I have a 2002 Mongoose Sommet.
Shifters: Shimano ST-M510
Rear Derailluer: RD-M510
Front Derailluer: FD-M510
After years of great service, I'd like to upgrade the components. I was looking at the XT stuff, but not sure what I need.
Front Derailluers: M760, M771, M770???
Rear Derailluers: M960, M771, M770, M772???
What are the differences? What would be a good replacement?
Mtbr's 2016 Winter Biking GearReviews and Roundups
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