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8 speed Dura Ace shifters(12 posts)

8 speed Dura Ace shifterscurtiso
Apr 5, 2001 8:01 PM
I am finally thinking about switching from downtube to STI shifters for my 8 speed drivetrain, but my LBS only has one source for Dura Ace 8 speed STIs and that guy wants $260 for the set!!! That's more expensive than new 9 speed shifters!! Anyone know where to find NOS Dura Ace shifters so I can join the rest of you in the 21st century?
re: 8 speed Dura Ace shiftersGregJ
Apr 5, 2001 9:52 PM
I would expand your horizons a bit and look for Ultegra 8 STI as well. They were excellent shifters. Look for used in the classifieds or on Ebay, you may find some with light use or NOS. If the price is too high or you can't find a set, consider Ultegra or 105 9-speed, both good products and probably a better upgrade choice for an older bike than DA.
But 7700 STI'sDave Hickey
Apr 6, 2001 3:06 AM
Don't bother with 7400 STI's. Buy new nine speed DA 7700 STI's. They are cheaper and work fine with your DA 8 speed components. If your drivetrain is 8 speed DA, only Dura Ace shifters will work. My current setup is 7700 STI's with 7400(8 speed)components. Another reason to buy the nine speed STI's is you can always upgrade later to 7700 components.

Buy 7700 STI's(nm)Dave Hickey
Apr 6, 2001 3:08 AM
But 7700 STI'sbirdrider
Apr 6, 2001 7:42 AM
If you use a 9 speed shifter with and 8 speed cassette, wont you have one extra shift that will slacken the cable when shifting down, or pull the deraileur into the spokes?

I'm intregued, but you've got to explain this one further.

thanks in advance Dave.
But 7700 STI'sDave Hickey
Apr 6, 2001 10:12 AM
Your correct, you have an extra click, you just don't use it. If you adjust the derailleur limit screws both top and bottom, the derailleur won't move. I have two bikes set up with D/A 9 speed shifters and 8 speed Deraileurs and cassettes. One bike uses 9 speed D/A downtube and the other uses 9 speed D/A STI's. Both work without problem.
Further explanationDave Hickey
Apr 6, 2001 11:37 AM
I just went for a ride at lunch at looked at the rear as I was shifting. With the chain on the smallest cog, the first click does not shift. The second click moves the chain to the next largest cog.etc...Even with the STI in the first position, there is still tension in the cable. It is not slack.
The explanation.....Sydnie
Apr 6, 2001 12:16 PM adjust the low screw on the derailer so the 9th click just doesn't happen.If the low screw is properly adjusted for the 8 speed cassette,you are good to go and the initial position on the shifter corresponds to the small cog.That's how my 9 speed DA barends and 8 speed DA derailer and 8 speed cogset are set up.Works perfectly.
Apr 6, 2001 12:26 PM don't have to buy DA 9 speed shifters, as any shimano 9 speed shifter will work with a 8 speed DA rear derailer to shift an 8 speed shimano cogset,as the cable pull is ith same for all of them.
Sydnie is correctDave Hickey
Apr 6, 2001 2:50 PM
You are correct any 9 speed Shimano STI's will work with 8 speed Dura Ace.
He said he was looking for Dura Ace, I assumed(always gets me in trouble) he wanted Dura Ace.
Apr 7, 2001 7:04 PM
check out a set of rx100's 8sp sti's. They were lighter than both ultegra/shimano 600 and shimano 105 and were barely heavier than the dura ace but will cost far less. If you want it to say dura ace you can buy the dura ace face plate through the quality catalog for a couple dollars. TTFN
rx100-will not workDave Hickey
Apr 7, 2001 7:20 PM
Sorry, but RX100 will not work with Dura Ace 8 speed. Only Shimano nine speed STI's will work with Dura Ace