Ultegra 9 speed triple compatability

usafanarc said:

I am in the process of upgrading my drivetrain with Ultegra 9 speed triple (6503 series) components. I like my bike, but the components were all Tiagra and I've outgrown them. I also don't have the money for a completely new bike. I have already purchased the crankset, cassette, bottom bracket, and chain. As far as the derailleurs are concerned...what is my best option. I've seen the front derailleur out there, but the rear derailleurs are few and far between. Will a Dura-ace RD-7700-GS work?? What about the 105 9 speed triple rear derailleur? Any help would be appreciated. Thanks.

All of those options will work. If you want the best value, go with the 105. Performance will be nearly as good as DA and much less expensive. If you already have a Tiagra triple (long cage) RD, you could stick with that. I think that the performance differences in the higher groups are maybe in the shifters and in the smoothness of the bearings. Other than that, what you really get for the increased price are a better finish and lighter weight. There is better durability in the higher priced shimano groups because at the low end you get a lot of plastic.

105 is the best value in the Shimano line. Virtually as good performance, but way cheaper. RDs can be had for 40 bucks online. FDs are pretty much all the same so you could stick with your Tiagra, although if you insist on a match a 105 FD is only about 30 bucks. Big cash is in the shifters.

capwater said:

Big cash is in the shifters.

Upgraded my Sora 8 spd shifters to 105's last week (it wasn't difficult). Paid $149 at Nashbar.

L

Lonnie Utah said:

Paid $149 at Nashbar. L

Hope you used the 10% off coupon, Lonnie........CR201 always works.

Thanks. Great information! That will save me some money to go with 105's. This is my first time on the forum...it's nice to have this resource! Thanks, again.