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  1. #1
    RC Qualifier
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    Gearing question

    I am currently running 12/68 in my maxx with a 2800 tacon 2 pole motor.
    My question is what is good reccomended gearing for this setup on 4s? Torque is not really a concern and it was running pretty cool geared like this but that's in winter. I was planning on running 17/58, tell me what you think!
    -thanks
    You ain't bashin unless your crashin!!

  2. #2
    RC Turnbuckle Jr.
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    I run 20/65 on 4s, and it is great for me, temps are around 130 both motor-Esc, my guess is that motor will run hot on that gearing.

  3. #3
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    Hmm..what kind of speeds do you get? And I assume your running he MMM?
    You ain't bashin unless your crashin!!

  4. #4
    RC Turnbuckle Jr.
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    yes I run MMM-2200, around 40-45 mph not clocked.

  5. #5
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    Ok and when you said my motor might run hot with : 17/58....or 20/65?
    You ain't bashin unless your crashin!!

  6. #6
    RC Turnbuckle Jr.
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    Quote Originally Posted by eschmitt4 View Post
    Ok and when you said my motor might run hot with : 17/58....or 20/65?
    I was refering to 17/58, but not sure that's not even on the chart, it might work on 4s, only way to know is trying.


  7. #7
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    I think I'm gonna try 17/65 then see where im at with temps...if its ok then I'll try a 58 spur
    You ain't bashin unless your crashin!!

  8. #8
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    The lowest spur I've tried is a Robinson 60T with an 18T pinion and the MMM hits up against the tranny before the pinion gets close to engaging the spur.

    The Traxxas manual covers gear ratios down to about 3.1.
    58T/17T = 3.4
    58T/18T = 3.22
    58T/19T = 3.05
    The hottest setups in the manual are
    65T/21T = 3.10
    68T/22T = 3.09
    Watch your temps! :-)
    Last edited by cooleocool; 04-25-2013 at 10:17 AM. Reason: merge

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