Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-24-07, 10:38 PM   #1
seriouslysilly
Senior Member
Thread Starter
 
Join Date: Oct 2006
Location: NJ
Bikes:
Posts: 380
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Not able to get chain into big chainring

I'm close to being done building up a frame and just installed the FD with new shift cable.
I currently have an Ultegra 6503 FD and 105 triple brifters.

Now when I try to get the bigger chainrings, I get two clicks to move it to the middle chainring. When I shift some more, I can only get it to click only once more and is not enough to get it to the big chainring. I've been playing with the cables and still no luck.
I've also checked the outer limit screws and it's not it.

All of the drivetrain components are coming from another frame. The chainstay length are a bit different. I'm coming from a 415mm -->418mm. is that a significant difference?

Also I noticed that when it did go to the big chainring and pedaled with my hands, I heard some rubbing noises coming from the rear wheel/RD. I don't hear it when the chain is in the granny or middle ring.
Is this also stemming from the chain length?

Thanks!

Last edited by seriouslysilly; 02-24-07 at 10:47 PM.
seriouslysilly is offline   Reply With Quote
Old 02-24-07, 11:47 PM   #2
Bill Kapaun
Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Bikes: 86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
Posts: 9,267
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 46 Post(s)
Is the chain still on the granny gear on back when you try this.
You're not supposed to cross chain like that.
How many speeds is the cassette?
Bill Kapaun is offline   Reply With Quote
Old 02-25-07, 05:36 AM   #3
seriouslysilly
Senior Member
Thread Starter
 
Join Date: Oct 2006
Location: NJ
Bikes:
Posts: 380
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Bill Kapaun
Is the chain still on the granny gear on back when you try this.
You're not supposed to cross chain like that.
How many speeds is the cassette?
It's a 9-speed.
When I attempt to shift to the big chainring, it's on the middle or high cog.
I try to avoid cross chaining.
seriouslysilly is offline   Reply With Quote
Old 02-25-07, 07:26 AM   #4
iNewton
Senior Member
 
iNewton's Avatar
 
Join Date: Aug 2005
Location: Baie-Comeau, Québec
Bikes: Specialized Roubaix Comp '06
Posts: 600
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Check this out.
http://www.parktool.com/repair/readhowto.asp?id=75
iNewton is offline   Reply With Quote
Old 02-27-07, 03:11 PM   #5
the scout
Senior Member
 
Join Date: Oct 2006
Bikes:
Posts: 71
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Try putting it onto the big ring by pulling on the cable ie not using your levers. If it goes on this way it indicates that it is the cable adjustment.
Cable adjustment is performed by having it set up on the middle chainring and largest rear cog and then adjusting cable so that the chain is as close as possible to the inner cage plate without actually touching
the scout is offline   Reply With Quote
Old 02-27-07, 03:29 PM   #6
thePest
Senior Member
 
thePest's Avatar
 
Join Date: May 2006
Location: Pacific NW
Bikes: none at this time
Posts: 130
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
start at the beginning

The derailleur should be a flat screwdriver head above the big chain ring 1/16". The outside of the cage runs also even with the outside chain ring.

Next DON'T HOOK UP THE CABLE YET! Put your rear derailleur in 1st or the lowest gear. Turn the crank and adjust the "L" so it almost rubs the the chain. Depending how much flex your crank and B/B will have will make the chain rub. This has nothing to do with the adjustment.

Now Click you shiffter all the way to low.

Pull the cable taunt so when you twing it. it moves like a loose gituar string.

The second click is called TRIM which is designed to move the derailleur over just a bit so the chain won't make a groove in you cage.

Here is where you will get stuck... It is OK to bend the derailleur cage!!!. Taking what I use is a cresent wrench. on the INSIDE of the cage. Bend a very small "J" pointing the tip to the larger sprocket, This should do the Job.

Now shift the rear derailleur to the smallest. Click the shifter one more time and adjust the "H" so the outside of the cage almost touches...

May the force be with you
thePest is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 01:07 AM.