Originally Posted by
jco1385
I am in the process of rebuilding my '90 Schwinn 434. Instead of using the old 7sp stuff off of the 754 I have, I am going with a 9sp setup. I just want to make sure that the parts I want to use are all going to be cooperative. I plan to buy/use used parts where I can to save some cash.
I have a Shimano 2200 (8-9sp) rear hub laced to a Weinmann LP18. i bought a 9sp Ultegra CS-6500 (12-25) cassette.
i have a triple front crank that i would like to use, but it's older and idk if it will work with the 9sp setup. It's a Sakae Custom off of a ~'82 Puch Maxima. if not, i need to know what i need to buy. i don't need a triple, but i'd like to if i can do it cheap enough. i don't want a compact. (square taper BB)
i went by the LBS yesterday and asked them about what i was planning on doing. they said that i would need a long cage RD to use a triple w/ 9sp. is this true? will a 10sp RD work with a 9sp cassette/shifter?
i would like to use downtube shifters, but i haven't ruled out an STI setup (if i can get it cheap enough). are there any 9sp DT shifters? i see some 10sp DA ones on ebay, so i would assume so. will 10sp shifters work with 9sp cassette/RD?
if i use a triple crank, i need a triple compatible FD, correct? does it also have to correlate
to the size of the cassette? is there a 9sp triple FD with a 31.8 clamp?
is there anything i'm missing? sorry for the very newbish questions, but i want to make sure i get the right stuff.
a long cage RD is reccommended for use with triples, but I think if you are not going extra small on the granny and keep to the top half of the cassette when in use (like you normally would anyway) you might be able to get away with a short cage RD. obviously long cage is preferable.
you do need a triple FD, they have a wider inner cage to help reach down and get the chain of the granny. the biggest compatibility concern compatibility wise is that narrow 9/10 speed chains don't need as wide a FD cage, so using something older could give you problems (namely throwing your chain occasionally)
I don't know much about 9/10 speed compatibility, but you are probably better off sticking with 9 speed shifters and cassette at the least. 10 speed RD may be compatible. you can find 9 speed DT shifters on the net.