Humming Sound on Left Hand Sweepers

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#21

07-01-2015, 04:07 PM

stic2it

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Quote:

Originally Posted by HardRider1

Interesting thought, but would you not hear that hum all the time if that was the case.

I check my tire pressure about every 2nd time out or if the bike has sat for a couple of days.

Search, Obi damn! Lots and lots of info on the forum. You ca even use google!

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#22

07-01-2015, 04:19 PM

ultra_classic

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Quote:

Originally Posted by HardRider1

Looking for some suggestions as to what would cause a humming sound (coming from what sounds like the front wheel) when taking a left hand sweeper traveling at speeds above 30 MPH. Almost sounds like a wheel bearing but I would think at only 6K miles on a new bike this would not be the case.

Could in be possible the tread pattern of the tire, but I only hear it when going left.

Suggestions would be appreciated

i would think its the left edge of the tires have a lumpy edge and on left turns you hear and feel it, Or a wheel bearing, but you could check both fairly easily

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#23

07-01-2015, 05:02 PM

N-Truder

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I know why it hums....

Cause it don't know the words...

Sorry, couldn't resist...

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#24

07-01-2015, 05:46 PM

1Canuck

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on my first set humming was identified as cupping progressed. now I keep them inflated more than the manual specs and have not had the hum or cupping.
my guess is that the 36/40 pressure is based on a lower combined weight than most of us carry, which means add some air.

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#25

07-01-2015, 06:58 PM

bdtaylor1979

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Quote:

Originally Posted by son of the hounds

Me too! I know it is not the wheel bearing, easy to check. I know it is not the tires as I scrape my Jackpots and that is about as far as the kick stand allows on the left side. I always figured it was the rear hub and belt sound reflected back to me.

I agree.

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#26

07-01-2015, 08:02 PM

mikeo33y

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my 13 ultra does it and my 08 fat bob did it until i went to Bridgestones on my fatbob and the sound went away. its definitely not wheel bearings. started doing on both bikes at around 5k. for a while i thought it might be the belt just touching the left side of the tire since it only did it going on left sweepers which would torque the frame /swingarm area

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#27

07-01-2015, 08:19 PM

TSheff

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Quote:

Originally Posted by HardRider1

I'd be pretty sure of two problems;
1 - Tires like just about everyone said
2 - Change your exhaust, if you're hearing the tire hum the exhaust is entirely too quiet

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