Flat Bar and Grip Shifter (and rear derailer for grip shifter?) Recommendations?
 

Any recommendations for triple-crankset, 9-speed grip shifter? I was wanting to replace the 7-speed grip shifter on my 1995 Trek 730, to accommodate an upgrade to a 9-speed cassette.

Will a special rear derailer be required with the recommended 9-speed grip shifter, for an Ultegra 12-27 cassette? If so, then recommendations for a specific rear derailer?

And is there a recommendation for a flat handlebar, to put the grip shifters on?

the bike mechanics group or the commutter form should have some good advice