So I just got my used bar end shifters off ebay and was curious on compatibility. They say they're compatible with RD-7700 and RD-7400. Am I guessing this is for SIS mode? And can I use SIS mode on any other Shimano Rear der? I will be using a Nashbar MTN rear der which is compatible with all Shimano parts I am told.
Mtbr's 2016 Winter Biking GearReviews and Roundups
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