EVO All Evo Model Discussion

Can you get a negative degree triple tree?

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Old Jul 7, 2020 | 09:18 AM
  #11  
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Originally Posted by 98hotrodfatboy
Pretty sure the Fatboy and Heritage was 32.. The custom was the only one that was 33° it made up for the 2" longer length tubes..
Bassackwards.. I'm afraid... the Tubes Caused the Change in Rake..The MoCo been doing this a very long time... without any Changes to the Basic Frame whatsoever..
Checkm the "advertised" rake of all of the various models of 4 speed...all on exactly the same Frame!!!!
FXR even Changes... and that Frame decidedly Did Not..
Moco is the Cause of "Rake Confusion"... the Rake implies that the Frame changed... it did Not.. what really happened is the Trail changed...
 

Last edited by Racepres; Jul 7, 2020 at 09:20 AM.
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Old Jul 7, 2020 | 09:35 AM
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Originally Posted by Racepres
FWIW all FLH type [41mm] trees since the Duo-glide are negative 3 degrees [or so]
this Increases Trail, as if one had Raked the Frame..
Sidecar and Tricycle trees are Raked... to the Point of negative trail numbers sometimes... for Lighter Steering
Decidedly Unsafe for a 2 Wheeler... Back when I started all this H-D Stuff, many ...I mean Lots of... folks went with "Looks" but ended up Bustin their *** because they did Not know this Simple GIF

ok so if you put let’s say negative 2 degree trees on you’ll increase the trail? I’m wanting to rake in towards the frame not out. I understand it all changes the geometry but everything that I have read says the custom and standards have a positive 2 degree rake in the trees. I can’t find any type of negative rake on any search so I guess I’ll just have to find a set of 0 degree trees.
 
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Old Jul 7, 2020 | 10:11 AM
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Originally Posted by Evo91
ok so if you put let’s say negative 2 degree trees on you’ll increase the trail? I’m wanting to rake in towards the frame not out. I understand it all changes the geometry but everything that I have read says the custom and standards have a positive 2 degree rake in the trees. I can’t find any type of negative rake on any search so I guess I’ll just have to find a set of 0 degree trees.
any post 1958, FLH [Not "T"] has negative 3 degrees... Increasing trail numbers, while tucking the front tire in closer to the Frame as well...
Stare at the GIF till ya get it...Gotta go "wide glide" [Not FXWG which are Raked trees] to do 'er on the Cheap tho..
 
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Old Jul 7, 2020 | 10:38 AM
  #14  
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Originally Posted by Racepres
any post 1958, FLH [Not "T"] has negative 3 degrees... Increasing trail numbers, while tucking the front tire in closer to the Frame as well...
Stare at the GIF till ya get it...Gotta go "wide glide" [Not FXWG which are Raked trees] to do 'er on the Cheap tho..

i do get it, but I have a 1990 fxstc not a FLH...my fxstc is wide glide that has a positive 2 degree tree. Are you saying I can put a flh front end on it?
 
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Old Jul 7, 2020 | 11:12 AM
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Originally Posted by Evo91
i do get it, but I have a 1990 fxstc not a FLH...my fxstc is wide glide that has a positive 2 degree tree. Are you saying I can put a flh front end on it?
This this doesn't make sense.. Your FXSTC is a soft tail custom and then you're saying wide glide which is an FXD.. Which one is it because there are different rakes for the different chassis.. also a negative degree tree will decrease your trail...
Sorry... I edited because I didn't realize I said rake when I meant trail... my bad..
 

Last edited by 98hotrodfatboy; Jul 7, 2020 at 02:50 PM.
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Old Jul 7, 2020 | 11:26 AM
  #16  
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Originally Posted by 98hotrodfatboy
This this doesn't make sense.. Your FXSTC is a soft tail custom and then you're saying wide glide which is an FXD.. Which one is it because there are different rakes for the different chassis.. also a negative degree tree will decrease your rake..
it is a wide glide front end. There’s narrow, mid, and wide. Correct? Dynas have mid glide front ends then there is the dyna wide glide with a wide glide front end. Please correct me if I am wrong or I’m not using correct terminology.
 
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Old Jul 7, 2020 | 12:43 PM
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Originally Posted by 98hotrodfatboy
This this doesn't make sense.. Your FXSTC is a soft tail custom and then you're saying wide glide which is an FXD.. Which one is it because there are different rakes for the different chassis.. also a negative degree tree will decrease your rake..
Only cut and weld of a Frame will Change Rake... Period... effective Rake is a function of Tube length...and really only Changes Trail...
so ... Yes a negative Raked Tree will Increase Trail... exactly like Increasing Rake on the Frame..
Do Not let MoCo jargon influence the True Meaning/Functions...they are Only Interested in Marketing!!!
 
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Old Jul 7, 2020 | 01:11 PM
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Man I just wanted to decrease the rake on my bike and bring the front end in a little without modifying the frame. If anyone knows a way I’d appreciate it.
 
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Old Jul 7, 2020 | 02:10 PM
  #19  
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Originally Posted by Evo91
Man I just wanted to decrease the rake on my bike and bring the front end in a little without modifying the frame. If anyone knows a way I’d appreciate it.
Wide Glide really means about Nothing...as the Dyna wide glide is Not the FXWG "True Wide Glide" is Not the FLH Wide Glide... which is Really a 41mm 4 speed Dresser ...
Shove some tubes in the lower tree and Get a Look... or a picture from the side comparing Stem to Tube...
Lots of Folks Chromed the old DuoGlide Trees, which is what I would Use... Minus Three Degrees... so Increased Trail...while actually tucking wheel closer to frame..Using 3 degree Cups, backwards for reduced Trail [real de-Rake, just like cut/weld Frame], with the above combination brings wheel closer yet... but Steering is Back to the O.E. trail numbers...

Note a cut/weld Derake of a frame will result in the Wallmart, Floppy wheel on the cart syndrome!!!! And you will bust yer ***!!!!!
and so will a Raked [positive] Tree set-up..Same effect on Trail Numbers...

The Original Question was "can you get a minus degree triple tree".... The Answer is Yes... the Shovelhead [or Panhead] Duoglide tree, is minus 3 degrees....
My statement is... this will Not have a negative affect on handling... acting just like any other method which Increases trail numbers!!!
 

Last edited by Racepres; Jul 7, 2020 at 02:17 PM.
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Old Jul 7, 2020 | 02:26 PM
  #20  
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Originally Posted by Racepres
Wide Glide really means about Nothing...as the Dyna wide glide is Not the FXWG "True Wide Glide" is Not the FLH Wide Glide... which is Really a 41mm 4 speed Dresser ...
Shove some tubes in the lower tree and Get a Look... or a picture from the side comparing Stem to Tube...
Lots of Folks Chromed the old DuoGlide Trees, which is what I would Use... Minus Three Degrees... so Increased Trail...while actually tucking wheel closer to frame..Using 3 degree Cups, backwards for reduced Trail [real de-Rake, just like cut/weld Frame], with the above combination brings wheel closer yet... but Steering is Back to the O.E. trail numbers...

Note a cut/weld Derake of a frame will result in the Wallmart, Floppy wheel on the cart syndrome!!!! And you will bust yer ***!!!!!
and so will a Raked [positive] Tree set-up..Same effect on Trail Numbers...

The Original Question was "can you get a minus degree triple tree".... The Answer is Yes... the Shovelhead [or Panhead] Duoglide tree, is minus 3 degrees....
My statement is... this will Not have a negative affect on handling... acting just like any other method which Increases trail numbers!!!
awesome, that’s what I was looking for. So the duoglide will fit right into my stock neck?
also, could I go with some 0 degree trees and then do the 3 degree cups backwards and that would hardly change my trail? I’m sorry Im a noobie to all of this and trying to figure it out.
 

Last edited by Evo91; Jul 7, 2020 at 02:45 PM.
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