Joined
·
33 Posts
Hi all,
I got a set of older 8 speed Dura Ace STis that seem to be worn. The gear spacing is kinda funky in the big cog, even though everything seems to be adjusted well, and I'm using them with a Dura Ace derailleur.
I'm a semi-competent wrench, I think (but could be wrong). I've done lots of bike builds, I build my own wheels (they actually stay straight!) and the like.
My guess is that the ratchet inside has worn and is allowing extra cable slop in the most popular (to the previous owner) gears.
Can the ratchet mech be replaced in these? Are the parts even available?
I'm a fairly DIY kinda guy, but if it means that I'm going to spend 500 hours to locate parts and install them correctly, then chase down why they don't work just so, then maybe its time to pony up for a whole new drivetrain. The thing is, I'm broke, so the chances of that are pretty slim.
Option two may be finding 105 parts if they fit, and replacing my derailleur as well, since the DUra Ace 8 speed pull ratio is different than everybody else's pull ratio. My derailleur pivots seem kinda sloppy as well.
Any opinions are appreciated.
I got a set of older 8 speed Dura Ace STis that seem to be worn. The gear spacing is kinda funky in the big cog, even though everything seems to be adjusted well, and I'm using them with a Dura Ace derailleur.
I'm a semi-competent wrench, I think (but could be wrong). I've done lots of bike builds, I build my own wheels (they actually stay straight!) and the like.
My guess is that the ratchet inside has worn and is allowing extra cable slop in the most popular (to the previous owner) gears.
Can the ratchet mech be replaced in these? Are the parts even available?
I'm a fairly DIY kinda guy, but if it means that I'm going to spend 500 hours to locate parts and install them correctly, then chase down why they don't work just so, then maybe its time to pony up for a whole new drivetrain. The thing is, I'm broke, so the chances of that are pretty slim.
Option two may be finding 105 parts if they fit, and replacing my derailleur as well, since the DUra Ace 8 speed pull ratio is different than everybody else's pull ratio. My derailleur pivots seem kinda sloppy as well.
Any opinions are appreciated.