Data from Speedgoat.com says
Tiagra $36 240g
105 $48 236g
Ultegra $72 195g
Dura Ace 9 $100 162g
Edit: SRAM PG-970 $57 216g So somewhere between 105 and Ultegra in both cost and weight.
Edit, edit: Performance lists these specs a little differently:
Ultegra $42 210g
Dura Ace $99 159.5g
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Last edited by Grasschopper; 06-24-05 at 06:50 AM.