wobbleing baggers?

Started by jdilly, March 03, 2012, 04:04:29 AM

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jdilly

anybody have any tips on chassis setup?

Stainless1

How about a little more information?  Building from scratch.... using a 50s Harley.. or a new BMW... 
Stainless
Red Hat 228.039, 2001, 65ci, Bockscar Lakester #1000 with a little N2O

jdilly

I have a 2000 se road glide with a turbo.It has about 180 hp.I went to limestone last year and had a bad wobble,and i have heard a hundred different sugestions from street guys but not from land speed guys any thoughts would be great.

Seldom Seen Slim

Bad wobble at what speed?  How "stock" is the suspension/suspension settings?  How much weight in/on the bike?  What tires?  We'll try to get there yet. :?
Jon E. Wennerberg
a/k/a Seldom Seen Slim
Skandia, Michigan
(that's way up north)
2 Club member x2
Owner of landracing.com

Captthundarr

Jdilly, details, details - need more/all info. or the rplies will be like "did you tighten all the nuts?"
Live,Laugh, Love /  Jack Scratch Racing /ECTA   
Amy Hartman-Driver, Frank Hartman-everthing else.
C/GALT 137.65 Ohio Mile check that 144.12 2013, AA/GALT 159.34 Ohio Mile 2014. B/GALT 180.577 RECORD 6/15

Stainless1

Quote from: Captthundarr on March 03, 2012, 09:08:17 AM
Jdilly, details, details - need more/all info. or the rplies will be like "did you tighten all the nuts?"

I'll bet a good wobble tightened at least a couple of them...  :roll:

sorry I was not specific enough to say give us more details about your bike and problem.  Speed wobble can be caused by loose bearings in the neck or swingarm... flex in the frame... wheel alignment

tell us what specifically happened and what you have done.

Stainless
Red Hat 228.039, 2001, 65ci, Bockscar Lakester #1000 with a little N2O

jdilly

my bike was basicly stock,i lowered the frount forks,installed a steering damper. shorter fox shocks on the back.avon tires130 /16 frount,160/16 rear. stock motor mounts. i have reserched a lot over the winter.i have bought tri-glide tripple trees that kick the forks out a few degrees.and have plans to buy glide pro motor mounts and  line up the wheels.put a brace on the motor to the frame.

55chevr

Have tires and wheels dynamically balanced ... check wheel bearings ... lowering legs thru the triple trees takes out caster, might want to bring that back to stock ... there is a lot to go over especially on a stock raked bike ... Joe

nrhs sales

The stock front forks on a Road Glide are totally  set up wrong for high speeds. You at a minimum need to install a Progressive monotube fork cartridge kits.

If you do not know what that is call me at 303-702-1600 and I can get you a set for $340.

wobblywalrus

Dilly, is your wobble under power or on shut down?  Is there something that triggers it?

jdilly

under power it starts walling around 100 and doesnt stop till i slow way down,it feels like it is in the rear.i think that my trail is off with the tri-glide trees that i just installed.so i am going to install my stock trees that will bring my trail back to 6.5 inches, install a brace and change the motormounts, put better fork and shocks and head to the turnpike for testing!

55chevr

I would go back to stock triple trees first ... Joe

Uncle Jimbo

#12
I totally agree with Joe - get rid of the raked trees.  If you need to increase the trail of the front end, rake the steering head.  How much did you lower the front tubes.  That was a mistake I made 3 yrs. ago - had to change my shorts twice that year.  How is the attitude of the frame sitting ? Does it sit fairly level front to back ? I would think 6in trail should be good to go.
keep at it - with the help of some of the ole gray beards here, you'll get it right. They helped me plenty.

Jimbo
From days of old, when knights were bold, and rode Iron Horses
24 Land Speed Records
M/PP 1350 AMA/BUB - M/CPG 1350 - M/CPF 1350 - LTA
M/PG 1650 - M/PF 1650 - AMA/BUB
A/PG 1650 - A/PF 1650 -  ECTA - LTA
Top speed to date 194.664

manta22

Check your toe setting. A little toe-out and it will be all over the place.

Regards, Neil  Tucson, AZ
Regards, Neil  Tucson, AZ

Peter Jack

We're talking bikes here Neil. Toe ain't that critical!  :evil:

Pete