Amount of travel on Flexiride swing arm...

Anything to do with mechanical, construction etc

Amount of travel on Flexiride swing arm...

Postby Dean in Eureka, CA » Thu Nov 02, 2006 9:00 pm

Question...
How much travel can I expect on a Flexiride swing arm when hitting a bump during my travels, better yet... How much tire travel should I allow for on my fender, when traveling bumpy roads.
Reason for the question is fender clearance.
There use to be a great shot of one of Cary's Camp-Inn trailers on a big spinning spit, used during their varnish application and it showed the notch they use on their skirt and the notch would give me a good idea of how much travel they allow for on the swing arm, but I just can't find the pic.
My fenders will be hard mounted to my sidewall and I don't want the tire coming up and smacking the fender when I hit a bump.
Image Image Image
User avatar
Dean in Eureka, CA
The Fogcrawler
 
Posts: 4993
Images: 69
Joined: Thu May 11, 2006 8:44 pm

Postby madjack » Thu Nov 02, 2006 9:40 pm

Dean, someone will probably jump in and correct me but I believe the bump travel was 3"s.................. 8)

p.s. remeber that with a torsion axle that the wheel travels in an arc and not straight up and down like a spring axle does...MJ
A computer lets you make more mistakes faster than any invention in human history - with the possible exceptions of handguns and tequila.
most all personal problems can be solved with the proper application of high explosives
User avatar
madjack
Site Admin
 
Posts: 15108
Images: 177
Joined: Thu Dec 02, 2004 5:27 pm
Location: Central Louisiana

Postby asianflava » Thu Nov 02, 2006 9:42 pm

The Dexter website shows the travel, it shouldn't be too different for the Flexride. The amount of travel is dependent on the start angle.
User avatar
asianflava
8000 Club
8000 Club
 
Posts: 8410
Images: 45
Joined: Mon Aug 02, 2004 5:11 am
Location: CO, Longmont
Top

Postby Nitetimes » Thu Nov 02, 2006 11:30 pm

I used to stand a piece of 2x3 tubing on it's side on top of the tire and sit the fender on it. Like MJ said, don't forget to consider the arc. If you have an up angle your fender should be a bit forward of the center of the tire if it's a down angle it should be back of center.
Rich


Image
ImageImage
-
The strongest reason for the people to retain the right to
keep and bear arms is, as a last resort, to protect themselves
against tyranny in government.
- Thomas Jefferson -
Personally, I carry a gun because I'm too young to die and too old to take a butt kickin'.
User avatar
Nitetimes
7000 Club
7000 Club
 
Posts: 7909
Images: 194
Joined: Sat Feb 12, 2005 12:44 am
Location: Butler,PA
Top

Postby Steve_Cox » Thu Nov 02, 2006 11:52 pm

Deano,

I used a couple of pieces of 4X4 for spacers (3 1/2") I just don't remember why. It looks a little high to me, but I'm pulling with a Honda CR-V so it's level. Can always raise or lower it as needed with the splines, right?

Image
Steve
User avatar
Steve_Cox
4000 Club
4000 Club
 
Posts: 4903
Images: 196
Joined: Sun Apr 03, 2005 8:46 am
Location: Albuquerque New Mexico
Top

Re: Amount of travel on Flexiride swing arm...

Postby angib » Fri Nov 03, 2006 11:57 am

Here is the angle diagram from the Flexiride page at SouthWest Wheel:

Image

So these are showing around 3" of travel from 'free' to 'bump' and 1.2-1.5" from 'loaded' to 'bump'. I believe it would be wise to have at least 1" and preferably 2" of clearance between the top of the tyre at its highest theoretical position and the underside of the fender - if nothing else, this should reduce how much the fender gets sand-blasted.

The Dexter advice is to provide 3" clearance from the 'full load' position. Their axle data sheets show around 1.0" of travel from 'full load' to 'shock load', so that's also about 2" clearance on the theoretical highest tyre position.

Andrew
User avatar
angib
5000 Club
5000 Club
 
Posts: 5783
Images: 231
Joined: Fri Apr 30, 2004 2:04 pm
Location: (Olde) England
Top

Postby Dean in Eureka, CA » Fri Nov 03, 2006 2:50 pm

Thanks ALL!!!
My earlier version of the art deco fender was 18" tall and gave me about 4" clearance. A modification to the fender, using bigger quarter elipses on the art deco part made the fender 3" taller... I liked the way it made the top edge of the fender tie in with the Indian accent stripe, but it sorta made the fender look too big. I didn't like lowering the accent stripe to the level of the original fender, because that's where my color transistion is on the dyed ply sides.... Thus, I'll leave the transistion line and accent stripe alone and revert back to the original fender.
Image Image Image
User avatar
Dean in Eureka, CA
The Fogcrawler
 
Posts: 4993
Images: 69
Joined: Thu May 11, 2006 8:44 pm
Top

Postby nubwon » Fri Nov 03, 2006 10:22 pm

as per the dexter site
"Articulation Dimensions
Dimensions are for low profile, top mount only.
Side mount is .25" higher. Allow 3" bump
clearance from full load.

I just put a little over 400 miles on my tear and I only have about 2 1/2" clearance on mine and didn't get any tire rub on the fender.
If your gonna be dumb, you gotta be tuff...
User avatar
nubwon
Teardrop Master
 
Posts: 178
Joined: Fri Oct 22, 2004 6:45 pm
Location: Louisiana
Top


Return to Teardrop Construction Tips & Techniques

Who is online

Users browsing this forum: Majestic-12 [Bot] and 2 guests