Club Chopper Forums Industrial Parts House  

Go Back   Club Chopper Forums > GENERAL CHOPPER TALK AREA > Buell/XL Forum

Welcome to Club Chopper!  The World's largest and coolest place to be on the net if you dig the following!

  •  » Custom Bikes
  •  » Killer Paint
  •  » Old School Craftsmanship
  •  » Building and Wrenching
  •  » Hot Babes
  •  » Chopper Build Logs

...then you have come to the right place!

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

Chopper Tech
Tech Article
Tech Article
Tech Article
Tech Article
Tech Article
Main Menu
Module Jump:
Club Chop Gallery

Club Chopper Gallery

Submit Your Photos!

Active Threads
SAT Motorsports rigid attempt.
Last Post: axeychrome
Posted On: Today
Replies: 40
Views: 1,648
New CFL acquisition...
Last Post: Rigid Heathen
Posted On: 10-18-2020
Replies: 3
Views: 262
Owner's manual
Last Post: golfish
Posted On: 10-16-2020
Replies: 6
Views: 263
I'm Baaaaaaaack...
Last Post: MAKO6
Posted On: 10-14-2020
Replies: 1
Views: 140
10 My First Build... an 06 CFL 2Up 2Out
Last Post: Rigid Heathen
Posted On: 10-13-2020
Replies: 19
Views: 553
More...
  #1 (permalink)  
Old 11-23-2007, 10:25 PM
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Aug 2005
Location: Port Moody, BC
Bike Year, Make, Engine: 93 Sportster - Chopd, Stretched n Raked
Posts: 162
Not Ranked     
Does anyone here know much about Girder front ends?

Does anyone here know much about Girder front ends?

Thinking about getting one but don't know fuck all about them.

Can you adjust them for rake?


My current front end on my Sporty is a regular 4 over narrowglide, no rake in the trees.

I have 40 degree neck rake and have some flop at low speeds. I measured it and I figured I could go 3 - 5 degrees in the trees.(and kick the front end out further)

Fuckin raked trees seem expensive and hard to find narrowglide ones - every body wants you to go mid or wide. I want to keep it narrow.

I thought at this point I might as well go with a springer or a girder(preferred)if I could find a decent priced one. Always wanted a girder.

Just don't know fuck all about them. Want to make sure I fix the trail so that's why I was asking about adjusting the rake. I know with a springer it's done with the rockers

KongBastard
Reply With Quote
Sponsored Links
  #2 (permalink)  
Old 11-24-2007, 04:14 AM
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Mar 2005
Location: Space Coast, FL
Bike Year, Make, Engine: sporty -an evo or two - da pan.
Posts: 1,018
Send a message via AIM to bite me Send a message via Yahoo to bite me
Not Ranked     
The rake and trail on a girder front end does not change as much as the front shock system expands and contracts under load. This is because the contraction/expansion point of the front end is clustered around the stearing head and not between it and the front axel. Its a geometry thing. Everything else is the same as far as options for rake and trail fit up. You need to stay in the sweet spot with those numbers. Structurally they are a triangulated design so if properly built they should be stronger and lighter than the other two types of front ends. Rake and trail do not affect the spring action of the front end as much as they do with springer and hydraulic front ends. You need three inches. Even with that said you can adjust that on a girder by building new lead links. I have never run one on a frame that has been raked.
Reply With Quote
  #3 (permalink)  
Old 11-24-2007, 04:48 AM
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Mar 2005
Location: Cedar Rapids, IA
Bike Year, Make, Engine: 100" Chopper, '56 FLE PAN
Posts: 1,211
Not Ranked     
In my personal opinion a good functioning girder should be custom built for a specific bike. The connecting links are typically around 4.25" long. Changing the connecting links only does minor changes in the trail numbers. If you have flop then you want to reduce trail and off the shelf girders have little room to shorten the links. On my bike the rake is at 42 and the main leg of my girder is right around 43. With a little time on the drawing board you might be able to find a girder off the shelf that will work for the trail numbers you want.

Some of the nicest looking girders are made by George Counes at Spartan Frameworks,$2,100 raw. Gambler makes girders buy I don't know how well that company is operating since it change of ownership.

Then you have Jaxons ISG fork which is an improved version of the Harmon spirder. He does awsome work and his narrow version is tight and kickass. His is around $1,200.00. RoadRat.biz. He will take all the measurements that you give him and build it custom to your bike. He has guys riding around on bikes with less than 2" of trail and they love them.

Building one yourself is not that big of an endeavor if your handy.
Reply With Quote
  #4 (permalink)  
Old 11-29-2007, 12:05 PM
jsdiamond's Avatar
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Jun 2005
Location: Coolville, CA
Bike Year, Make, Engine: 1976 Shovel
Posts: 3,645
Not Ranked     
Some girders have an adjustable feature which is really just a set of holes where you mount the side rocker-links on the trees. The forward-most holes kick out the rake a few degrees; while the nearer ones lessen it.
__________________
I take my bourbon, like my women ~ 19 years old and mixed up with coke.
Reply With Quote
  #5 (permalink)  
Old 11-29-2007, 03:00 PM
DC ORIGINAL's Avatar
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Dec 2003
Location: Costa Mexico, CA
Posts: 158
Not Ranked     
Quote:
Originally Posted by jsdiamond
Some girders have an adjustable feature which is really just a set of holes where you mount the side rocker-links on the trees. The forward-most holes kick out the rake a few degrees; while the nearer ones lessen it.
This is similar to how the new RMD Billet girder is set-up. Adjustable from around 3-7 degrees depending on where you bolt it up. This thing is like nothing else out there. No steel, no tubing, no bending and no welding. Completely machined out of billet aluminum and uses a Penske shock!

http://www.rmdbillet.com/girder.html






Last edited by DC ORIGINAL; 11-29-2007 at 03:02 PM..
Reply With Quote
  #6 (permalink)  
Old 11-29-2007, 07:58 PM
jsdiamond's Avatar
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Jun 2005
Location: Coolville, CA
Bike Year, Make, Engine: 1976 Shovel
Posts: 3,645
Not Ranked     
Quote:
No steel, no tubing, no bending and no welding. Completely machined out of billet aluminum and uses a Penske shock!
Holy-moly, that is beautiful!
__________________
I take my bourbon, like my women ~ 19 years old and mixed up with coke.
Reply With Quote
  #7 (permalink)  
Old 11-30-2007, 01:15 PM
DC ORIGINAL's Avatar
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Dec 2003
Location: Costa Mexico, CA
Posts: 158
Not Ranked     
Yea, it's definitely a piece of art. A alot of machine hours.
__________________
Reply With Quote
  #8 (permalink)  
Old 01-23-2008, 09:13 AM
PWH PWH is offline
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Mar 2005
Location: senoia, ga
Bike Year, Make, Engine: working on it
Posts: 48
Not Ranked     
That's nice but, I don't care for the 'thick' legs.
Reply With Quote
  #9 (permalink)  
Old 01-23-2008, 09:35 AM
sportyracer2's Avatar
Club Chopper Member
Visit my Photo Gallery
 
Join Date: May 2005
Location: El Dorado, KS
Bike Year, Make, Engine: mulitple
Posts: 1,002
Not Ranked     
Seems like I've seen that front end before on an R-1?
Reply With Quote
  #10 (permalink)  
Old 01-23-2008, 05:23 PM
bluefin907's Avatar
CC Member/Contributor
Visit my Photo Gallery
 
Join Date: Sep 2005
Location: No-Cal, Ca
Bike Year, Make, Engine: custom chopper 124
Posts: 1,966
Send a message via AIM to bluefin907
Not Ranked     
I like the look of those girders. I would use something like that for sure
__________________
Movin on up to the east side
Reply With Quote
  #11 (permalink)  
Old 01-23-2008, 06:21 PM
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Apr 2007
Location: market drayton,uk, na
Bike Year, Make, Engine: 09,S&S 96"Chop.
Posts: 18
Not Ranked     
Does anyone here have any detailed drawings of girder forks,or does anyone
sell plans,as they seem to command big money?
Reply With Quote
  #12 (permalink)  
Old 06-22-2008, 07:26 PM
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Apr 2008
Location: chitown, IL
Bike Year, Make, Engine: Shovelhead CFL in the works
Posts: 53
Not Ranked     
the chopper builders handbook sells a CD that has a step by step guide to building a girder. Plan on doing one myself.
Reply With Quote
  #13 (permalink)  
Old 06-24-2008, 05:49 PM
rottenralph's Avatar
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Jan 2005
Location: cordova, TN
Bike Year, Make, Engine: 1993, harley, xl1200
Posts: 754
Not Ranked     
It certainly is a beautiful front end. 3500 bucks is a little much for my budget but they certainly don't look cheap at all.
__________________
Rottenralph 1993 1200 sportster super sport with JET stage 3 heads, 10.5 to 1 wisecos, s&s with thunderjet, dyna ignition, and too much more to list. . If it aint broke get a bigger hammer .
Reply With Quote
  #14 (permalink)  
Old 09-15-2020, 07:08 AM
Junior Member
Visit my Photo Gallery
 
Join Date: Sep 2020
Location: Oakland, Ca
Posts: 3
Not Ranked     
[quote=DC ORIGINAL;696735]This is similar to how the new RMD Billet girder is set-up. Adjustable from around 3-7 degrees depending on where you bolt it up. This thing is like nothing else out there. No steel, no tubing, no bending and no welding. Completely machined out of billet aluminum and uses a Penske shock!

http://www.rmdbillet.com/girder.html


Does anyone know where there is a used RMB Billet front end for sale (like the black one) thanks
Reply With Quote
Sponsored Links
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -7. The time now is 05:11 AM.


vBulletin skins developed by: eXtremepixels
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.0

CC Policy

The representations expressed are the representations and opinions of the clubchopper.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners or moderators. clubchopper.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you or have been given the expressed written consent to post. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). For full policy, please click the "CC policy" link. Thank you for visiting the clubchopper.com
Links monetized by VigLink