WD wrote on 12/26/12 at 08:24:13:1 inch. If you plan to replace them make sure you order smooth bars, not dimpled. Dimpled bars are slightly oval in cross section, your switch boxes won't fit properly.
Sorry to contradict old boy but I read on here that dimple bars don't work on the savage and went round and round the houses trying to find some undimpled bars to me liking.
Then I just went "sod it" - bought some dimpled sportster bars off ebay and cor blimey.... they fit perfect.
There is no oval situation and all I had to do was drill a couple of holes in the bars for the tab that helps hold the controls on (20 mins job).
Cheaper knock-offs may differ but harley sportster are a go go.
They are also very comfy with well defined character.