6 speed transmission advice needed..
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Road Captain
Joined: Mar 2010
Posts: 632
Likes: 11
From: Wheeling, WV
6 speed transmission advice needed..
I have a 1993 FXSTC. I been looking on the sites for a RevTech, or the Optima 6 speed, the Baker is way over my $ head. Any suggestions ...thanks
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,081
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From: Ohio
Waiting for 1 bearing to install a Baker I purchased that was pulled on a trade in on a new bike. Did alot of research and not alot of positives on the Rev Tech, positives on the Ultima but still had failures.
Moog has a good point, in stock Evo application, a 6 speed won't be a good deal. 6th gear will be a 80 mph gear but if your determined to needing a 6 speed, drop the trans sprocket 1 or 2 teeth or I believe your bike has a 65 tooth rear pulley, go to a 70 and will make a 6 speed more efficient.
I have a big bike, large skillet headed rider and enjoy running hard with my small bike buddies so I have my gear ratio in the 3.65 range, a 6 speed will help me for my application. If it wasn't for my desire to accllerate fast and a mainshaft seal leak, I wouldn't consider taking out the smooth shifting 5 speed.
Moog has a good point, in stock Evo application, a 6 speed won't be a good deal. 6th gear will be a 80 mph gear but if your determined to needing a 6 speed, drop the trans sprocket 1 or 2 teeth or I believe your bike has a 65 tooth rear pulley, go to a 70 and will make a 6 speed more efficient.
I have a big bike, large skillet headed rider and enjoy running hard with my small bike buddies so I have my gear ratio in the 3.65 range, a 6 speed will help me for my application. If it wasn't for my desire to accllerate fast and a mainshaft seal leak, I wouldn't consider taking out the smooth shifting 5 speed.
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Road Captain
Joined: Mar 2010
Posts: 632
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From: Wheeling, WV
My bike is far from stock. I have istalled screamin eagle 10:5 pistons, ported heads, Woods W6H stick, Crane HI-4, 2/1 exhaust, Mikuni carb, along with a Baker 23 tooth crank sprocket. At 70 MPH the bike revs @ 3200 and vibrates my teeth. This is the rational for the 6 speed. The bike with the above configuration runs very strong and comes on strong about 3500 rpm. No problem leaving 96 inchers in my mirror.
Tourer
Joined: Jan 2011
Posts: 350
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From: Reidsville, NC
I am pretty new to the Evo scene but from what I remember hearing and reading about the three, I would check the swap meets, Ebay, etc for a Baker. You may need to put in bearings and seals but it would probably be cheaper in the long run. Been looking at a lot of used harley parts sites the last two days if I see a good one at a decent price I'll send you a link to it.
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,081
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From: Ohio
My bike is far from stock. I have istalled screamin eagle 10:5 pistons, ported heads, Woods W6H stick, Crane HI-4, 2/1 exhaust, Mikuni carb, along with a Baker 23 tooth crank sprocket. At 70 MPH the bike revs @ 3200 and vibrates my teeth. This is the rational for the 6 speed. The bike with the above configuration runs very strong and comes on strong about 3500 rpm. No problem leaving 96 inchers in my mirror.
Like I mentioned ealrlier, Rev Tech 6 speeds have a bad name from most installers, very few owners defended the trans.
Club Member
Joined: Jun 2007
Posts: 45,429
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From: Bedford UK
My bike is far from stock. I have istalled screamin eagle 10:5 pistons, ported heads, Woods W6H stick, Crane HI-4, 2/1 exhaust, Mikuni carb, along with a Baker 23 tooth crank sprocket. At 70 MPH the bike revs @ 3200 and vibrates my teeth. This is the rational for the 6 speed. The bike with the above configuration runs very strong and comes on strong about 3500 rpm. No problem leaving 96 inchers in my mirror.
Have you checked over things like your rubber mounts, vehicle alignment and made sure that nothing is touching things it shouldn't be? May be something easy and less expensive than a set of new gears that needs attention.
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Road Captain
Joined: Mar 2008
Posts: 601
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From: Aruba
Good thread here: https://www.hdforums.com/forum/softa...ay-or-nay.html
While I'll agree the Baker is probably one of the best trannys out there, no way will I pay $3500 for it when I can get an Ultima for $600. I'd buy two Ultimas and still be at less than half the price and have a spare.
It appears that Ultima had a few issues early on but they have fixed them now. (Similar to their motors.)
While I'll agree the Baker is probably one of the best trannys out there, no way will I pay $3500 for it when I can get an Ultima for $600. I'd buy two Ultimas and still be at less than half the price and have a spare.
It appears that Ultima had a few issues early on but they have fixed them now. (Similar to their motors.)
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Thread Starter
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Road Captain
Joined: Mar 2010
Posts: 632
Likes: 11
From: Wheeling, WV
Gentleman, Thanks for the advice. There was no excessive vibration before the crank sprocket change, I like the acceleration effects at low speed and the sprocket will stay. Just came back from a 120 mile run averaging 70 mph. The rpm was 3500. I will investigate the late production Ultima units...
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Joined: Sep 2007
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From: Bluffton, South Carolina
Take your time putting the gearset in, they are pretty easy to install. DO NOT TIGHTEN THE FINAL DRIVE BELT TOO TIGHT. It will cause a seal leak and could cause some other problems too.