I want to set my everyday/sport-tourer up with cable splitters so that I can switch between drop bars w/ bar-end shifters and mountain bike bars with mountain bike shifters. Therefore, I want to replace my 105 front derailleur with an XT so that I can use LX or XT shifters on the mountain bike bars without compatibility problems. The problem is that the XT derailleur tops out at a 48 tooth large chain ring and I have a 50 tooth large chain ring. Can I get away with a two-tooth difference or am I asking for trouble with the shifting of the LX/XT shifters? Also, anyone with experience with such a set-up got any advice on the best way to set it up? Thanks in advance.
I want to set my everyday/sport-tourer up with cable splitters so that I can switch between drop bars w/ bar-end shifters and mountain bike bars with mountain bike shifters. Therefore, I want to replace my 105 front derailleur with an XT so that I can use LX or XT shifters on the mountain bike bars without compatibility problems. The problem is that the XT derailleur tops out at a 48 tooth large chain ring and I have a 50 tooth large chain ring. Can I get away with a two-tooth difference or am I asking for trouble with the shifting of the LX/XT shifters? Also, anyone with experience with such a set-up got any advice on the best way to set it up? Thanks in advance.
Rob Strickland
Is there a reason that you need an LX/XT front derailleur rather than the 105? Is this a known problem, that a road front derailleur and a mountain front derailleur won't index with the other type of shifter? If so, won't you have shifting problems when you go back to the road shifters?
I have assumed that the front derailleurs were like the present rears, where the mountain and road lines are interchangeable when it comes to indexing.
"Robert Strickland" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
Hi all,
I want to set my everyday/sport-tourer up with cable splitters so that I
can
Quoted message said:
switch between drop bars w/ bar-end shifters and mountain bike bars with mountain bike shifters. Therefore, I want to replace my 105 front
derailleur
Quoted message said:
with an XT so that I can use LX or XT shifters on the mountain bike bars without compatibility problems. The problem is that the XT derailleur tops out at a 48 tooth large chain ring and I have a 50 tooth large chain ring. Can I get away with a two-tooth difference or am I asking for trouble
with
Quoted message said:
the shifting of the LX/XT shifters? Also, anyone with experience with such
a
Quoted message said:
set-up got any advice on the best way to set it up? Thanks in advance.
Is there a reason that you need an LX/XT front derailleur rather than the 105? Is this a known problem, that a road front derailleur and a mountain front derailleur won't index with the other type of shifter? If so, won't you have shifting problems when you go back to the road shifters?
I have assumed that the front derailleurs were like the present rears, where the mountain and road lines are interchangeable when it comes to indexing.
The problem is that bar-con shifters can shift road or mountain front derailleurs but mountain shifters won't shift road front derailleurs. Therefore, I solve my problem most simply by using a mountain front derailleur. The hitch is that I've got road cranks with a larger big chain ring than the mountain derailleurs are designed for. So, your assumption about front derailleurs is a bad assumption, although it does hold true for rear derailleurs. Thanks for the input though.
Is there a reason that you need an LX/XT front derailleur rather than the 105? Is this a known problem, that a road front derailleur and a mountain front derailleur won't index with the other type of shifter? If so, won't you have shifting problems when you go back to the road shifters?
I have assumed that the front derailleurs were like the present rears, where the mountain and road lines are interchangeable when it comes to indexing.
The problem is that bar-con shifters can shift road or mountain front derailleurs but mountain shifters won't shift road front derailleurs. Therefore, I solve my problem most simply by using a mountain front derailleur. The hitch is that I've got road cranks with a larger big chain ring than the mountain derailleurs are designed for. So, your assumption about front derailleurs is a bad assumption, although it does hold true for rear derailleurs. Thanks for the input though.
Rob
Note that Sheldon Brown can hook you up with the unusual NOS "problem solver" derailleurs he can use to make road/MTB hybrid indexed front setups work with each other:
