I have an all 10sp triple Ultegra set up except my crank which is a 105 triple 9 speed. Model 5503 which is Octalink and 52-42-30 gears. It shifted OK at best to the Big ring. Immed and small went back and forth just fine. I had to set my FD as high as I could on the braze-on to clear the middle ring because the FD is a Ultegra 6603 designed for a 39t middle. I am also using an Ultegra Chain.
I decided to change the middle ring to a 39t Ultegra 10sp. I set my FD acording to the FD directions and I cannot get the chain to climb to the big ring. I also tried tightening and losening the cables, but did not get much better results.
Does the Ultegra 10sp 52t have different pick-ups to make a jump from 39 to 52? Or are the rings closer together? I know the rings on a 10sp are a bit thinner, but if that is it, they would still be the same distance apart.
If my only solution is to buy a 10sp Ultegra crank so be it, but I do not want to spend $ 175.00 if i can avoid it.
Thanks in advance,