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  1. #1
    RC poster
    Join Date
    Jan 2004
    Posts
    13

    TRX-4 Sport - hill hold

    Hi everyone,

    I just bought a TRX-4 Sport and set the ESC to crawl mode (5 blinks).
    Normally the esc should have hill hold to keep the car from going forward on an incline.

    Does this feature block the wheels 100%? I noticed the car still rolls slowly on steeper inclines (+15% I would say).

    Iíve made a small video:
    https://youtu.be/z2-Km0DjPCc

    Is this normal?

    FYI, Iím running a 2s lipo. I tried a 3s lipo, but this doesnít change anything.

  2. #2
    RC Turnbuckle Jr. jamann's Avatar
    Join Date
    Sep 2009
    Location
    Victoria B.C Canada
    Posts
    5,573
    Quote Originally Posted by Dempy View Post
    Hi everyone,

    I just bought a TRX-4 Sport and set the ESC to crawl mode (5 blinks).
    Normally the esc should have hill hold to keep the car from going forward on an incline.

    Does this feature block the wheels 100%? I noticed the car still rolls slowly on steeper inclines (+15% I would say).

    Iíve made a small video:
    https://youtu.be/z2-Km0DjPCc

    Is this normal?

    FYI, Iím running a 2s lipo. I tried a 3s lipo, but this doesnít change anything.
    It's a combo of motor not being strong enough to overcome the weight and gearing.
    a higher turn motor or lower gearing can help

    Sent from my SM-G930W8 using Tapatalk
    Mountains cant stop me
    they have tried

  3. #3
    RC Enthusiast
    Join Date
    Apr 2019
    Posts
    49
    Are you sure you're in the right mode? It sound like you're in trail mode with drag brakes. Have you tried to reset the mode?

  4. #4
    RC poster
    Join Date
    Jan 2004
    Posts
    13
    Thanks for the help. I already checked which mode I’m in and I recalibrated the ESC.

    I have a smaller pinion and bigger spur gear on order to lower the gear ratio and make the hill hold stronger.

  5. #5
    RC Enthusiast
    Join Date
    Apr 2019
    Posts
    49
    Kids were out crawling today and I saw that down really steep hills, the kind that are hard to walk, the cars rolled slowly down. Stock gears.

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