dyna vibes at speed

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Jan 5, 2013 | 11:41 AM

Rampant

Thread Starter

Tourer

Joined: Nov 2012

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From: PA

dyna vibes at speed

All dynas shake at idle but how much vibration is expected at speed? Ive heard super smooth and ive heard to expect a shake. Mine definitely vibrates/shakes at speed but not so bad i find it uncomfortable, but more than other bikes ive ridden. For ref. I ride an 08 street bob

Jan 5, 2013 | 11:49 AM

OldMike

Seasoned HDF Member

Joined: Feb 2009

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From: Cleveland Zoo

The only way for you to answer your question is to take another Harley for a ride. Mine vibrates but it's not constant, there are sweet spots in the RPM range where it vibrates less. There's no way for me to say it vibrates more or less than your bike though or to tell you your bike is normal.

Jan 5, 2013 | 11:57 AM

Mid-Night-Rider

Tourer

Joined: May 2012

Posts: 335

Likes: 89

From: Reno, NV

My 09 SB shakes a little at idle, smooth at speeds. No motor mount shims. Some people claim that helps with the vibrations.

OldMike, is that a mirrored image of your bike? Whole thing looks backwards.

Jan 8, 2013 | 04:20 PM

Tall Timber

Road Warrior

Joined: Aug 2012

Posts: 1,363

Likes: 427

From: Yarra Ranges, Victoria, Australia

My levers rattle loudly at 100kph but only when I have two hands on the bar. Place my left hand on my knee and the rattles stop. Weird

Jan 8, 2013 | 07:43 PM

therealjohnny5

Cruiser

Joined: Nov 2012

Posts: 130

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From: South

I have a brand new 48 that I thought just vibrated at speed and it was normal. Took it in and the bearing in the front wheel has flat. I swear it was manufacture defect. They wouldn't cover it. Lesson learned, my next bike I'm taking for a nice long ride before buying.

Jan 8, 2013 | 09:07 PM

Gommee

Devil's Advocate

Joined: Jun 2010

Posts: 2,070

Likes: 36

From: Alberta, Canada

Check for front motor mount clearance. If you do not want to shim mount or shave mount, buy new one.
If you have replaced the tires and have not changed the bearings, change the bearings. Start with rear and then front.
I changed bearings, shaved and shimmed mount, only reason I have any vibrations is from the cams rumbling the motor as I cruise down the pavement.

Jan 9, 2013 | 05:53 AM

Hogpro

Former Sponsor

Joined: Aug 2005

Posts: 10,968

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I advise to check the front motor mount as well. Mine had a bit of vibration when I bought and I discovered the front motor mount was shot. They should be very smooth at speed. that being said, my hand can still go numb from the vibration at speed depending on the rpm of the engine.