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can you trim front derailure with sti/ergo(7 posts)

can you trim front derailure with sti/ergopogo
Feb 26, 2002 7:24 AM
I am finally upgrading from downtube shifters this year and I am wanting to build up a frame with mid level components (that's all I can afford). Currently I can easily "trim" my front derailure so that I can use all of the available gears and to eliminate drivetrain noise. Can this be done with either STI or Ergo shifters. I am looking at either a 105 or a Veloce group. This is not a shimano vs. Campy debate, but does one group give the ability to trim the front derailur better. If these mid range groups can't, will going up to Ultegra or Centraur give this ability. Thanks for any insight and experience you can offer.
Clear Campy advantageSpoke Wrench
Feb 26, 2002 7:44 AM
105 will give you a couple of trim positions. Mirage isn't indexed so much as a brake lever version of a friction shifter. You get multiple trim positions across the whole range of the shifter.
re: can you trim front derailure with sti/ergoslow-ron
Feb 26, 2002 8:01 AM
I only have experience with Campy so I can't comment on the Shimano but the Campy Ergo's trim very well on my 10 speed set up. Just a little tap of the lever eliminates chain rub on the front as I shift through the cogset on the rear. Infact, I catch myself in gear selections that I shouldn't be in because the front shifter is capable of making the adjustments with the chain line.

Incidentaly, I've seen really good prices on mid range Campy group sets at zonabici.com. Full Veloce for about $400 or Daytona for about the same minus the hubs.

good luck.
105 trimDCP
Feb 26, 2002 12:42 PM
I have '00 105 double. The trim feature gives you two positions in each ring. You activate it with a partial throw of the lever (one click). It is, however, difficult to use and results in many unintended shifts. This is one instance where indexing is not better and the friction approach of the Campy design sounds better, but I have not used it.
re: can you trim front derailure with sti/ergoChen2
Feb 26, 2002 2:01 PM
Seems to me that a double ring set should not need trimming. I can use any combination on my 9-speed D-A except 39/12 with no chain rub, and no need for the 39/12.
Triples are another problem.
-Al
Shouldn't be a problemDrPete
Feb 26, 2002 2:25 PM
I have a 105 double setup right now, and the only time I get significant chain rub is if I shift to the 39/11 and 39/12, and there's really no need to be there. The best advice I can give is to make sure your front derailleur is set up very precisely, with less than 1mm between the chain and the inner part of the cage with the chain on the small ring and the biggest cog. That way you'll squeeze out as much spread as you can in your little ring. And, for what it's worth, 105 is a great midrange group and does a great job. It's been with me on a good few centuries now. Good luck!
re: can you trim front derailure with sti/ergohayden
Feb 27, 2002 6:33 AM
Go with the campy if you are looking to trim. The Ergo shifters allow many positions for the front derailur. Almost like having friction. True, your front der. should be adjusted well, but it sure makes it nice when its a smidgen off, to be able to just trim it out rather than listen to it grind the whole ride till you can get home and adjust it to perfection.