Built-in / Normal M8 Vibration

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Sep 21, 2021 | 08:15 PM

#51

JatoTheRipper

Tourer

Joined: Sep 2021

Posts: 401

Likes: 190

From: PA

I'm coming from a Buell XB12Scg that had a lot of its own vibrations, but I have to say my stock 2020 Fat Bob 114 with 2,000 miles has way more vibration than I expected. I can't believe Harley considers this to be smoother. My hands will tingle after 45 minutes or so. Are there any padded gloves and handlebar bushings and/or bar snakes you'd recommend?

Also, I've read conflicting information. Does the Stage II Screamin' Eagle SE8-447 torque cam add more vibration? I understand valve lift will be changed, but I can't see this adding much more vibration if any.

Sep 26, 2021 | 09:47 PM

#52

IBE

Seasoned HDF Member

Joined: Dec 2019

Posts: 5,276

Likes: 4,055

From: central Fl

man my 013 ultra shook way more than this 18 fatboy. i keep looking for the harley shake i really miss it my handle bars at a light are as smooth as butter

Sep 27, 2021 | 08:34 AM

#53

Crispy

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Joined: Jul 2021

Posts: 344

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From: TX

Quote:

Originally Posted by IBE

man my 013 ultra shook way more than this 18 fatboy. i keep looking for the harley shake i really miss it my handle bars at a light are as smooth as butter

People aren't talking about a shake or rumble. More like a high frequency buzzy vibration. Like holding a weed eater on full throttle.

Sep 27, 2021 | 08:36 AM

#54

Crispy

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Joined: Jul 2021

Posts: 344

Likes: 192

From: TX

I put new bars on my FXBBS and it really helped with vibes. The stock bars are light and flimsy. My new bars are 1.25" and much more solid and heavy. I also switched to poly bushing.

Sep 27, 2021 | 01:20 PM

#55

IBE

Seasoned HDF Member

Joined: Dec 2019

Posts: 5,276

Likes: 4,055

From: central Fl

Quote:

Originally Posted by Crispy

People aren't talking about a shake or rumble. More like a high frequency buzzy vibration. Like holding a weed eater on full throttle.

ohh i dont get any of that

Sep 27, 2021 | 03:42 PM

#56

Durham man

Stellar HDF Member

Joined: Mar 2017

Posts: 3,325

Likes: 1,889

Quote:

Originally Posted by Crispy

I put new bars on my FXBBS and it really helped with vibes. The stock bars are light and flimsy. My new bars are 1.25" and much more solid and heavy. I also switched to poly bushing.

some have claimed that poly bushings make the vibes worse on the new softail’s. 6.5 risers with stock bar and bushings, no vibes here!

Sep 27, 2021 | 11:34 PM

#57

Crispy

Tourer

Joined: Jul 2021

Posts: 344

Likes: 192

From: TX

Quote:

Originally Posted by Durham man

some have claimed that poly bushings make the vibes worse on the new softail’s. 6.5 risers with stock bar and bushings, no vibes here!

Yeah I doubt my reduced vibes are attributed to the bushings as much as the bars. Maybe stock rubber bushings would be even better, idk. All I know is I don't even notice the vibes, now.

Sep 28, 2021 | 09:15 AM

#58

Tozco

Road Captain

Joined: Nov 2017

Posts: 575

Likes: 263

From: Spokane, WA

The M8 Softail buzz really varies from bike to bike. I got mine under control by shimming the riser to bar interface. I run Biltwell moto bars. I figured it out when I touched the riser and it felt smooth yet the clutch side bar end was really buzzing.