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If you have a 4 speend case you can't run a 5 speed case (frame is diffrent). You can get a gear set from baker and use your cases . That is the best thing to do
Does it change the first 5 gear ratios or does it just add an over drive?
Just curious and I have been thinking about putting one in mine.
The first gear is taller, the rest are the same (5th is 1:1) and 6th is Overdrive, to be used at speeds over 65mph. In AZ the Interstates are 75mph, itmakes 80mph feel more like 60mph on the evo. (I have a 100" Evo, so the taller first didn't bother me.)
I have my doubts about a six-speed box. They seem to add an overdrive, not provide a set of closer ratios.
Most Harleys are already over-geared and even Don Branch reckons the first tuning mod to a TwinCam is to lower the gearing! We have fitted a Screaming Eagle kit to my wife's Dyna, reducing the crankshaft sprocket from 25T to 21T. It really gets up and goes now! Top gear is around 19mph/1,000rpm.
So if the TwinCams are leaving you behind, don't tell them that! You either need to change down a gear to keep up with them or a lot more power. Raising your top gear with a six-speed box is not likely to help!
Maybe its me or something that you need to adjust to over time but I wasn't knocked out when I drove the kids Street Bob 6speed. It seemed to be a dog in 6th on the 4 lane highway when I moved to the left laneto pass a car. I didn't expect it to be a speed demon, I just wasn't that impressed.
What am I missing about the 6 speed ?
Your missing the power to push it down the road......
I Know..... I know..... old as hell thread but i couldn't resist....
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