Shimano Ultegra 9-Speed RD-6503 Triple Rear Derailleur

Ultegra 9-Speed RD-6503 Triple

The Ultegra 9-Speed rear derailleur provides precision shifting for narrow-spaced 9-speed cassette sprockets.The Ultegra rear derailleur has alternating contact with the chain links, thereby reducing wear. It also features a larger pulley diameter that leads to smoother, longer-lasting performance. It shifts with a light touch thanks to its low-friction design. Its flowing lines provide a striking appearance while improving its overall rigidity.

User Reviews (2)

Showing 1-2 of 2  
estone2   Road Racer [Dec 14, 2005]
Strength:

shifts well... if you pedal at around 60 cadence, and are a featherweight on the pedals (barely pushing at all)

Weakness:

shifts as well as 105, alot shakier, less solid feeling than DA or 105, slips teeth under torque, really flimsy feeling. not worth the cost, compared to 105 or DA.

I used this on my friend's Trek 1500 multiple times, and tested it on several cannondales (six13, etc), Trek 5000s, and trek 2200s. Horrible. HORRIBLE. yeah, it shifts as fast as 105 triple, but it cant take the torque; i ride 105 normally and it shifts AS FAST as the ultegra, and it can take torque; with my 105 it never slips, with the ultegra, i could feel a tooth or two slip EVERY TIME I SHIFTED. admittedly, im a really torquey rider (i break toe clips after 20 miles. and cleats after 2500. eek), but come on guys, if 105 and DuraAce can handle it, shouldnt ultegra? i mean its basically duraace, but slower and heavier, and 105, well, it should be faster and better htan 105...

Similar Products Used: 105, DuraAce, Record, Centaur, Veloce, ALL triple or double
OVERALL
RATING
3
VALUE
RATING
2
Wes   Recreational Rider [Dec 11, 2005]
Strength:

Good shifting, holds adjustment, looks

Weakness:

Well, none really, but it's not Dura-Ace and that may be a weakness for some.

This rear derailleur came stock on my Trek 1500. It shifts smoothly, hasn't needed adjustment often at all, looks good, not too heavy. What more do you want? Sure all the really serious racers and wanna be racers are gonna be using Dura-Ace, but most wouldn't be using a triple anyway. I've found most of the Ultegra components to be quite good, and this derailleur is no exception.

Similar Products Used: 105
OVERALL
RATING
5
VALUE
RATING
5
Showing 1-2 of 2