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  1. #1
    RC Competitor
    Join Date
    Oct 2012
    Posts
    50

    What spur and pinion for longer speed runs?

    Rustler 2wd - the setup is 5700 kv. motor with MM2 ESC and 3s lipos
    just for long speed runs, no bashing etc.
    What spur and pinion i have to use for not damage the motor or anything else?
    I was wondering 86/16...but you tell me?

  2. #2
    RC Turnbuckle Jr.
    Join Date
    Oct 2016
    Posts
    4,810
    Really, the best recommendation would be to get an IR temp gun. Keep your temps below 160 deg F. Thatís an awfully small motor and hot wind for 3S, assuming itís the Castle can.


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  3. #3
    RC Competitor
    Join Date
    Oct 2012
    Posts
    50
    If i must change the motor what would be your recomendations?
    Stock 3500 or something like 3800-4000 kv?

  4. #4
    RC Competitor
    Join Date
    Mar 2020
    Posts
    51
    I ran 65 with 5700kv and 20/78 on 3s


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  5. #5
    RC Qualifier RC Dad's Avatar
    Join Date
    Jul 2019
    Location
    Boston
    Posts
    509

    What spur and pinion for longer speed runs?

    Quote Originally Posted by bumblebee View Post
    If i must change the motor what would be your recomendations?
    Stock 3500 or something like 3800-4000 kv?
    Check out this post. You might find it helpful:

    https://forums.traxxas.com/showthrea...l-speed-runner


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  6. #6
    RC Qualifier
    Join Date
    Jan 2020
    Location
    not in an ocean
    Posts
    254
    I looked through that other thread...... awesome!!!

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