GL 1500 C Valkyrie
Year Bar Diameter Height Width Pullback Center Clamp Area Factory #
97-03 1" 6" 33" 14" 9" 3" x 5" 53100-MZ0-000
The interstate bars are identical to standards, except 1/4" shorter (1/8 per side). I once heard why, but can't remember. Maybe something to do with the fairing.
http://www.sideroadcycles.com/AmericanMotorcycles/Handlebars/Stock_Bars.html
If you have risers for the 1.25" bars, they will be no good for 1' bars. Your rake kit may change up what risers you want, but maybe not. I doubt you'd like the OE 3 1/8" risers though.