I have the HD 6 Speed, would have preffered the Baker DD6, however to long a wait for it. At 80 mph revs are around 3,100 - 3,200 RPM. No qualms with the HD 6 Speed.With the build I have I am getting better gas mileage than friend with 95" builds in their ULTRAs averaging 75 mphs.
My build is an 04 SE 103", heads reworked by SBC Phoeinx, Stock Pistons, S&S 585 Gear Drive, HD SERT, rest of engine stock, Compression is apprx. 10:2 1, Freedom Cycle exhaust, had Rineharts, only reason changed was due to an accident destroyed the original Rineharts. Engine & Trans is in an 03 Road Glide
With Rineharts Dynod at 106 HP and TQ at 116 lb ft, No dyno yet with Freedom Cycles Exhaust.
I would get another 6 Speed, probably Baker. No problems with the HD 6 Speed, have other 8,000 miles on it since April.
geezerglide