Kahuna
Forum Admin
Reged: 12/11/03
Posts: 162
Loc: Maui, Hawaii
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Anyone else notice stiff and clunky performance of the new DA 10-speed front derailler? I just did my first install of a 7800 group and was shocked at the difference in feel between the front and rear derailler action. The rear derailleur shifts smooth as silk and the levers move with ease. However both the large and small levers for the front derailleur take substantially more effort to move. Worse yet, when I move the cage from the big chainring to the small ring, the darn thing pops with a "bang" that's violent enough to vibrate my entire frame.
The cables are routed correctly without binding or interference. What on earth could be causing this?
-K
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Jack_brunk
friend
Reged: 12/24/03
Posts: 41
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I have had no issues with my DA-10 FD. I can't quite believe how quiet and effortless it shifts from small to the big ring. It shifts much easier that any of my Campy 10 FD. I have a new DA-10 setup being installed on a new Kirk frame and I selected the DA-10 again because of the ease of shifting. I am beginning to sway to the DA-10 side on all future builds. This is coming from a full on Campy guy. In all fairness, I like both systems and could live with either one.
Jack
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Kahuna
Forum Admin
Reged: 12/11/03
Posts: 162
Loc: Maui, Hawaii
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Jack,
OK that's encouraging but then I need to ask what's the secret to getting it working so smooth? Did you install your DA-10 yourself?
I'm gonna go home and try re-cabling the FD again, this time paying careful attention to the instruction sheet (need a darn magnifying glass to read the thing - a sure sign I must be getting old) and make sure I have the limit screws and cable tension set right. That's the only thing I can think of.
-K
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Jack_brunk
friend
Reged: 12/24/03
Posts: 41
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Kahuna,
I let the experts at my local LBS install anything and everything on any of my bikes. That way there can never be any mistake as to who may have messed something up. So far they are batting a 1000 percent (no screw ups).
Jack
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TheMightySkunk
journeyman
Reged: 12/26/03
Posts: 82
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Jack:
I live on the same small island as Kahuna. Trust me, the LBS is not an option here. You also can't get a car properly serviced, you can't find a decent plumber, and the medical care is about the level of Haiti's. It's all part of the "paradise tax".
For bikes, it's either D.I.Y., or take up golf.
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"I haven't failed. I've just managed to find 100,000 ways that don't work"
--Albert Einstein
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Lon
sage
Reged: 12/20/03
Posts: 595
Loc: Pittsburgh, PA
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Let us know once you read the directions and start over from scratch. My bet would be on it setting up differently than it has in the past. There are all sorts of unhappy people with D/A Triples because they set up differently and a lot of local shops don't bother to read the directions.
Good luck.
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Kahuna
Forum Admin
Reged: 12/11/03
Posts: 162
Loc: Maui, Hawaii
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Well after installing the chain, trimming another inch off the cable housing, re-threading the cable and making sure there was no binding, making sure the cable tension was just right and adjusting the limit screws, things seem to be working much better.
The 7800 front derailleur does move with a definite "pop" from the release of the spring tension, but it's nowhere near as noisy or violent as it was before I made the adjustments. In fact when I took the bike out for a test ride, it's not only smoother, but the lever provides just enough feedback so as to not feel mushy or loose. No nasty bang or vibration felt in the crank. Just a solid precice click. In addition, the FD trim adjustments work perfectly making the whole setup a joy to use. Compared to my intial fear, this was a pleasant surprise. I was skeptical since I've been a devout Campy Record and Chorus 10 user for the past several years and as you might imagine, Campy can be a tough act to follow. The new Dura Ace 7800 10-speed has exceeded my expectations both in terms of function and design.
Aloha,
-K
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Dave_Thompson
prophet
Reged: 12/19/03
Posts: 719
Loc: Spokane, Washington
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Quote:
Kahuna wrote:
......I've been a devout Campy Record and Chorus 10 user for the past several years and as you might imagine, Campy can be a tough act to follow.......
Aloha,
-K
Welcome, Kahuna, to the dark side!
--------------------
Steel lover, but then I like Ti with carbon too.
Licensed bike geek.
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Kahuna
Forum Admin
Reged: 12/11/03
Posts: 162
Loc: Maui, Hawaii
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Dave,
You mean welcome back to the dark side! 
<heh, heh>
-K
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victoryfactory
new member
Reged: 12/24/03
Posts: 1
Loc: NYC
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Kahuna;
Thanks for the report on your DA-10 fr.deraileur install.
I'm wondering if the slightly clunky performance on my DA-9 F.D. can be improved by reading the directions as well? (That'll be a first for me!)
VictoryFactory, who don't need no stinkin' directions
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Lon
sage
Reged: 12/20/03
Posts: 595
Loc: Pittsburgh, PA
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Gee I thought Campy was the dark side... 
I would not be surprised if your D/A 9 would improve. Shimano is much more delicate in setting up in the front than Campy. Don't forget Campy is not a true index in the front. It is what they have called retro friction. Of course this has the advantage to working with any crank.
Shimano is always pushing the envelope to get its parts to only work the best with all Shimano. From what I understand D/A 10 is even more so like that.
Don't forget too that Shimano reduced the tension of the spring of its rear derailleurs in mt. groups so Grip Shift would not work nearly as well. This is back in the mid 90's when Grip Shift was starting to get a foothold in the marketplace. That is a primary reason why Sram started to develop its own rear derailleur. Gee do you think money could be the reason that Shimano did that?
Happy riding!
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Kahuna
Forum Admin
Reged: 12/11/03
Posts: 162
Loc: Maui, Hawaii
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O' Mighty One,
You certainly got the paradise tax thing right. I'd like to add the problem isn't that our LBS' necessarily does a *bad* job every time so much as the idea of leaving my expensive custom frame at any shop just gives me the heebie-jeebies.
Besides, I'm one of those who enjoys bike mechanics almost as much as the bike itself.
Say, did I ever tell you about the time I brought a pair of Rolf wheels down to South Maui to get the hub bearings re-seated? Duane takes the rear wheel puts it on the bench and proceeds to wail on the hub with a mallet. Not lightly mind you, but as as hard as you could possibly swing a hammer. I was literally cringing with each tremendous bang until I finally had enough and yelled "STOP"! I left feeling as though my poor wheel had just been prison raped.
Anyway, I like to do my own wrenching.
Aloha,
-K
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garygromet
friend
Reged: 01/28/04
Posts: 36
Loc: Miami, FL, USA
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Living in pastoral tropical paradise allows you all the time you need to D.I.Y.
How many miles of roads are on Maui?
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Kahuna
Forum Admin
Reged: 12/11/03
Posts: 162
Loc: Maui, Hawaii
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Garygromet, if this weren't so sadly untrue, I wouldn't bother responding but the truth is just the opposite. The cost of living and lack of jobs (well, anything more advanced than waiter, maid, surf instructor, Etc) are rare and means that many people have to hold two or more jobs just to buy their $7 boxes of cerial, $6 cartons of milk, and $2.37/gal gasoline. Well, ok I overlook the fact that we have Costco and there's savings to be had, but I'm not exaggerating about the job situation. The banana republic known as Hawaii is one step better than many 3rd world countries as far as professional services, jobs, public education, and infrastructure goes. Some islands like Maui are getting better but we still have a long way to go. There were legit reasons why Business Week or Money Magazine (I forget which) labeled Hawaii "An economic basket case" last year. However, I digress.
Give me a week where I don't have to work 80 or 100 hours and then I'll feel like I'm on vacation. Speaking of which, one of these years I'm going to take a 1-week vacation right here. Until that time comes, like my friend The Mighty Skunk says, it's all part of the paradise tax.
-K
P.S. Great roads here. Not sure how many miles but some truly fabulous rides with awesome terrain. Check out the ride descriptions and photos at http://www.gocyclingmaui.com/
Quote:
garygromet wrote:
Living in pastoral tropical paradise allows you all the time you need to D.I.Y.
How many miles of roads are on Maui?
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