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Author Topic: leading link/springer type forks  (Read 11003 times)
klogan45
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« on: October 24, 2006, 08:11:08 AM »

Saw this and thought of you!!!!!!
Hi guys, here's a link to a good trike sit. I've emailed the owner , Bob, and he is very happy to have a link to his site. Some good stuff here and certainly worth a look.
http://www.angelfire.com/rebellion/trikerbob60/index.html[/url]
Regards
Keith
take care ride safe have fun
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Manky Monkey
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« Reply #1 on: October 24, 2006, 09:12:12 AM »

Some interesting stuff there.
Got to admit, it's not to my personal taste, but I've never seen a full build of a VW frame so good to see how the design comes together. The leading link piece is quite informative too.
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C J
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« Reply #2 on: October 24, 2006, 09:41:45 PM »

Hi guys,just been reading about building these forks, is setting trail critical? I have set up my  headstock so it looks right(about 45-50 degrees) but I didnt know about setting trail!!!. I had a quick check with a straight edge running on the same line as the headstock and it touches the ground a good bit in front of the wheel spindle!!.Am I going to have to start again?, what effect does this have on handling etc. AAAAARRRRRRGGGGG  HELP.  C J.
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Manky Monkey
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« Reply #3 on: October 24, 2006, 09:54:33 PM »

Ska Man & I were talking about this only a couple of days ago.
We've never checked the trail on any of our trikes! Ours are all about 45 degrees, except Flap's, which is getting on for 50. They've all been built on the "if it looks right, it probably is" principle -& they all handle with no problems at all.   
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BikerGran
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« Reply #4 on: October 25, 2006, 12:13:04 AM »

I've only flicked thru but I reckon the step by step phots and write up are a really good thing for someone starting out.

However I have to say the end product is pretty ugly!
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reliantman
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« Reply #5 on: October 25, 2006, 08:08:43 AM »

Oi fink I would brace them with some 25mm box as well.
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Manky Monkey
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« Reply #6 on: October 25, 2006, 12:44:29 PM »

I like springers & girders, not so keen on leading links, but never really looked closely at their construction. Don't know if I'd be up to building a set from scratch.
Step by step stuff is always good, the simpler the better. Whenever I talk frame building with those that haven't tried it, the most common response is "I wouldn't know where to start". It ain't rocket science, but it's pretty daunting bending that first tube. Always interesting to see just how projects have been put together.   
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reliantman
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« Reply #7 on: October 25, 2006, 02:40:21 PM »

Andy.
Get your headstock, put the longest broom handle or rake (or even better, a laser pointer) dead center down it and make a mark on the floor.
Then imagine a line vertically through the spindle of your wheel and ensure it is not more than 1 1/2 inches from your headstock line on the floor.
From this you can work out how long your fork legs and swingarm need to be.
Chris put this in his peice on making leading links in BSH ages ago, and it is spot on.
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Manky Monkey
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« Reply #8 on: October 25, 2006, 10:55:39 PM »

Yeah, I understand the geometry of it all, but just think leading links look bulky -not very pretty.
As I said, our trikes' trail's probably nowhere near what the books say it should be, but they all handle very nicely thank you!  Smiley
Useful info though.
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reliantman
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« Reply #9 on: October 26, 2006, 07:27:17 AM »

saw these on fleabay.
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« Reply #10 on: October 26, 2006, 11:27:23 AM »

Probably mechanically clever, but got to admit, not something I'd want hanging off the front of my trike -the automotive equivalent of those big teeth braces Yank kids wear! 
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reliantman
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« Reply #11 on: October 26, 2006, 06:55:36 PM »

Bit like a cow catcher.  Cheesy
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Manky Monkey
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« Reply #12 on: October 26, 2006, 07:46:19 PM »

 Grin Never ridden a trike with them fitted -maybe it'd be far superior to teles but I've never had a problem with any of mine.
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reliantman
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« Reply #13 on: October 26, 2006, 10:13:29 PM »

Stick with what works.
I think they are of more benefit to a heavier trike.
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klogan45
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« Reply #14 on: October 28, 2006, 06:22:35 PM »

had a look at the pic that was posted from fleabay, yeuch...... looks like some kind of torture device.
take care ride safe have fun
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Confucius say woman who flies upside down has crack up!

He who holds The Angle Grinder of Destiny holds the fate of bikekind in his hands.

Where did that 13mm spanner go then?
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