Road Cycling - Dura Ace Rear Derailleur question...

I was ordering up a dura ace rear derailleur and was faced with the option of the 7700 ss or 7700 gs - if I want to run a 12-27 nine speed cassette which one do I need? You guys are smart so this one should be easy.

Note: no campy vs. shimano rants allowed!

ShimaNO sucks. Use Campy instead.


PS Actually, I don't know, I just thought I'd toss that out there.
PPS Notice my clever capitalizing of the final to letters in "Shimano," signifying that "NO, you shouldn't use ShimaNO." Haha, pretty witty, eh?

The final TWO letters, even.

Forgive me, it's late.

ShimaNO sucks. Use Campy instead.


PS Actually, I don't know, I just thought I'd toss that out there.
PPS Notice my clever capitalizing of the final to letters in "Shimano," signifying that "NO, you shouldn't use ShimaNO." Haha, pretty witty, eh?


Now why is that? I mean shifters, cranks and brakes are there to do a job. Their purpose is not primarily to look pretty or to impress your friends. Shimano offers a wide range of good functional components at affordable prices. I have used Shimano gear for years and it has worked fine. I have nothing against Campagnola. They make fine stuff from everything I have heard but Shimano does tend to be cheaper. The thing is that most people don't plunk down enough cash on their first decent bike to ride Campy. So an all Campy bike world would probably have quite a few fewer cyclists.

Now why is that? I mean shifters, cranks and brakes are there to do a job. Their purpose is not primarily to look pretty or to impress your friends. Shimano offers a wide range of good functional components at affordable prices. I have used Shimano gear for years and it has worked fine. I have nothing against Campagnola. They make fine stuff from everything I have heard but Shimano does tend to be cheaper. The thing is that most people don't plunk down enough cash on their first decent bike to ride Campy. So an all Campy bike world would probably have quite a few fewer cyclists.


I intended that post to be sarcastic, and thought my PPS drove that home fairly well, but I guess not. So yeah, it's sarcasm. Sorry that wasn't clear. I honestly think that Shimano makes good components, I just happen to prefer Campy. I think it's dumb to say that one is great and the other crap, when they both function admirably. I was just poking fun at the people who DO get into huge arguments over which is better. Hope that clears everything up.

I was ordering up a dura ace rear derailleur and was faced with the option of the 7700 ss or 7700 gs - if I want to run a 12-27 nine speed cassette which one do I need? You guys are smart so this one should be easy.

Note: no campy vs. shimano rants allowed!

Are you running a double crank or triple crank? I'm running 12-27 with a 53/39 double crank and the RD-7700SS without problems. If you're running a triple crank then you'll need the GS.

ShimaNO sucks. Use Campy instead.


PS Actually, I don't know, I just thought I'd toss that out there.
PPS Notice my clever capitalizing of the final to letters in "Shimano," signifying that "NO, you shouldn't use ShimaNO." Haha, pretty witty, eh?




It was mariginally funny BEFORE you tried to explain it. ;)

I was ordering up a dura ace rear derailleur and was faced with the option of the 7700 ss or 7700 gs - if I want to run a 12-27 nine speed cassette which one do I need? You guys are smart so this one should be easy.

Note: no campy vs. shimano rants allowed!

You've probably had your question answered by now, but just to clarify the 7700 GS derailleur uses larger pulley's (13 tooth vs 11 tooth). This gives the tensioner more chain wrap capacity without running a longer cage.

It's primarily intended for the Dura-Ace triple crankset, however it will work just as well with double cranksets.

It has the advantage of running quieter than the standard derailleur (the larger diameter pulleys spin slower), allows good ground clearance, and maintains quick shifting even with a triple setup.

(sounds good in theory anyways, I haven't actually used one)

I've studied this because I plan to retrofit 13 tooth pulleys on some older derailleurs that don't have enough chain wrap (i.e. XTR 8 speed). The little tab that supposedly keeps the chain from jumping off will need to be nuked (cut off).

It was mariginally funny BEFORE you tried to explain it. ;)

i would disagree. i think it was the explaining that actually made it funny, and conveyed the remark in the tone in which it was rendered. without said explanation, it would've been perceived as a sincere attempt to spark a shimano v. campy debate. and of course, as entertaining as those are, it clearly was not the intent of the poster. therefore, i stand by my conclusion that the explanation was, in fact, witty. it actually is what made me laugh in that post.

(i'm hoping someone will read this post in the same long-winded-explanation-intended-as-humourous- commentary-then-lost-by-explaining-the-need-for-explanation-and... *sigh*)

You've probably had your question answered by now, but just to clarify the 7700 GS derailleur uses larger pulley's (13 tooth vs 11 tooth). This gives the tensioner more chain wrap capacity without running a longer cage.

It's primarily intended for the Dura-Ace triple crankset, however it will work just as well with double cranksets.

It has the advantage of running quieter than the standard derailleur (the larger diameter pulleys spin slower), allows good ground clearance, and maintains quick shifting even with a triple setup.

(sounds good in theory anyways, I haven't actually used one)

I've studied this because I plan to retrofit 13 tooth pulleys on some older derailleurs that don't have enough chain wrap (i.e. XTR 8 speed). The little tab that supposedly keeps the chain from jumping off will need to be nuked (cut off).Well actually, the GS also uses a longer cage too.

I was ordering up a dura ace rear derailleur and was faced with the option of the 7700 ss or 7700 gs - if I want to run a 12-27 nine speed cassette which one do I need? You guys are smart so this one should be easy.

Note: no campy vs. shimano rants allowed!SS with a double GS with a triple if you are AR,but a SS works with a triple for seat of the pants types.

I've got one...CampagNOlo! HAR HAR!!!

(ok, I'm done.)