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  1. #1
    RC Turnbuckle Jr. Cameron's Avatar
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    HR Merv CVD's...

    Anyone use these guys?
    I haven't looked for upgrades for the MERV for a while and havent seen these before.

    Are they any good? Pros or cons?

    I like the fact i dont have to tear down brand new diffs to install them.

    (RAH) (AH) + [ROMA (1+MA)] + (GA) + (OOH)(LA)

  2. #2
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    Never seen them either but they look cool.
    With great brushless comes great responsibility.

  3. #3
    RC Turnbuckle Jr. Cameron's Avatar
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    hmmm maybe ill be a guinea pig for these haha.
    "accidentally" ordered 2 pair with some other stuff from liquidrc...


    whoops!
    (RAH) (AH) + [ROMA (1+MA)] + (GA) + (OOH)(LA)

  4. #4
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    Quote Originally Posted by Cameron View Post
    hmmm maybe ill be a guinea pig for these haha.
    "accidentally" ordered 2 pair with some other stuff from liquidrc...


    whoops!
    LOL I like your sig. I personally think she is more impressive than Madonna.

  5. #5
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    I have them. I've run two 3s packs so far and I'm happy with their performance. Only time will tell though. They are less expensive compared to other brands. Ultimately I like Traxxas parts, if I had the money.
    Mini Revo VXL 7107
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  6. #6
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    Tough call. It's hardly a big deal cracking open your diff. 5 minute job at the most. We use the Traxxas ones and so far are excellent. Skate parks, 8ft high jumps and heavy bashing

  7. #7
    RC Turnbuckle Jr. Cameron's Avatar
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    Quote Originally Posted by graham_h View Post
    Tough call. It's hardly a big deal cracking open your diff. 5 minute job at the most. We use the Traxxas ones and so far are excellent. Skate parks, 8ft high jumps and heavy bashing
    Oh yeah, no issues doing it if/when i need to. just liking these for the fact i dont have to.
    (RAH) (AH) + [ROMA (1+MA)] + (GA) + (OOH)(LA)

  8. #8
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    And they look sweet
    With great brushless comes great responsibility.

  9. #9
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    The shafts look a bit beefier than the traxxas ones, a plus in my book. I've bent shaft's twice, hit a parked car tire at a moderate speed, i tried to bend it back but could not get it perfect, had to fit in a replacement.

    Its good to see that we have another alternative, but like the fellas above have said, only time will tell.

    Keep us posted on their durability.

  10. #10
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    Any feedback on these HR CVDs. I am thinking about getting a set.

  11. #11
    RC Turnbuckle Jr. Cameron's Avatar
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    Performed flawlessly for me this weekend. Great purchase IMO.

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    (RAH) (AH) + [ROMA (1+MA)] + (GA) + (OOH)(LA)

  12. #12
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    I'm running the HR cvd's & I've put about 10 packs to them. Same cvd's pictured above. I'm real happy, great performance and a good deal!
    Mini Revo VXL 7107
    E-Maxx 3903 - He Lives!

  13. #13
    RC Turnbuckle Jr. Cameron's Avatar
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    I dont know how important they are but i did notice much less play in the outer assembly when they were all there. But double check for the grub screws on the end UNDER the sliding blue cover (it slides out over the stub axle and you can see what i mean). Of a possible 8 grub screws i had only 1 when i opened the packages. Found 3 more in the tool box to put at least 1 on each. They look to help keep the CVD centered.
    (RAH) (AH) + [ROMA (1+MA)] + (GA) + (OOH)(LA)

  14. #14
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    Are you having any issue with the grub screw on the diff output cups backing out? Did you thread lock them? I used to have a heck of a time with them on my stock axels before I upgraded to the TRX CVD's.

  15. #15
    RC Turnbuckle Jr. Cameron's Avatar
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    Have not seen any issues with them yet. I installed them with a new set of pre t-locked grubs.
    (RAH) (AH) + [ROMA (1+MA)] + (GA) + (OOH)(LA)

  16. #16
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    Ill have to keep track of this thread. How much do they cost?
    1:16 Slash VXL
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    Rustler VXL

  17. #17
    RC Turnbuckle Jr. Cameron's Avatar
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    I didnt shop around a whole lot. Picked them up from liquidrc for $23/pair

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    (RAH) (AH) + [ROMA (1+MA)] + (GA) + (OOH)(LA)

  18. #18
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    I run these on 2 of my Mervs and love them. Defiantly worth it.

  19. #19
    RC Turnbuckle Jr. Cameron's Avatar
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    Still holding strong on my merv. Not 1 issue to report yet.

    Send via most likely stolen wifi...
    (RAH) (AH) + [ROMA (1+MA)] + (GA) + (OOH)(LA)

  20. #20
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    How about now?

  21. #21
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    I don't see a stupid O-Ring pin retention method like Traxxas - anyone know how they do it?
    Personally, I don't like the set screws - Traxxas is better in that regard. Plus, that design likely places the joint center farther outboard which increases drive line angles.
    There are lots of ways to do that. Most are wrong.

  22. #22
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    The blue bit with "HR" on it holds the pin in place. When the wheel is bolted up, the o-ring that holds that in place is not doing anything anymore.
    Whatever it is I just said... I could be wrong.

  23. #23
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    Hi have tried these out and if you bash hard and jump quite a bit they fail. I have broken 3 out of 4 already. Every one of them broke where the pin goes through the axle for the hex wheel mount. I have these on order now

    http://www.thetoyz.com/search2.lasso...rd=SVXS288XD02

    Hopefully they will be more robust since they don't use a pin.

  24. #24
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I'm pretty sure they all use a pin to pivot on.
    Whatever it is I just said... I could be wrong.

  25. #25
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    Quote Originally Posted by Jimmie Neutron View Post
    I'm pretty sure they all use a pin to pivot on.
    Here is what it says in the Features.

    FEATURES:
    CNC construction of #45 steel.
    color: jet black finish
    with Red aluminum capture Ring.
    No pin D drive. allow a beefier and stronger axle.
    One pace out drive cup for a ultimate in reliability and performance

    I'm not sure how they do it but it says no pin. I will see in a week or so when they get here.

  26. #26
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I am definitely interested in how they are constructed. Even 1:1 axles, shafts, ect have pins... unless they are torque tubes.
    Whatever it is I just said... I could be wrong.

  27. #27
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    Quote Originally Posted by Salameth View Post
    I have these on order now

    http://www.thetoyz.com/search2.lasso...rd=SVXS288XD02

    Hopefully they will be more robust since they don't use a pin.
    I`m pretty sure that those are the same as the blue ones ....

  28. #28
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    Quote Originally Posted by Jimmie Neutron View Post
    I'm pretty sure they all use a pin to pivot on.

    I'm pretty sure you are right
    There are lots of ways to do that. Most are wrong.

  29. #29
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    I think you all may have misunderstood me. I'm sure these have a pin to pivot on as well. However supposedly they do not have the pin that goes through the axle for the hex wheel mount to push against. That is where every one of my blue ones failed. Anyway I will find out once they get here and let you all know.

  30. #30
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    I still don't understand apparently - you can see the hole fir the pin on the stub axle in the pic.
    It has to be there otherwise tightening the wheel nut would just force the wheel into the carrier - that's it's only purpose
    There are lots of ways to do that. Most are wrong.

  31. #31
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I see what he is getting at.

    Where the 12mm hex slides onto there is no hole for a pin. The hex has a specific shape, either a square with rounded sides or a triangle with rounded sides (not sure which), the same as the stub shaft. This is how the hex engages the stub and therefore eliminates the pin.
    Whatever it is I just said... I could be wrong.

  32. #32
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    Yep, I see now, I was looking at the first pic
    That seems like a good idea and no grub screws or O-rings
    I'd give em a shot if mine would only break.....
    There are lots of ways to do that. Most are wrong.

  33. #33
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    Quote Originally Posted by photon_trap View Post
    Yep, I see now, I was looking at the first pic
    That seems like a good idea and no grub screws or O-rings
    I'd give em a shot if mine would only break.....
    It only took me two packs to break my first one. Of course I was working on a fairly tough jump and was cartwheeling a lot. I have broken two others and it took about 4 packs for each. I guess I am just really hard on my MERV.

  34. #34
    RC Turnbuckle Jr. Cameron's Avatar
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    I have yet to have an issue with mine. Granted I dont drive the Merv terribly hard. But performing flawlessly to this point.

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    (RAH) (AH) + [ROMA (1+MA)] + (GA) + (OOH)(LA)

  35. #35
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    If I screw up while driving like an idiot (yes, it's happened) I certainly don't blame the broken part or expect it not to fail under those circumstances. It it fails under load (torque) that's another story.
    There are lots of ways to do that. Most are wrong.

  36. #36
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    snapped an axle on our blue set today



    Sheared clean off

  37. #37
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    Quote Originally Posted by Salameth View Post
    Hi have tried these out and if you bash hard and jump quite a bit they fail. I have broken 3 out of 4 already. Every one of them broke where the pin goes through the axle for the hex wheel mount. I have these on order now

    http://www.thetoyz.com/search2.lasso...rd=SVXS288XD02

    Hopefully they will be more robust since they don't use a pin.
    Exactly the same thing happened to ours today. Did you get the red ones yet ? Any better ?

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