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Chainring derailleur and road levers

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Chainring derailleur and road levers

Old 02-28-05, 02:05 AM
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Bizikleto
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Chainring derailleur and road levers

Hi,

Is it possible to combine dual-control integrated road levers with an MTB-like low-mount (brace-ring is below the cage level) front derailleur. I'm trying to combine Shimano Sora levers with the mentioned front derailleur in a frame that an upper-mount derail can't fit in because the seat tube is very ovalized until the lower part of it, past beyond the point where an upper-mount derailleur could be braced to. I haven't been able to find any combination that works: the low-braced derailleurs shift too short for every lever index movement. Maybe I have to use other brands for levers and/or derailleur?

Thanks a million and all the best.
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Old 02-28-05, 08:00 AM
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sydney
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Originally Posted by Bizikleto
Hi,

Is it possible to combine dual-control integrated road levers with an MTB-like low-mount (brace-ring is below the cage level) front derailleur. I'm trying to combine Shimano Sora levers with the mentioned front derailleur in a frame that an upper-mount derail can't fit in because the seat tube is very ovalized until the lower part of it, past beyond the point where an upper-mount derailleur could be braced to. I haven't been able to find any combination that works: the low-braced derailleurs shift too short for every lever index movement. Maybe I have to use other brands for levers and/or derailleur?

Thanks a million and all the best.
Shimano has long said STI shifters and MTB FD are incompatible. I've had my own negative experienes. I recall hearing of sometimes acceptable results by fudging the cable mount at the derailer.
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Old 03-02-05, 03:28 AM
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Bizikleto
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Originally Posted by sydney
Shimano has long said STI shifters and MTB FD are incompatible. [...] acceptable results by fudging the cable mount at the derailer.
Thank you for your reply. Can you extend on "fudging the cable mount"? I don't get the idea. Thank you very much.

By the way, I've found and trimmed to focus on detail this image in the Bikeforums.net from Paddlerx, who doesn't seem to be reachable via e-mail or private message in the forum. It's a 05 Soul Monk cross bike with a what I call "low-brace" chain derailleur.

Antonio.
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Old 03-02-05, 08:17 AM
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Originally Posted by Bizikleto
Thank you for your reply. Can you extend on "fudging the cable mount"? I don't get the idea. Thank you very much.



Antonio.
Attach the cable differenly at the mounting point to change the throw ratio. How or even if you are able to do it may also depend on the indivudal derailer.
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