Question about Campagnolo Record 10 Rear Derailleur

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Largest cog on a reg. cage campagnolo record 10 rear derailleur

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Posted on Jan 02, 2017

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dunnbiker
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SOURCE: Campagnolo Record 10 sp. short cage rear drlr.+ 13-26 cassette

You don't say if this happens in the BIG ring, small ring or both. If it's just the big ring I'd suspect there isn't enough chain length.

Cross chaining is unnecessary and bad for your drivetrain. I never go more than one cog past the center of my cassette opposite the chainring I use.

http://www.parktool.com/repair/readhowto.asp?id=26

Posted on May 02, 2010

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1 Answer

What does the small screw next to the higher jockey wheel adjust ?


Why limit the question or answer to just one screw?

It's for body tension. Like the B-Screw on other derailleurs.

http://www.parktool.com/blog/repair-help/rear-derailler-adjustments-derailleur

Jun 27, 2011 | Campagnolo Record Carbon 10 Speed

1 Answer

Cannot get rear derailer to work properly 24 inch girls evolution


Don't start messing with the derailleur yet! Make sure your shifting trouble isn't due to something else, such as a warped, dirty, or stretched chain, gummed-up pulleys, crud in the cable housing, trapped cable, or a bent derailleur hanger
Clean the chain and the rear derailleur pulleys. Pull the chain away from each pulley, and turn the pulley to make sure it can move freely. A pulley that offers resistance to turning must be replaced.
Now check the cable to be sure it slides freely. Mud and grit within the cable housing, or on a cable-guide, can keep the derailleur from moving a "full gear" during downshifts. If the cable doesn't slide freely in the housing, you may be able to clean or lube it to restore smooth shifting.
Let the high-gear limit screw. In your highest gear on the shifter, and with the chain on the smallest cog, position the derailleur so the upper pulley exactly matches the teeth of the small cog. Run the chain a bit with the front derailleur in the large ring, adjusting the limit screw until the pulley and the cog seem to match perfectly.

Setting the high-gear (small cog) limiting screw.



Once you're sure the derailleur matches the cog, move it just a whisker (1/8 to 1/4 turn) towards the other cogs. (You may need to readjust a bit if you get chain-skip.)

Closeup of setting the limiting screw.



Now adjust the low-gear limit screw. Shift into the lowest gear (largest cog). If it won't go, loosen the limit screw. With the chain on the largest cog (and the front derailleur in the small chainring), adjust the derailleur so the upper pulley exactly matches the teeth of the large cog.Once it's perfect, turn the limit screw so it moves the derailleur a tiny amount towards the other cogs (1/8 to 1/4 turn usually works).

Setting the low-gear (largest cog) limiting screw.



Now shift to the highest gear (smallest cog). Push the shift lever to downshift one gear (go from the smallest cog to the next-smallest). If it doesn't shift, tighten the cable with the barrel adjuster, 1/2 turn counter-clockwise. Backshift and try again. Continue tightening until it shifts. If it overshifts, going from the smallest cog to the third-smallest, loosen the cable by turning 1/2 turn clockwise. Backshift and repeat until it shifts exactly from the small to the next-smallest cog.

Fine adjustment of tension in the derailleur cable.





Now go to the second-smallest ring. Tighten or loosen the cable slightly, until the outer side plates of the chain are just clearing the third-smallest cog. Shift up and down, fine-tuning until you're satisfied.

Checking the position of the chain on the cogs.





Mar 04, 2011 | Pacific International Pacific Evolution 24...

1 Answer

Campag Chorus medium cage rear mech with 13 - 29 cassette


That's a 16-tooth spread in the rear. The cage can handle 36 teeth of chain length change including the front. That means your highest and lowest chainrings should be within 20 teeth of each other, but I avoid those issues by being careful to find a straighter chain line than anything near a cross-chain, typically not venturing more than one cog past the center opposite the chainring I use. That way I can actually use a shorter chain, too.

http://parktool.com/repair/readhowto.asp?id=64

Read up on the B-screw adjustment

Jun 07, 2010 | Campagnolo Chorus 10 Speed Short Cage Rear...

1 Answer

Campagnolo Record 10 sp. short cage rear drlr.+ 13-26 cassette


You don't say if this happens in the BIG ring, small ring or both. If it's just the big ring I'd suspect there isn't enough chain length.

Cross chaining is unnecessary and bad for your drivetrain. I never go more than one cog past the center of my cassette opposite the chainring I use.

http://www.parktool.com/repair/readhowto.asp?id=26

May 02, 2010 | Campagnolo Record 10 Rear Derailleur

1 Answer

My shimno sora front derailler shifts perfectly to the small and large chain set cogs, but on the middle, the chain rubs along the cage.


Set the rear derailleur to the lowest gear (big cog) and the front to the lowest gear (small chain ring). Disconnect the derailleur cable. Screw in the adjuster for the cable tension all the way (this adjuster is on the shifter of a mountain bike or the down tube of a road bike). Pedal to make sure the chain is not rubbing on the derailleur cage. If it is, adjust the "L" setting on the derailleur until the chain moves by without touching the cage. Now pull taut and reattch the cable and shift the front to the big ring while pedaling. If it does not shift up well or completely, hold the shifter past its normal shift and adjust the "H" screw so that the derailleur allows the shift. Shift into the highest cassette gear and keep pedaling. The chain should not be touching the front derailleur's cage when you pedal. Adjust with the barrel adjuster until the chain moves freely without touching the derailleur cage.

i hope this helps
-matthew

Oct 30, 2009 | Cycling

1 Answer

Problem with chain and gears


Wash, degrease and scrub the chain and derailleurs with a good degreaser (like Simple Green). Dry the chain and relubricate it with an appropriate bike chain lubricant (not oil or WD-40). Shift the derailleurs to the smallest chain ring and cog on the cassette (low front gear, high rear gear) and then loosen the cable at the derailleurs, pull the cables taut and reattach them. If the derailleurs still need adjustment, here is a procedure for it:
Flip the bike over (so you can pedal the bike manually while you shift) and shift the front to the middle chain ring. Shift the rear to the highest gear (small cog). Release the cable from the pinch bolt on the derailleur. Adjust the screw marked "H" on the derailleur until the jockey wheel on the derailleur is aligned perfectly over the small cassette cog. Set the cable adjuster on the derailleur to the middle of its range (find this by screwing it all the way in and then count how many revolutions it makes until it screws out completely. Screw it back in one half of the total revolutions). Reattach the cable and shift to the lowest gear (the biggest cog). Over-shift and hold on the shifter, then adjust the "L" screw on the derailleur until the jockey wheel sits just past the last cog. You have to hold the shifter to do this. Now shift into the middle gear (or one of the two middle gears if the bike has an even number of gears) and adjust the derailleur using the barrel adjuster you previously set to the middle of its range. Adjust it so that the derailleur is sitting perfectly over the appropriate gear. Shift up and down the cassette while pedaling and in every gear, reverse pedal (freewheel) to make sure the chain does not hop. Adjust as necessary until all gears are smooth.
Now the front:
Set the rear derailleur to the lowest gear (big cog) and the front to the lowest gear (small chain ring). Disconnect the derailleur cable. Screw in the adjuster for the cable tension all the way (this adjuster is on the shifter of a mountain bike or the down tube of a road bike). Pedal to make sure the chain is not rubbing on the derailleur cage. If it is, adjust the "L" setting on the derailleur until the chain moves by without touching the cage. Now pull taut and reattch the cable and shift the front to the big ring while pedaling. If it does not shift up well or completely, hold the shifter past its normal shift and adjust the "H" screw so that the derailleur allows the shift. Shift into the highest cassette gear and keep pedaling. The chain should not be touching the front derailleur's cage when you pedal. Adjust with the barrel adjuster until the chain moves freely without touching the derailleur cage.
That should be it, unless there is another mechanical problem causing the missed shifts, like a bent derailleur hanger or damaged teeth on the cassette cogs or a bad derailleur. If it is still problematic, come back for further information.

i hope this helps
-matthew

Oct 26, 2009 | Cycling

3 Answers

Wont change gears 12or3


There should be one or two limiting screws for the front derailleur that you can use to adjust how far out/in the derailleur moves to shift the chain over. You can ask a friend to lift the back end of the bike off the ground while you do the adjusting of these screws and then try shifting the gear while moving the peddles with your other hand.

Aug 21, 2009 | Huffy Womens Mountain Bike - Passion...

1 Answer

Put chaine back on bike


Starting with someone holding the bike with the front of the bike to your right proceed as follows. Shift the rear derailleur down so that it lines up with the smallest cog on the rear. Shift the front derailleur to the smallest cog on the front. This will give you the least resistance to thread the chain. Starting at the rear lay the chain over the rear cog teeth and holding the arm of the derailleur down so that the idler gears are one above the other thread the left end of the chain to the right side of the top idler gear and down through the cage. proceed with the end of the chain to the left side the the bottom idler gear and down . The left end of the chain you just threaded will now meet the right end of the chain which you are about to thread. Don't let the left end slip back the way you came. Take the right end of the chain and thread it through the cage of the front derailleur and over the smallest gear on the front proceeding to your right. It should be sitting in the teeth.Pull the right end of the chain down and arouind to meet the left end of the chain. Since you are asking how to thread the chain I am assuming that it is apart in one long length and not in a continuous loop. Use a twist tie to hold the two ends of the chain together for now. Shift the front derailleur to the largest outside gear taking care to lift the chain off the teeth of the small gear and place them on the large gear as you are shifting. Shift the rear derailleur to the largest inside gear(cog) on the back wheel taking care to move the chain again as you shift. The chain should be in a continuous loop with no twists in it that goes as I described through both derailleur cages and over the largest gear on the back and the largest gear on the front. Now the tricky part. You may need someone to help. You have to pull the chain with your left hand to move the rear derailleur cage all the way forwardand with the twist tie removed bring the right end of the chain all the way back to the rear along the left end of the chain to measure how long it would be joined up in that position. Note where the chain would meet if tight. You will have excess chain on one end. From where the ends meet give yourself two links on the excess end of the chain and where the ends will join now is the correct length. You will need a chain (break) tool to force the pin out on the excess end of the chain to remove the excess length.You have two choices for joing the chain. You can buy a pin that you can join the two ends with and when it is forced through to the mark on it with the tool you then snap the end off with a pair of pliers or you can buy a joiner link that comes in two halves that fit through the holes on opposite sides of the chain and then snap together. The forward action of pedalling will make the final snap to hold the link on. If you decide on the latter method you will notice that you will have to remove another pin from the length to get the side plates off the chain and expose both holes. This is a complicated explanation and if you haven't done this before and you don't have a chain tool it is far easier to get a bicycle shop to install a new chain as the actual chain has to be a direct match in manufacturing to properly fit your bike. If you decide to do this yourself, take the old chain in and get a new one. Make sure it hasn't been shortened as the old chain has probably been stretched and the proper method of measuring the new one is by using the bike itself not just laying the new one and the old one side by side. Good Luckand hope this helps.

May 16, 2009 | Huffy Alpine 24 Youth All-Terrain Bicycle

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