Why two Twin Cam versions?
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Intermediate
Joined: Apr 2006
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Why two Twin Cam versions?
I have owned a Sportster since 1990 and recently purchased a 2006 StreetBob. Love it. Just wondering why does Harley make two versions of the Twin Cam engine, one balanced and one not. I like my Dyna version just fine but don't quite understand the need for a internally different Big Twin.
Seasoned HDF Member
Joined: Dec 2003
Posts: 7,090
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From: Murfreesboro , TN
RE: Why two Twin Cam versions?
The frames of the softtails are different. Dyna's and touring bikes both use rubber mounts for the motors to reduce vibration feedback to the rider/passenger. Softtails, having no rubber mounts, need something else to balance out the motor.
Tourer
Joined: May 2006
Posts: 383
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From:
RE: Why two Twin Cam versions?
I'd have to say the Dyna Owners from my experience on a Wide Glide. You get more power without the counter balancers and well it looks pretty damn cool to see your motor dance around at idle being rubber mounted[sm=biker.gif].
Outstanding HDF Member
Joined: Feb 2006
Posts: 2,958
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From: West Tennessee
RE: Why two Twin Cam versions?
I think we got the better deal. I love the shaking "A" motor at idle, then it's smooth through the powerband. The "B" motors are dead smooth at idle, then you get the buzz as the RPM's rise. T`ain't for me.
Cruiser
Joined: Dec 2005
Posts: 154
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From: Kansas City Mo. Area
RE: Why two Twin Cam versions?
This has been a debate on here before, I have the FLSTCI with the balanced motor and love it. It is so smooth at slow speed or highway speed. I read on here about a buzz at 70 MPH man I don't here it, I do here an awsome V-twin purring along at 70. I think there both great motors I would not knock either one. I have seen people write on here how the just went on a long ride and got home to notice something had fallin off the bike during the ride like passenger foot pegs and tail lights etc. wonder witch motor they had. Tom
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Joined: Sep 2005
Posts: 3,475
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From: Southeast Wisconsin
RE: Why two Twin Cam versions?
ORIGINAL: Cryptoboy
The frames of the softtails are different. Dyna's and touring bikes both use rubber mounts for the motors to reduce vibration feedback to the rider/passenger. Softtails, having no rubber mounts, need something else to balance out the motor.
The frames of the softtails are different. Dyna's and touring bikes both use rubber mounts for the motors to reduce vibration feedback to the rider/passenger. Softtails, having no rubber mounts, need something else to balance out the motor.
As far as the other comments about the vibes being good or bad--I would love to see that 88B in some sort of Bagger. I don't mind the vibes on my Street Glide but I would really like to have the option of having either motor...and a third option for a V-Rod Bagger as well.
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Road Master
Joined: Jan 2006
Posts: 899
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From: South Carolina
RE: Why two Twin Cam versions?
ORIGINAL: solorider
As far as the other comments about the vibes being good or bad--I would love to see that 88B in some sort of Bagger. I don't mind the vibes on my Street Glide but I would really like to have the option of having either motor...and a third option for a V-Rod Bagger as well.
As far as the other comments about the vibes being good or bad--I would love to see that 88B in some sort of Bagger. I don't mind the vibes on my Street Glide but I would really like to have the option of having either motor...and a third option for a V-Rod Bagger as well.
I also rode a Street Bob and, for this type of bike, I could accept the shaking a LOT more so than on the bagger. A "Touring" bike shouldn't shake as much as H-D baggers do (again, just my opinion
). They shouldn't be as smooth as butter...after all, you need a little bit of vibes so ya know you're on a Harley! Perhaps H-D could make an 88B or 88A option...To give credit where credit is due, the RKC...she was a bit smoother over bumps than my Heritage...just not a lot smoother.
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Banned
Joined: Feb 2006
Posts: 10,481
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From: Triangle, VA
RE: Why two Twin Cam versions?
I think it's half dozen of one, 6 of the other. My buziness doesn't take place until 80mph, but it's very distinct. You lose HP with the counterbalancers but it doesn't shake at all at idle. Whatever you prefer.
Outstanding HDF Member
Joined: Mar 2006
Posts: 2,617
Likes: 1
From: Southwestern Virginia
RE: Why two Twin Cam versions?
I rode just about every type of bike (except a sporty for some reason) trying to sort out just what I wanted. Every one of my friends who rode baggers said that there was a huge difference in the rides between the softails and the rubber mounted bikes. For the life of me I couldn't figure out why I couldn't feel the difference. Then a friend of mine reminded me that I drive an Expedition. The thing's got a truck frame. My butt was "used to a truck ride" said my friend! My butt was so desensitized that the "ride" didn't matter. He said "go with the feel!" So I did. Man, I love my fatty.