Indexing / alignment advice
Discussion
Hi all,
Watched all the YouTube vids on this but never seem to get it right!
Currently the 1x set up on my mountain bike happily goes into the biggest ring at the back but then is reluctant to come down the cassette, ‘makes a fuss’ when it’s in gear in the bigger rings until it skips a sprocket and is happier in the smaller ones. Which adjustment screw needs adjusting and in what direction? It’s deore 12 speed if that makes a difference!
Watched all the YouTube vids on this but never seem to get it right!
Currently the 1x set up on my mountain bike happily goes into the biggest ring at the back but then is reluctant to come down the cassette, ‘makes a fuss’ when it’s in gear in the bigger rings until it skips a sprocket and is happier in the smaller ones. Which adjustment screw needs adjusting and in what direction? It’s deore 12 speed if that makes a difference!
mike9009 said:
I find this the easiest way to remember. Looking at the rear of the bike and the cable tensioner. Turn the cable tensioner in the direction you want to move more.
So in your case turn the tensioner clockwise, which will make the gears move from large cog to small cog easier.
Great advice!So in your case turn the tensioner clockwise, which will make the gears move from large cog to small cog easier.
jimmy156 said:
Perfect, thanks!
Glad I asked as I was about to start messing with the limit screws!
Limit screws are for when the derailleur either can’t physically move to the highest or lowest gear despite the cable tension being correct AND / OR when the derailleur pushes the chain beyond the highest and/or lowest cassette sprockets. Glad I asked as I was about to start messing with the limit screws!
mike9009 said:
I find this the easiest way to remember. Looking at the rear of the bike and the cable tensioner. Turn the cable tensioner in the direction you want to move more.
So in your case turn the tensioner clockwise, which will make the gears move from large cog to small cog easier.
I have been working on my own bikes (and friends bikes) for years and I am comfortable with indexing, aligning and tensioning rear mechs....but this is some of the best advice I've heard for doing it. Top tip and well explained. I will definitely be passing that bit of advice on (and claiming it as my own, obviously So in your case turn the tensioner clockwise, which will make the gears move from large cog to small cog easier.
)Assuming limit screws are set correctly, indexing after fitting a new cable is easy.
Put the knurled cable fine adjustment roughly halfway. With the chain on the smallest sprocket, pull the cable as tightly as you can and tighten the cable clamp.
Turn the pedals whilst operating the lever to get the chain to go up to the next sprocket. Keep doing this and turning the knurled adjustment until the change is 'clean'.
Once this is done, all further gear changes up or down should be perfect.
Put the knurled cable fine adjustment roughly halfway. With the chain on the smallest sprocket, pull the cable as tightly as you can and tighten the cable clamp.
Turn the pedals whilst operating the lever to get the chain to go up to the next sprocket. Keep doing this and turning the knurled adjustment until the change is 'clean'.
Once this is done, all further gear changes up or down should be perfect.
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