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  1. #1

    Default Help needed choosing a springer and top fork clamp

    Hello,

    Never bought a springer fork but I want one on my 1973 Shovelhead with a rigid wishbone frame and a raked neck...
    I don't know how much raked.. I measured a stock length fork, around 48,5cm, will look great on my shovel with a 21" wheel.

    So that means to be this one: https://www.wwag.com/cgi-bin/WebObje...?page=!WW18457

    Saw also difference between inline and offset. Think I go for a inline, is that the best for a stock length?
    Posted a picture at the attachment.
    Is there something I need to know when I buy a springer?

    How about the top fork clamp, there are multiple of them. https://www.wwag.com/cgi-bin/WebObje...page=%21161252
    Original style, is it just mount it to the fork and use the riser adapters for the adapters?

    Like to learn about it and buy one

    Click image for larger version. 

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  2. #2
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    Quote Originally Posted by HarmBMW View Post
    Is there something I need to know when I buy a springer?

    Yes.......... You need to know what the rake of your frame...... Not knowing isn't any help to help you.........

    You need to figure it out...........

  3. #3
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    Quote Originally Posted by HarmBMW View Post
    How about the top fork clamp, there are multiple of them.

    It really depends on you, what handlebars are you planning on running.......
    Last edited by Tattooo; 10-15-2019 at 2:57 PM.

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    Quote Originally Posted by HarmBMW View Post
    Saw also difference between inline and offset. Think I go for a inline, is that the best for a stock length?
    Inline and offset?????? There really isn't any difference to speak of........ What matters is which one you like the best............

    The rake in your frame is all that matters at this point..............

  5. #5
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    Quote Originally Posted by HarmBMW View Post

    Click image for larger version. 

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    Oh by the way.............. That's a damn nice looking bike to start with.........

  6. #6

    Default

    Thanks for the replies
    So far I can't track down what kind of frame it is. From what I think with the information I have, it's a Santee http://www.wpsracing.com/saclstfrwiri.html It has a number S007185 stamped on the front of the head tube, but can't find any information about Santee frame numbers.
    But I measured it today, from what I measured my frame rake is 40 degrees...

  7. #7
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    I can help ...

    Here's what you need to do ...
    Set up the bike frame to the height you would like it to be ...
    Then with a angle finder stuck to a fork leg see what you have ...



    Post your findings and I'll run a program on it ...

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    With an offset springer you can turn the springer more before it hits the frame as the back legs are farther from the neckpost. Saw some inline springers that had not much movement turning side to side.
    On this Butt's springer top tree, you can see how much the rear leg (outer) holes are ahead of the middle neckpost hole:
    Click image for larger version. 

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  9. #9

    Default

    I got the frame on the correct height. I measured it with my iPhone app (hehe), calibrate it horizontal and stuck to a fork leg it has 40 degrees.
    Also I have measured it by making a triangle with a small rope and calculate it, also 40 degrees. See screenshot.
    Click image for larger version. 

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    How accurately must it be measured?

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    Quote Originally Posted by HarmBMW View Post
    How accurately must it be measured?
    I believe your close enough...... It looks like 40 to me............ That's what my Knuckle is...............

  11. #11

    Default

    So I believe the fork in the link in start post is the correct one?
    The stance is good. Measured all, height from ground to axle etc. All looks good to me.

    This fork clamp: https://www.wwag.com/cgi-bin/WebObje...page=%21161252
    Is that the correct one to fit with these adapters: https://www.wwag.com/cgi-bin/WebObje...?page=%2140451
    So I can fit risers on it.

  12. #12
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    Quote Originally Posted by HarmBMW View Post
    So I can fit risers on it.

    It depends on the risers your wanting to use...........

  13. #13

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    Risers like these one.
    Click image for larger version. 

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  14. #14
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    It looks like they are the right adapters(stepped studs), which fit in the rear leg and allow the risers you have to fit the top tree. Do you know the internal thread of your risers? What are the diameter of the bottom of your risers? Wondering if they are larger diameter than the back leg of the springer - and just sit inside the hole of the top tree on top of the back leg of the springer, instead of sitting on the top of the top tree.
    Last edited by TriNortchopz; 10-21-2019 at 7:16 AM. Reason: thread pitch

  15. #15

    Default

    Don’t know the thread of the risers, but I think that won’t be a problem. Will look for it. Diameter from the risers I have at the moment is 22,5mm.

  16. #16

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    I have bought this one: https://www.wwag.com/cgi-bin/WebObje...page=%21118898 but the height is too large to mount a top clamp on it.

    So i put a nut on it, do i need to fill the space between the nut and the top fork clamp? See attachment.
    Click image for larger version. 

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  17. #17
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    Yes, you need the proper top nut between the bearing and the bottom of the top clamp.

    Note how the top of the bearing adjuster nut has a spigot on it - that fits into the middle hole of the upper clamp.
    The crown nut (on the top of the upper clamp) should also have a spigot on it to fit into the middle hole of the upper top clamp.
    What is the length of the bearing adjuster nut you got? I see them offered in 39mm and 36mm lengths for the 1"-24 thread, and 53mm length in the 7/8" - 24 thread.

    What is the height of nut you need?

    Is the bottom of the steering stem seated properly in the lower clamp on the springer?
    Is there supposed to be a spacer between the bottom bearing and the bottom clamp? Or is there a spacer in there that shouldn't be?
    Is the bottom bearing race fully seating in the frame neck?

    The Paughco top nut on that web page has a 35mm length with a 1" -24 thread...is that an option?

    Here is a top nut and crown nut from a different manufacturer as another example to look at:
    Click image for larger version. 

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    Click image for larger version. 

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    Last edited by TriNortchopz; 4 Weeks Ago at 8:45 PM. Reason: pic assembled

  18. #18

    Default

    The bearing adjuster I got is the 36mm (not on pic). But it's too high for about 10 mm I think, can't measure at the moment. So that's the reason I have installed now a simple nut. Fork is correct mounted, but now I need to fill up the space. I can cut the adjuster and weld it together..
    I have Timken bearings.

    Or buy a new nut which has the correct height

  19. #19
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    I would first confirm height of top nut needed, then check with supplier for one the correct length. Also check with other suppliers if they can't get you the one you need, such as Paughco. Another option is a spacer between the nut with the spigot you have now and the bearing. If needed, modify a nut to fit.

    Interesting that the guy in this thread also had to cut the top nut by about a half inch to fit with Timken bearings; the top nut was 1 3/16" high (~30mm):

    2019 Thread: Springer top nut questions
    http://www.chopcult.com/forum/showthread.php?t=52939
    Last edited by TriNortchopz; 4 Weeks Ago at 7:25 AM. Reason: sp

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