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Cycle Fabrication Old School, Choppers, Bobbers, and Customs


Cycle Fabrication Old School, Choppers, Bobbers, and Customs

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  #1  
Old 10-09-2009, 12:10 PM
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chopit chopit is offline
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'Harman Girder Forks'

I'm in a bit of a pridicament over a set of 'Harman Girder Forks'-I am
currently about to build a new chopper,I bought the forks from ebay
they are 'original' -1970's,but they are to long for my application by
around 12".Something you just cant work out until you have the frame
and forks together 'In the Flesh'.
Lots of Guys are saying dont 'cut' them as they are very rare,I know
this,but you cant 'just' buy a set off the peg,I know there are other
manufacturers that can build them,but these are what I want to use.
Down to business!They are made from 1" chromemoly tube,not sure of
the wall thickness,what I need to 'know' is once I cut them,like I said
I need to remove around 12", 'Whats the best,strongest,for long term,
way of joining them back together,retaininig the strength,and Integrity
of the join with no future 'cracking' or anything 'Nasty' ill effects turning
up.
I have been warned off solid bar 'slugs'to join them back together,
(same diameter,2-3" either side of the join)
as this would 'cause' two more issues,each end of the 'slugs',another
'slugging' sugguestion,was to 'Taper' the 'slugs',meaning the correct
thickness at the join,tapering away thinner at either end of 'slug',
so as there is no 'contact' between 'Taper' and inside tube diameter.another
'slugging 'arrangement sugguested was to use a piece of tube inbetween
the join????????
Any Help very much appreciated,with solutions,sugguestions,previous
experiences,100% no problem 'fixes',done this type of job loads of times
before.Thanks in Advance
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  #2  
Old 10-09-2009, 12:26 PM
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Completely unfamiliar with these so no help... Could I get a picture of these?

E
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  #3  
Old 10-09-2009, 03:19 PM
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JaysinSpaceman JaysinSpaceman is offline
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I am curious, if you have these forks that are too long as a pattern/example why not just build a new girder the right length? Then sell the old one and recoup your cash. I was a H-D mechanic for 10 years and I did a lot of repair/resto work on old bikes and choppers and I can say that I wouldn't want to shorten a Harman front end on a bike that gets ridden a lot. They are very strong front ends but don't have much travel and when they bottom they see a huge amount of stress and flex a lot (fun to watch as you ride down the road). I vote for building a new "Harman" style front end, and one that is built for "your" bike will ride much better.

Here's a linky to some pictures.

Jaysin
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  #4  
Old 10-10-2009, 12:16 AM
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chopit chopit is offline
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'Harman Girder Forks'.

Thanks Jaysin, its a coincidence I sent a email to Bill Holland of executive
choppers yesterday,his answer I recieved back today, was very similar to yours in respect,dont cut the forks,have a set made to suit.Thats what I
will be doing,Thanks Again for your advice.
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  #5  
Old 10-12-2009, 10:49 PM
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goodtimen1 goodtimen1 is offline
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What did you do?

Tell me you didnt cut those, please? I have been scouring the net for a good set of those same forks. Long as can be. Do you still have them? You looking to sell them?
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  #6  
Old 10-14-2009, 08:03 AM
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Harman Girder Forks.

I have not cut 'Them' they will stay the same as the day that they were
created,I will be having a new set made for the bike,yes I still have them,
I will be picking them up on saturday,as they are 100 miles away,in the
workshop where the frame is being 'Goosenecked'.I can then measure them
up over the weekend,as there are a few people that have contacted me
about selling them,I will get some picture's of them too.

Yes, They are: 'FOR SALE'
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  #7  
Old 10-14-2009, 09:04 AM
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Sweet

When you get them done, if you wouldn't mind sending me some pics on my email I would appreciate it. Its tonyb82_af@yahoo.com and my number is 618-980-7409 thanks.
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  #8  
Old 09-24-2010, 02:22 PM
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'Harman Girder Forks'

Here's the new build making the way forward-with 'said' Harman girders.
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  #9  
Old 09-24-2010, 02:32 PM
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'Harman Girder Forks'

Harman Girder Forks
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  #10  
Old 09-24-2010, 02:42 PM
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'Harman Girder Forks'

The 'Goosenecked Frame' before forks fitted-
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  #11  
Old 09-24-2010, 02:51 PM
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damn, that looks good...
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  #12  
Old 09-24-2010, 03:07 PM
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Quote:
Originally Posted by wheels4 View Post
damn, that looks good...
x2!
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  #13  
Old 11-27-2010, 07:35 PM
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'Bike now finished'

Bike now finished late this afternoon


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  #14  
Old 11-27-2010, 07:38 PM
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Bike now finished

Bike now finished late this afternoon


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  #15  
Old 11-27-2010, 07:42 PM
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Bike now finished.

Last one,Bike now finished late this afternoon


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  #16  
Old 12-28-2010, 03:15 AM
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I would like to congratulate chopit for his achievement. His bike is so cute. But I really wonder whether the frame is strong or not. I am having this doubt because it looks too thin. I weigh nearly 130 kg and I donít think that it is going to hold my weight. Most probably it will bend.
_______________
Workholding

Last edited by zabc; 01-02-2011 at 01:52 PM.
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  #17  
Old 12-28-2010, 12:33 PM
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smosher 604 smosher 604 is offline
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i think heel be fine round tubing is super strong i meen if you can build full size truck suspension outa it this app should hold up unless the whole frame is black pipe which i doubt
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  #18  
Old 03-17-2011, 03:41 PM
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'Harman Girder Forks'

'Bike now finished'-Maiden voyage done,no real problems,just need to raise
the front fender off the tire as when going over a pothole(by accident) the
underside fender nuts just dug in the tire about a sixteenth of an inch and
about 3 inches long.
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  #19  
Old 03-20-2011, 09:59 PM
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'Harman Girder Forks'

The frame is definately not made out of 'Black Pipe',its all seamless tube,and
I'm 116 kg,just done 200 miles on the bike yesterday with no problems,I have
every confidence in the frame,and it handles really well.
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  #20  
Old 01-02-2012, 06:49 PM
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Latest pic-It won 'Best in show' out of over 300 other custom choppers!


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