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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 12-15-2012, 01:59 PM   #3391
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Quote:
Originally Posted by offroad dude View Post
I need so help! I was looking at some of the setups and most pros are running the number 2 shock hole on the rear arm. Are they drilling this hole out or running a different arm completely?
Flip your arm around
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Old 12-15-2012, 02:07 PM   #3392
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Thanks Fellas.......
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Old 12-15-2012, 03:51 PM   #3393
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Now I put the rear gold springs on and I even get close to ride height. I hope I didn't buy the wrong ones....
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Old 12-15-2012, 04:05 PM   #3394
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Never mind I think I got truck rear springs.

Edit: If I am looking at this right XGS034 are truck springs and the buggy springs are XGS013. Looks like CA was on the right track, even though these are also 73mm long just like the buggy springs. I think they just have a different wind.
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Old 12-15-2012, 04:28 PM   #3395
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Default diff question

It seems my RB6 spins out a little too easy when coming out of a tight corner and putting on the power. I'm running a shorty pack all the way forward - to the servo. I'm wondering if I should loosen or tighten the diff a little or move the battery back some to plant the rear end more. I don't want to give up much steering though ... Thanks
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Old 12-15-2012, 04:36 PM   #3396
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How do I convince my gf to buy this for me for xmas? Lol
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Old 12-15-2012, 04:44 PM   #3397
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How do I convince my gf to buy this for me for xmas? Lol
Buy her a diamond ring
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Old 12-15-2012, 04:47 PM   #3398
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Eek I was afraid someone would say that lol.
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Old 12-15-2012, 04:49 PM   #3399
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Old 12-15-2012, 05:10 PM   #3400
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Two things... First those of you who run a bottom cover that created your own, can someone send me the ai or eps file used? [email protected] I can create designs, print, lam and cut them.
Second where can I get the blue shock collars from now?
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Old 12-15-2012, 08:34 PM   #3401
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Originally Posted by ChadBlanton View Post
It seems my RB6 spins out a little too easy when coming out of a tight corner and putting on the power. I'm running a shorty pack all the way forward - to the servo. I'm wondering if I should loosen or tighten the diff a little or move the battery back some to plant the rear end more. I don't want to give up much steering though ... Thanks
.
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Old 12-15-2012, 08:49 PM   #3402
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Quote:
Originally Posted by Weazsel View Post
Yup.

You can take two pieces of plexiglass or something similar and sandwich the brace between the two pieces and give it a couple taps with a hammer. That straightens it out fairly well. If you're going to a big race I would change it though.
I still use the original UM131 with my RB5, just bend it outwards a little and it will hold. Check after each run and bend with your hands. Still using the original SP2 one.

The later thicker SP holder would bend just looking at it awkwardly. Unfortunately the RB6 only comes in this thickness and you need to stock up.
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Old 12-15-2012, 09:08 PM   #3403
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Anybody running avid springs or are the K springs too good...
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Old 12-15-2012, 09:23 PM   #3404
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Anybody running avid springs or are the K springs too good...
I had some good results with the Avids but i haven't tried the golds yet.
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Old 12-15-2012, 10:40 PM   #3405
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The avids are good, but the hardest spring is only around the middle of the Xgear range IIRC.
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