Originally Posted by
borobike
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Anyone know if I can use an 8 speed brifter with a 7 speed drivetrain? I've seen them around also. But that's something for way in the future.
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The cog to cog spacing of 7 and 8 speed are different. Scroll down about 1/3 to Cassette /Freewheel Spacing
http://www.sheldonbrown.com/cribsheet-spacing.shtml 5.0 vs 4.8 mm - maybe okay, maybe not........