be that person. Learn how to ride your nice expensive bike properly.
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Old 04-20-11, 06:00 PM
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Originally Posted by sdgrannygear View Post
If the sound of your drive train is bothering you, a) it's not properly adjusted, b) you aren't using the proper gear ratios or c) you aren't going fast enough for the wind to cancel out the sound of the drive train. Yeah, spending 3300 is a lot of cash and so you want all the amenities and everything to be perfect, it never is. Think of it as driving a stick shift car. There is a right and a wrong way to do it. You just need to learn how it's done to get the full performance out of your car. Reminds me of Kobe buying his wife a Lamborghini and then having it converted to auto. Gawd damn.

Bottom line: Don't be that person. Learn how to ride your nice expensive bike properly.
your condescending but your right.kobe had no choice the wife was gonna take half.by the way if kobe was innocent why did he pay that girl in colorado to go away?just asking.we all know why
 
Old 04-20-11, 06:04 PM
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First thing you have to do is figure out what gear combo is causing you to experience chain rub. If it's in the extreme cross-chain gears, as others have suggested, I wouldn't worry about it. You'll learn from experience to avoid those gears. On the other hand, if it's rubbing when you're NOT cross chaining, I strongly suggest you find a new mechanic, because the problem is very fixable.
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Old 04-20-11, 06:06 PM
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Originally Posted by cervelo4me View Post
your condescending but your right.kobe had no choice the wife was gonna take half.by the way if kobe was innocent why did he pay that girl in colorado to go away?just asking.we all know why
You're either a Kobe fan or a Shack fan. I'm a Shack fan. I think it's like choosing between Ginger or Maryann, if you have any idea who they are.
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Old 04-20-11, 06:08 PM
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ginger of course
 
Old 04-20-11, 06:13 PM
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With Sram, the little chainring is for climbing and the big chainring is for cruising. You shouldn't be trying to mix the 2 so, when in the small chainring use the upper half of the cogset. When in the big chainring use the lower half of the cogset.
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Old 04-20-11, 06:44 PM
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Originally Posted by cervelo4me View Post
ginger of course
Ginger was a bimbo.
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Old 04-20-11, 10:25 PM
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What's wrong with bimbos?
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Old 04-21-11, 12:26 AM
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Originally Posted by cervelo4me View Post
your condescending but your right.kobe had no choice the wife was gonna take half.by the way if kobe was innocent why did he pay that girl in colorado to go away?just asking.we all know why
Yeah my post was a little condescending, my bad. Anyway, kobe could easily be in jail right now and the reason why he isn't is pretty obvious. I've never liked kobe, he's always been a prima donna who never admits to the stupid choices he's made t. He's always been enabled so it's not completely his fault I guess.
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Old 04-21-11, 11:22 AM
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Originally Posted by GP View Post
What's wrong with bimbos?
Nothing. I'll take both.
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Old 04-21-11, 03:00 PM
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Originally Posted by snowman40 View Post
Nothing. I'll take both.
No thanks, I'm on a diet

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