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  1. #1
    Fresh Fish Wht da1's Avatar
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    Question TKP Trucks- Measuring angles?

    How exactly do I measure the effective angle Of Tkp trucks?
    I have a set of indys that are stated as 42*, and rkps are generally 50*, so how do i measure it if it were, say, a Bennett?
    All help appreciated.


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  3. #2
    Addicted Cruiser bamboopusher's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    Use a protractor.

  4. #3
    Fresh Fish Wht da1's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    That would produce a kingpin angle of 15* degrees on most Tkp trucks. where do i measure from/to?

  5. #4
    Concrete Kahuna distractingphoenix's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    Quote Originally Posted by Wht da1 View Post
    That would produce a kingpin angle of 15* degrees on most Tkp trucks. where do i measure from/to?
    I think from kingpin to a plane that's perpendicular to the baseplate.
    Attached Images Attached Images  
    Quote Originally Posted by cawlin View Post
    Sometimes it comes down to the size of your nuts, not your hardware.

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    Addicted Cruiser bamboopusher's Avatar
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    Default Re: TKP Trucks- Measuring angles?

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    Does this help? My first reaction was for you to track down a protractor.

  7. #6
    Addicted Cruiser bamboopusher's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    Quote Originally Posted by distractingphoenix View Post
    Baseplate and pivot. This picture is RKP, but principle is the same.

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    Dang it you beat me..... When I posted I saw that I was after you oh well.

  8. #7
    Concrete Kahuna distractingphoenix's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    Quote Originally Posted by bamboopusher View Post
    Dang it you beat me..... When I posted I saw that I was after you oh well.
    I just realized it's wrong. For TKP, it's the kingpin angle. The pivot angle and kingpin angle for TKP are not the same.
    Quote Originally Posted by cawlin View Post
    Sometimes it comes down to the size of your nuts, not your hardware.

  9. #8
    Addicted Cruiser bamboopusher's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    The pivot point on TKP trucks are shaped like bananas.

  10. #9
    Fresh Fish Wht da1's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    http://img.photobucket.com/albums/v7.../bennett-1.jpg

    Just found that it is where a line from the pivot intersects with the center of the bushing seat. This would equal ~55* for this truck.
    Thanks a lot for all of your help guys, got me thinking and searching haha.

  11. #10
    Addicted Cruiser 4Crawler's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    x2 on the protractor or angle finder. Measure the truck you have and find out how it is set up. I like to go by the pivot or steering angle as that is the axis that the hanger pivots for the most part.

    And that all depends on the particular truck design/geometry. Below is an INDeeSZ, it has a 45* pivot angle and the king pin angles away from the hanger and pivot by about 27.5*:



    Shown above I have a total of 35* combined wedging on that truck leaving it about 10* effective pivot angle (still has a little bit of turn left) - as shown my the green line. Yet the king pin is about 18* forward of vertical. You can see the right angle where the pivot cup sits, then following that line up and to the right, the metal angles upward where the king pin comes out.

    I find the INDeeSZ trucks pivot pretty steady around the pivot cup axis and the pivot is shaped long and cylindrical and especially in a hard Delrin cup, it only rotates around that fixed axis. I have seen some other trucks were the pivot sort of pulls out of the pivot cup and tips over to the side as it turns farther over, like this old Tracker truck. The pivot is more conical shaped:



    Since all brands of trucks are different, I like to know what angle each truck I am using is naturally angled to. Then I can use that to make sense of the various amounts of wedging or dewedging each different truck may need. For example I run a Seismic 30* truck and also some Virage LDP trucks, the front one is set to 60* and the rear to 20* angle. So for a similar amount of turn, I have to add 15* of wedging to my INDeeSZ truck to equal the angle of the front Virage truck (45 + 15 = 60). Likewise the Seismic dewedged 10* is similar to the 20* natural angle of the Virage rear truck or for the INDeeSZ in back, I would need 25* of dewedge to get a similar angle.

    So knowing the angles of the various trucks you have can help dial in the wedging angles needed to make your board work well for LDP. For example I find having something like 40*-50* angle difference front to rear seems to work well. So if my front is at 60*, the rear should be around a 20* angle. If I drop the front to 50*, the back should be around 10* more or less.
    Last edited by 4Crawler; 12-24-2012 at 09:56 AM.
    --
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    Sk8Kings Med.Flex Blaster, 33.5" WB, Virage-LDP f/r, Delrin pivot cups, Riptide WFB bushings, 3DM Grapey Apes
    GBomb Illuminati, med. flex, IndeeSZ-139+5*/IndeeSZ-139-23*, Delrin pivot cups, Riptide Orange/Yellow WFB, 83mm narrowed Centrax,
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  12. #11
    Fresh Fish Wht da1's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    Fantastic post, exactly what I needed.

  13. #12
    Fresh Fish Wht da1's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    I also measured the angle of my truck as ~35*, The rear dewedged 7*, front +12*.
    For a beginner pumping setup is this fairly good? (WB= 19")

  14. #13
    A Heaping Helping Of Boner Pie Order of the 'Fish bucksaw87's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    Call me a dummy, but what does this have to do with anything?
    yes, an uber-grippy, square-lipped slalom wheel IS the best for sliding
    Quote Originally Posted by xjason11x View Post
    Jeeze people weren't joking when they said the fish was rough.

  15. #14
    Fresh Fish Wht da1's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    I am trying to find the angle of my trucks with wedging, so I can relate to other peoples setups.

  16. #15
    A Heaping Helping Of Boner Pie Order of the 'Fish bucksaw87's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    Quote Originally Posted by Wht da1 View Post
    I am trying to find the angle of my trucks with wedging, so I can relate to other peoples setups.
    Why not just find out how much other people wedge their trucks? As I'm sure you're finding out, it's really complicated figuring out the "angles" of a TKP truck, so usually pumping setups are listed as (for example) Indys with 7* of wedging...since even Indy doesn't publish their "angles" between stages.
    yes, an uber-grippy, square-lipped slalom wheel IS the best for sliding
    Quote Originally Posted by xjason11x View Post
    Jeeze people weren't joking when they said the fish was rough.

  17. #16
    Fresh Fish Wht da1's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    Unable to try it (broken wrist) so I'm just gonna get it as good as possible before getting back on board in a few weeks. If it doesn't suit, I will change it, but this will give a general idea.
    Will compare to my Cindys, good idea.

  18. #17
    Concrete Kahuna cabbageboy's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    RKP trucks are measured by the pivot angle & TKP trucks by the kingpin angle. From what I've remember Indys are 17*, but don't quote me on that though.
    The angle of the kingpin doesn't necessary tell you how the truck will behave; other factors also come into play. Some trucks have a straight pivot and others are bent in different ways. I have found out that the more I read about trucks, the less I (realize I) understand. Maybe this picture will help you(?):


    Edit: http://www.silverfishlongboarding.co...post1298816565
    Look up posts by SteveC. He is REALLY knowledgable about trucks; he knows everything. . . . . and A LOT more.
    Give us your children. What we can´t føck, we eat.
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  19. #18
    Addicted Cruiser CustomSkateCraft's Avatar
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    Default Re: TKP Trucks- Measuring angles?

    So True. The More I Learn the Less I Know.


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