I thinking to change my Long Haul Trucker set up. Have both Dura Ace 7700 / 7703 STI Flight Deck 3x9. Will it be compatible with the LHT stock Front Derailleur Shimano Sora FD-3403 n Rear Derailleur Shimano XT RD-M771.

I'm changing over to Paul Touring Canti's brakes too. Just wondering what other issues might come up

Sorry if these questions are redundant. Thanks for your time and consideration.

  • Yes (it sounds like your LHT is a 9 speed one, so this should be fine).
    – Batman
    Commented May 15, 2017 at 2:56

1 Answer 1


Yes, all nominally 9-speed Shimano mountain RDs will work with ST-7700, and all pre-11-speed road FDs will work with ST-7703, except for FD-4700 at present and any future 10-or-fewer groups that use the 11-speed actuation ratio.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.