A
Axeman
Guest
Heres one for you helpful techheads out there.
I have just done partial upgrade from Ultegra 9spd to 10spd on my road
bike (encouraged by a crash that wrecked my 9speed shifters among other
things). So I have changed the minimum I thought required to go to
Ultegra 10spd- shifters, rear derailler, cassette and 10spd chain.
The problem is the new 10spd chain does not like my Ultegra 9spd double
crankset. I am having problems shifting up to the large chainring .
Instead of shifting smoothly onto the large chainring, the chain seems
to ride on top of the chain ring teeth momentarily before meshing, and
sometimes as a result the chain get thrown of the crank completely. As
you can imagine this is very unsettling an potentially very dangerous!
Thinking that it was my front derailler adjustment that was the
problem, I spent much time readjusting the front derailler with no
success. So I gave up and took the bike to my helpful LBS, who also had
a crack at readjusting the derailler. They were also unable to fix the
problem.
So the LBS is telling me that it is the incompatability between the
10spd chain and 9spd crank that is causing the problem. Solution- buy a
new 10spd crank. My existing 9spd crank and chainrings are low mileage
and are in excellent condition.
So what gives here? I know Shimano say's these parts are incompatible,
but I thought this was just BS to trick you into buying more parts. I
was under the impression, and this has been supported by Sheldon Browns
website, that there would be no problem running a 10spd chain on a 9spd
crank.
So can anyone here offer a solution, before I spend a bunch of $$$
buying a new crank that I do not need?
Thanks.
I have just done partial upgrade from Ultegra 9spd to 10spd on my road
bike (encouraged by a crash that wrecked my 9speed shifters among other
things). So I have changed the minimum I thought required to go to
Ultegra 10spd- shifters, rear derailler, cassette and 10spd chain.
The problem is the new 10spd chain does not like my Ultegra 9spd double
crankset. I am having problems shifting up to the large chainring .
Instead of shifting smoothly onto the large chainring, the chain seems
to ride on top of the chain ring teeth momentarily before meshing, and
sometimes as a result the chain get thrown of the crank completely. As
you can imagine this is very unsettling an potentially very dangerous!
Thinking that it was my front derailler adjustment that was the
problem, I spent much time readjusting the front derailler with no
success. So I gave up and took the bike to my helpful LBS, who also had
a crack at readjusting the derailler. They were also unable to fix the
problem.
So the LBS is telling me that it is the incompatability between the
10spd chain and 9spd crank that is causing the problem. Solution- buy a
new 10spd crank. My existing 9spd crank and chainrings are low mileage
and are in excellent condition.
So what gives here? I know Shimano say's these parts are incompatible,
but I thought this was just BS to trick you into buying more parts. I
was under the impression, and this has been supported by Sheldon Browns
website, that there would be no problem running a 10spd chain on a 9spd
crank.
So can anyone here offer a solution, before I spend a bunch of $$$
buying a new crank that I do not need?
Thanks.