Wobble when making a fast sweeping turn?
Outstanding HDF Member
Joined: Mar 2015
Posts: 2,840
Likes: 900
From: Philly Suburbs
As far as tire pressures go, I have no experience with your Michelins. But the Pirelli Night Dragons and the Avon Cobras both like a bit more pressure than OEM... I run my Cobras around 43 rear and 40 front...
Max Headflows's suggestion about vertical alignment is a good one too... Here's how I set mine:
https://www.hdforums.com/forum/dyna-...top-mount.html
Jimbogto68 may be onto something as well... If the front and rear ride height went in different directions, who knows what sort of steering geometry exists now...
Max Headflows's suggestion about vertical alignment is a good one too... Here's how I set mine:
https://www.hdforums.com/forum/dyna-...top-mount.html
Jimbogto68 may be onto something as well... If the front and rear ride height went in different directions, who knows what sort of steering geometry exists now...
Thread Starter
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Stage IV
Joined: Apr 2018
Posts: 4
Likes: 1
From: San Francisco
I appeciate all of your input guys. Ive come to the conclusion that the reason Im getting the wobble on a high speed sweeping turn is because the rebound on the front forks are to fast; which causes the frame and the front end to wobble. I am running two inches over on the front end, and realized Ive altered the trail. I like my bike to ride high for the purposes of cornering. I guess the next best option to stabilize the bike is to get a quality cartridge hit to reduce the front end rebound. The progressive heavy duty springs Im running just cant handle my style of riding.
Cruiser
Joined: Jul 2015
Posts: 213
Likes: 42
From: Costa Mesa
I run Andreani cartridges up front and ohlins divided chamber rear shocks with rebound adjustment and get just about no wobble except if I hit a big bump while leaning hard and fast. My bike is a 2009 fat bob with 25k miles, stock motor mounts and night dragon tires. These suspension components would be a big step up from your current setup. Lots of other options to look at as well, but I think cartridge suspension in the front is one of the best upgrades you can do on these bikes. You won't regret spending money on it.
Cruiser
Joined: Nov 2014
Posts: 227
Likes: 32
From: ok
I run cartridges also and it's the best money I've spent so far on handling. If you get some definitely get ones with adjustable preload, compression, and rebound because a few of the ones out don't have any adjustment other than preload(namely Progressive and Legends). I would have said fork brace because you're +2 in the front but you have one already. With cartridges and wide glide tubes I only needed a brace for the rain grooved pavement all over the place here and it helped with that quite a bit.
Tourer
Joined: Jan 2011
Posts: 356
Likes: 36
From: Oklahoma
As counter intuitive as it sounds, try loosening up your grip before you go into the sweeper.
Aside from that I dunno. The 2010 WG I had did about the same thing but at much higher speeds. After trying all of the tricks I knew I attributed it to the relatively weeny wheel bearings. The 07 WG I have now is rock solid at any speed. I purposely went looking for an 07 to get the 1" bearings because of this.
Again, my experience with this was a high speeds.
Aside from that I dunno. The 2010 WG I had did about the same thing but at much higher speeds. After trying all of the tricks I knew I attributed it to the relatively weeny wheel bearings. The 07 WG I have now is rock solid at any speed. I purposely went looking for an 07 to get the 1" bearings because of this.
Again, my experience with this was a high speeds.
Stellar HDF Member
Joined: Feb 2013
Posts: 3,072
Likes: 1,727
From: Dallas, Texas
I'm running Commander II's on my 07 Dyna SB (96,000 miles.0 Go for 32 f, 38 r psi. I have an 07 Wideglide front end with a 21" wheel, and the tall bagger air shocks. It changed the trail a few degrees, but it handles like a sport bike AND ROCK SOLID in the hi speed sweepers.
Road Captain
Joined: Nov 2014
Posts: 582
Likes: 53
From: Greenville, SC
I run Michelin Commander II on my '14 Street Bob. Stock height. On the Michelin site, I found tire pressure recommendations and run mine to that pretty close. They suggest rear: 39.2 front: 29.4. So when I fill, I just bump against 30 and 40 lbs. Its seems to do pretty well. I weigh sub 180 all dressed.
Grand HDF Member
Joined: Jul 2016
Posts: 4,384
Likes: 8,742
From: Texas
I’ve come to the conclusion that the reason I’m getting the wobble on a high speed sweeping turn is because the rebound on the front forks are to fast; which causes the frame and the front end to wobble. I am running two inches over on the front end, and realized I’ve altered the trail. I like my bike to ride high for the purposes of cornering. I guess the next best option to stabilize the bike is to get a quality cartridge hit to reduce the front end rebound.
Option 2 - reduce preload on the HD springs by shorting the spacers
Thinking heavy duty springs are necessary for better performance is ludicrous
Unless one habitually over loads / or loads near - the carrying capacity of the scoot
Suspensions need to work - not be stiff as a damn rigor mortised corpse
Ghost
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Thread Starter
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Stage IV
Joined: Apr 2018
Posts: 4
Likes: 1
From: San Francisco
If this the issue
Then you're over-sprung - need standard rate springs
Option 2 - reduce preload on the HD springs by shorting the spacers
Thinking heavy duty springs are necessary for better performance is ludicrous
Unless one habitually over loads / or loads near - the carrying capacity of the scoot
Suspensions need to work - not be stiff as a damn rigor mortised corpse
Ghost
Then you're over-sprung - need standard rate springs
Option 2 - reduce preload on the HD springs by shorting the spacers
Thinking heavy duty springs are necessary for better performance is ludicrous
Unless one habitually over loads / or loads near - the carrying capacity of the scoot
Suspensions need to work - not be stiff as a damn rigor mortised corpse
Ghost
Grand HDF Member
Joined: Jul 2016
Posts: 4,384
Likes: 8,742
From: Texas
You're Welcome
Ghost