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component upgrade(5 posts)

component upgradespencer
Jul 15, 2003 4:56 AM
I am about to embark on my first major bike project and need some help. I want to upgrade my backup bike from shimano exage downtube shifters to 105 STI style shifters. Of course I want to do this as cheaply as possible. My question is what do I need to replace. Obviously the shifters but do I need a new front/rear derailleur, cassette?? TIA
re: component upgradeRusty Coggs
Jul 15, 2003 6:35 AM
It would be helpful to know spesds in rear,frame material and rear dropout spacing. also asume you mean 9 speed 105 STI??
Good money after bad?Kerry Irons
Jul 15, 2003 5:07 PM
A bike like the one you generally describe is not likely worth the $$ for this upgrade. You could probably get a "new" used bike for the same $300 this is going to cost you (likely shifters, rear derailleur, chain, cassette, rear wheel, frame spread, maybe front derailleur).
105 probably not available in a 7 speedLone Gunman
Jul 15, 2003 6:23 PM
Exage was a middle of the line components used about 1990. Had them on my Schwinn 564. To keep it cheap, look for RSX STI 7 speed shifters, need a hyperglide cassette, it helps and possible a new FD, rear should work okay, plus a chain.

If you want to go 9 speed, I suggest a full drivetrain and if the frame is alu, you are talking about spreading a rear stay that is rigid, not a good idea. 9 speed is gonna cost you and really for the frame the Exage was on, it is not worth the upgrade. If you can locate RSX 7 speed shifters, this may all be done for under $100.
Coverted 7 spd 105 to sti...loki_1
Jul 16, 2003 12:29 PM
last year. I started out with the full 105 group and downtube shifters so all i needed to replace was the shifters. My LBS found shimano 7 speed sti shifters. Cost: about $150 including new bar tape, cables, tuning.