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  1. #1
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    Bought Traxxas Big Bore for 4WD VXL. How are these upgrades???

    The stock shocks look and feel beefier than the big bores... I feel like I wasted my money.


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  2. #2
    RC Qualifier GotNoRice's Avatar
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    They aren't really a huge upgrade. It depends on what you are looking for. With the Big Bore shocks you get tighter tolerances and an aluminum construction which makes them perform better overall.

    Strictly in terms of durability however, I'd say the only real advantage they have over the stock Ultra shocks are the shock caps. The stock shocks come with plastic caps that have a tendency to break/snap and then spray shock oil everywhere. Thankfully you can get aluminum shock caps for the stock Ultra shocks, and at that point I'd say they are pretty much equal in terms of durability.

  3. #3
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    Nothing special about handling improvement, only durability because big bores have aluminum body and stronger shafts.
    And less maintenance because they donít have tendency to leak.


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  4. #4
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    What is the bore diameter on this big bore shocks?

    Its 10 mm on ultra shocks, and 13 mm on GTR shocks.

  5. #5
    RC Turnbuckle Jr. jvogel's Avatar
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    So, what is the best shock for a Sl4sh? Pro-Line? GTR? Something else?

    I'm still using my old Ultras with aluminum caps, titanium shafts and Losi linear springs...and unfortunately lots of maintenance and rebuilds.
    Obstacle Magnet

  6. #6
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    From what I have heared GTR

  7. #7
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    Quote Originally Posted by ZeroBrakesSlash View Post
    The stock shocks look and feel beefier than the big bores... I feel like I wasted my money.


    Sent from my iPhone using Tapatalk
    I have never understoud why traxxas call them big bore shocks. From what I can see its just more bling aluminium and titanium coated shafts that is the difference from ultra shocks.

    Here is a video:
    https://m.youtube.com/watch?v=MQ5HWgsywlM

    Both measured to 10 mm bore.

  8. #8
    RC Turnbuckle Jr. Dcuda69's Avatar
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    GTRs and done!
    Slash 4x4 Ult 2150kv
    Rustler vxl
    Ford GT vxl

  9. #9
    RC Qualifier Calebs0615's Avatar
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    Quote Originally Posted by TWG2000 View Post
    I have never understoud why traxxas call them big bore shocks. From what I can see its just more bling aluminium and titanium coated shafts that is the difference from ultra shocks.

    Here is a video:
    https://m.youtube.com/watch?v=MQ5HWgsywlM

    Both measured to 10 mm bore.
    Yeah i believe the big bore shocks are just aluminium upgrades of the stock ultra shocks.

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  10. #10
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    Aren’t they just as expensive as GTR’s? Those would be a better option

  11. #11
    RC Qualifier Calebs0615's Avatar
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    Quote Originally Posted by The Bean View Post
    Arenít they just as expensive as GTRís? Those would be a better option
    Pretty much yeah. The difference is worth for sure. Ive hears great things about gtr shocks.

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  12. #12
    RC Turnbuckle Jr. Greatscott's Avatar
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    Quote Originally Posted by ZeroBrakesSlash View Post
    The stock shocks look and feel beefier than the big bores... I feel like I wasted my money.


    Sent from my iPhone using Tapatalk
    "Big Bore" is really a misnomer. As you have seen, they are the same size.
    What you are paying for:
    • Aluminum bodies, which will not flex nearly as much as the plastic bodies. This means tuning is a lot easier because you shocks will be a lot more predictable.
    • Coated shafts. They operate a lot smoother than the Ultra Shocks.

    Whether or not they are worth the money is subjective, some people love them, some not. But, if you did not do any tuning to your Ultra Shocks, then you have wasted your money.

    Quote Originally Posted by TWG2000 View Post
    I have never understoud why traxxas call them big bore shocks. From what I can see its just more bling aluminium and titanium coated shafts that is the difference from ultra shocks.

    Here is a video:
    https://m.youtube.com/watch?v=MQ5HWgsywlM

    Both measured to 10 mm bore.
    Those clips are not to adjust the ride height, they are preload spacers.
    Submarine Qualified, Chief Inducted, Navy Retired

  13. #13
    RC Qualifier Rocketzx1's Avatar
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    The Traxxas big bore shocks were an upgrade for stock shocks way back in the day, because the stock plastic shocks were indeed smaller than the big bore shock and therefore, the big bore shocks were an upgrade.

    We now have Traxxas ultra shocks that are just plastic bodied versions of the big bore shocks. You can find used sets of big bores in great shape on eBay for 25-35 dollars, quite a steal imo.

    But if you just have to have a big bore shock, the GTRs are the way to go.


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  14. #14
    Traxxas Marshal
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    Rocketzx1 is correct, the term "big bore" came out many, many years ago. Back in the day, both plastic AND aluminum Traxxas shocks were smaller.
    "Happiness depends upon ourselves." -Aristotle

  15. #15
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    Quote Originally Posted by Rocketzx1 View Post
    The Traxxas big bore shocks were an upgrade for stock shocks way back in the day, because the stock plastic shocks were indeed smaller than the big bore shock and therefore, the big bore shocks were an upgrade.

    We now have Traxxas ultra shocks that are just plastic bodied versions of the big bore shocks. You can find used sets of big bores in great shape on eBay for 25-35 dollars, quite a steal imo.

    But if you just have to have a big bore shock, the GTRs are the way to go.


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    That was new info for me, thank you.

  16. #16
    RC Turnbuckle Jr. El Sob's Avatar
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    I have run Traxxas Ultra, Big Bore, Pro-Line Powerstroke and GTR shocks. The GTR shocks are head and shoulders above the rest.

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    Member of the 10,000 + posts club! Here to help!

  17. #17
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    I have a Pro-Line ProFusion, it has some huge shocks on it! I'll have to measure them and see if they'll work on anything Traxxas before they disappear.

    Sent from my VS996 using Tapatalk

  18. #18
    RC Competitor
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    What size GTR shocks would be good for a lowered street truck?
    I'm getting all the parts together before i start the tear down and rebuild.
    You are talking about Traxxas Complete GTR Long Shocks w/Tin Shafts (Blue) (2) correct?
    Thanks for any help.


    Edit : would these work on slash 4x4 or are they to short??

    https://www.amainhobbies.com/traxxas...a5460a/p150743
    Last edited by Arcor; 08-20-2020 at 02:26 PM.

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