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Thread: Front A-arms

  1. #1
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    Front A-arms

    I broke my a-arms the other day and I bought the RPM arms that fits the mini e-revo.
    It's the same right?
    Installed the new ones both upper and lower arms and when finished I notised that the outer driveshafts are rubbing against the upper a-arm when I hold the car in the air and spin the wheels.

    What have I done wrong installing? Or aren't they suppose to fit the mini summit at all?

  2. #2
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    The RPM arms will work but I suggest buying the complete set for front and rear. Mine also rubbed just a little bit. A week after I installed the arms I broke a driveshaft and decided to install Traxxas CVD's. Now they don't rub
    Slash 2WD
    1/16 Ken Block Rally
    1/16 Summit

  3. #3
    RC poster
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    I don't think RPM makes the rear a-arms for the 1/16 summit yet.
    They are different from the ones to the 1/16 e-revo.

    I'll change back to Traxxas a-arms if I break the driveshafts

  4. #4
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    I've been running the rpm rear arms on my summit for awhile now with no problems.
    Slash 2WD
    1/16 Ken Block Rally
    1/16 Summit

  5. #5
    Marshal Dadx2mj's Avatar
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    The Summit uses the swept back arms that increase the wheel base dimension by 10mm, these arms are an option for the MERV but are stock on the Summit. The RPM arms keep the stock MERV wheelbase dimensions, so they can be installed on a Summit but they shorten the wheelbase by 10mm
    BlindMan Racing
    Rusty - MERV - Pede 4x4-Alias
    SPC Lipo Power

  6. #6
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    Thumbs up

    Quote Originally Posted by Dadx2mj View Post
    The Summit uses the swept back arms that increase the wheel base dimension by 10mm, these arms are an option for the MERV but are stock on the Summit. The RPM arms keep the stock MERV wheelbase dimensions, so they can be installed on a Summit but they shorten the wheelbase by 10mm
    Very good to know the 10mm difference. Thanks for the info
    RUSTLER VXL & 1/16 SUMMIT tons of hop ups!!!

  7. #7
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    What's the difference between the stock driveshafts and the CVD's for the minirevo?

  8. #8
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    plastic vs aluminum
    cvd's have less rotating mass which equals more speed
    cvd's are more durable
    Slash 2WD
    1/16 Ken Block Rally
    1/16 Summit

  9. #9
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    Thanks smoothie7

  10. #10
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    Your welcome. If you decide to go with CVD's, I recommend getting the P2 rockers. You lose about 1/2" of ground clearance but the drive shaft is much closer to being level which is a big part of why the plastic driveshafts are breaking. Plus by changing the rockers it doesn't feel so top heavy
    Slash 2WD
    1/16 Ken Block Rally
    1/16 Summit

  11. #11
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    With the RPM rear arms, did you need to swap toe links as well? With the shorter wheelbase, I don't want to throw the alignment off.

  12. #12
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    No swapping of linkage needed.

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