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Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech Forums Thread Wiki: Kyosho Ultima RB6 & RB6.6 Car Thread
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Last edit by: tobamiester
RB6.6 Kyosho America Product Page: http://www.kyoshoamerica.com/ULTIMA-...T_p_24505.html

RB6.6 Manual http://www.kyosho.com/jpn/support/in...A_RB6_6_IM.pdf

RB6.6 Kyosho Youtube https://www.youtube.com/watch?v=vW_sR667utY

MSRP $639 MAP $399.99

-------------------------------
New RB6.6 parts (compared exploded views, prices and links are Kyosho America):

Chassis:
  1. Main chassis - UM731 - $125.99
  2. Side guards - UM732 - $9.99

Battery Holder:
  1. Battery plate - UM733 - $8.99
  2. Battery foam - UM741 - $7.99

Rear Bulkheads:
  1. MM3 and Laydown - UM740 - $9.99
    • MM3 bulkhead
    • Laydown bulkhead
    • Swaybar Holders

3 Gear Transmission (MM and RM):
  1. Transmission - UM734 - $10.99
    • transmission cases
    • spacers
    • caps
    • plastic FR & RR suspension hangers

  2. Gear Cover - UM735 - $6.99

Laydown Transmission (3 and 4 gear possible):
  1. Transmission - UM736 - $10.99
    • transmission cases
    • spacers
    • caps
    • required extra hardware
    • pastic FR suspension hanger

  2. 40T idler - UM737 - $6.99
  3. Motor plate - UM738 - $18.99
  4. Gear cover - UM739 - $6.99

Body:
  1. Blade body - UMB05 - $27.99

Optional Parts:
  1. Lightweigt Blade body - UMB05LW - $31.99
  2. Aluminum FR suspension hanger - UMW705B - $28.99 (may be able to file UMW705 to fit)
  3. Brass FR suspension hanger - UMW725B - $30.99 (looks more different than UMW725..someone confirm?)

Typical Upgrades for new RB6.6 Buyers

UMW701 Aluminum Steering Plate (RB6)
UMW702 Aluminum Crank Arm (RB6)
UMW704-0 V2 Aluminum Rear Hub Set(0/RB6)
UMW705B Aluminum Rear Sus. Holder (RF/RB6.6) or brass UMW725B
UMW707 Aluminum Rear Sus. Holder (RR-Mid)

Nice to have:

UMW723 Aluminum Front Sus Block (Type B/10g/RB6/RT6/SC6).


Aftermarket Parts:

Front Wing: https://www.prolineracing.com/perfor...mount-alum-rb6

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Old 12-30-2012, 07:43 PM   #3736
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Originally Posted by offroad dude View Post
Have anybody tried running the Associated VTS slipper and spur gear on their B6..
I run one on mine. Works real good especially on my rt5. Just have to do a little grinding and cutting on it to make it fit but it's pretty easy to do.
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Old 12-31-2012, 12:39 AM   #3737
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Question......How does using the short, medium and long shock ends affect the handling of the car? I'm assuming it would be like limiting the shocks but correct me if I am wrong.
Its basically droop settings. Longer = more droop possibilities.
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Old 12-31-2012, 04:50 AM   #3738
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Ran the buggy for the first time yest. Holy steering! Was very aggressive. Needed a bit more rear grip, but didn't have the correct tires (slicks) for the track I was running. Made the most of it.
Spoke to the local sponsored guy who was tearing it up. He said He like 521-1RB5 arms on his...Anyone know what the diff are between these and the std RB6 arms?
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Old 12-31-2012, 05:55 AM   #3739
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what tire inserts are people running with suburbs?
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Old 12-31-2012, 07:49 AM   #3740
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Originally Posted by kwiksi View Post
Ran the buggy for the first time yest. Holy steering! Was very aggressive. Needed a bit more rear grip, but didn't have the correct tires (slicks) for the track I was running. Made the most of it.
Spoke to the local sponsored guy who was tearing it up. He said He like 521-1RB5 arms on his...Anyone know what the diff are between these and the std RB6 arms?
those arms give up rear traction the stock arms have more imo. where i race people are running the 6 arms on the 5. its all preference
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Old 12-31-2012, 09:17 AM   #3741
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some video of my car. it looks a little pushy here gonna have to see if i can tune that out http://www.youtube.com/watch?v=tzxzu...ature=youtu.be
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Old 12-31-2012, 02:06 PM   #3742
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some video of my car. it looks a little pushy here gonna have to see if i can tune that out http://www.youtube.com/watch?v=tzxzu...ature=youtu.be
Wear down your front tires more and you will have that push gone.
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Old 12-31-2012, 02:10 PM   #3743
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Wear down your front tires more and you will have that push gone.
you mean slicks?
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Old 12-31-2012, 02:14 PM   #3744
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you mean slicks?
Nope, I have run AKA Vektor and Rebars fronts in SS. They are push monsters to start, but if you break them down to where the pins are 50% or more worn down you will get steering out of them. Even Gold Barcodes work a lot better worn down vs new. The only tire I havent tried at Suburbs.
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Old 12-31-2012, 02:17 PM   #3745
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Nope, I have run AKA Vektor and Rebars fronts in SS. They are push monsters to start, but if you break them down to where the pins are 50% or more worn down you will get steering out of them. Even Gold Barcodes work a lot better worn down vs new. The only tire I havent tried at Suburbs.
I have the new suburbs in m4, they are money out of the box with red aka foams. I just switch the rears these days depending on traction levels and water content on track. The rebars are too tall a tread for even rear tires and hard wearing so gave up on them.
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Old 12-31-2012, 02:41 PM   #3746
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I had good success with rebars with aka red foam out of the box on medium-high traction and they definately get better a they wear.

I would say the better the dirt, the better aka shines
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Old 12-31-2012, 03:47 PM   #3747
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you guys running aka red foams front and rear?
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Old 12-31-2012, 04:13 PM   #3748
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I had good success with rebars with aka red foam out of the box on medium-high traction and they definately get better a they wear.

I would say the better the dirt, the better aka shines
Yeah rebars are way too tall. I take them to the asphalt and burn them in. Sucks but it's the only way to get them good. Once you get the and on them are really good if you need forward bit. They just don't have much sidebite.
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Old 12-31-2012, 04:27 PM   #3749
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you guys running aka red foams front and rear?
Yep. Except for the hot bodies tires I used to have. The carcass is a bit big for red akas to till out, so used jconcepts open cell foams.
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Old 12-31-2012, 04:35 PM   #3750
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Yes front and rear AKA foam. I was worried about loss of traction like many have reported but the 6 is so aggressive. it is PERFECT and as the foam wears in it just gets better, just like the tires.

My track also gets ample traction so I'm never in need of more. I'd like to try JC, Proline, and Sweep at some point but the AKA's are the ticket for my setup and track
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