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  1. #1
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    Two Speed questions

    So I recently got a 2.5 TMaxx in a trade for a brushed Sl4sh. I enjoyed it immensely until I cracked a front A Arm. Now whole I patiently await new parts I have a question about the transmission.
    Iíll start by saying I have read tons of forum post and the manual and I understand HOW to adjust the shift point on the 2 speed trans. My question is how can I can IF it is shifting correctly. Is the transition a clear interruption in sound or acceleration? I seem to have good low end and good top speed, but I donít know for sure.
    Either way I canít look at it until I get the new A Arm. Does anyone have any feedback on this topic for me ?

  2. #2
    Marshal Double G's Avatar
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    You can hear the difference in engine rpm when it shifts gears and maybe even a lurch in speed (the front of my Revo raises up a little bit when this happens). The engine should not wind out for a while and then shift, nor should it shift as the engine is still revving up through the mid-range. If you've ever driven a manual transmission at WOT then you'll have an idea of what it should sound like.

    If you are not sure there is a gear change try a more gradual acceleration.
    The Super Derecho

  3. #3
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    Quote Originally Posted by Double G View Post
    You can hear the difference in engine rpm when it shifts gears and maybe even a lurch in speed (the front of my Revo raises up a little bit when this happens). The engine should not wind out for a while and then shift, nor should it shift as the engine is still revving up through the mid-range. If you've ever driven a manual transmission at WOT then you'll have an idea of what it should sound like.

    If you are not sure there is a gear change try a more gradual acceleration.
    Yeah, I drive a manual and ride a lot of bikes, so what I’m expecting (missing) is that lurch. I guess my other is once I get the suspension fixed and run t again I’ll have to listen for an audible shift. If it’s not there I’ll have to determine if it’s stuck in 2nd or 1st. ( since it doesn’t want to yank wheelie and has good top end I suspect it might be either stuck in 2nd or shifting early, like right away early.
    My other question is if I open the case and make sure everything inside is copecedic, is there a baseline setting for a “new or reassembled after maintenance transmission ?
    Also, thank you so much for the speedy helpful response

  4. #4
    Marshal Double G's Avatar
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    From what I recall, 6.5 turns out from all the way in.
    The Super Derecho

  5. #5
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    Thanks GG. I can’t wait until I get my new A arms so I can test my tune and transmission adjustments

  6. #6
    RC Turnbuckle Jr. Nitronaught's Avatar
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    Quote Originally Posted by Double G View Post
    From what I recall, 6.5 turns out from all the way in.
    Anywhere from 6-6.5 turns.
    All Lives Matter
    United We Stand, Divided We Fall

  7. #7
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    Quote Originally Posted by Nitronaught View Post
    Anywhere from 6-6.5 turns.
    I canít wait to try this out when I get back to Dakota Territory.
    Thank you all so much for the responses. I feel like even though I have been on and off in the hobby for around 30 years I feel like a relative noob to nitro havenít just gotten into it last month.

  8. #8
    RC Turnbuckle Jr. Nitronaught's Avatar
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    Make sure your tune is good, and dial in your shift point like you do when tuning with no more than 1/2 a tank of fuel. RPMS and how quickly the engine spools up to top RPM is what affects your shift point.
    All Lives Matter
    United We Stand, Divided We Fall

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