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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 01-26-2013, 11:41 AM   #4741
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another:

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Old 01-26-2013, 11:43 AM   #4742
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Cody Turner's RB6

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Old 01-26-2013, 11:44 AM   #4743
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Tebo's new batter strap

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Old 01-26-2013, 12:05 PM   #4744
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Is possible for someone who is at the Reedy Race to ask the team drivers why they went back to a full size servo...is it because they now use shorties?
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Old 01-26-2013, 12:13 PM   #4745
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The shorty servos are having problems with stripping gears and not enough torque. I tried ( as well as alot of other locals at West Coast) the KO shorty servo and they all stripped the gears. I went back to a RSX response servo and its great.
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Old 01-26-2013, 01:02 PM   #4746
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The shorty servos are having problems with stripping gears and not enough torque. I tried ( as well as alot of other locals at West Coast) the KO shorty servo and they all stripped the gears. I went back to a RSX response servo and its great.
Hey Kevin,

I am running Sanwa SRG-BLS since I updated to the RB6 with no issues...my questions is because the new car is a little front heavy in the air, I thought that with the full size servo the added weight will only make it to dive more

Maybe I have to try and see for myself...
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Old 01-26-2013, 02:20 PM   #4747
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They suppose to give you a little more traction that the RB6 rear arms...the question is, do you have to adjust the length of the rear shocks when you make the switch and if so what is the better way...I am guessing by changing the ball ends with the medium ones?
I was told the opposite. I believe they free up the rear and allow it to rotate better.
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Old 01-26-2013, 07:57 PM   #4748
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Sorry if this has already been asked but is there a better shock tool for rb6 like alum i keep stripping the plastic ones thanks
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Old 01-26-2013, 08:15 PM   #4749
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Sorry if this has already been asked but is there a better shock tool for rb6 like alum i keep stripping the plastic ones thanks
theres a user "eper" who makes a alum version and sells them, as of the moment, its the only one available on the market I believe. I saw AVID coming out with one aswell.
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Old 01-26-2013, 08:46 PM   #4750
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Quote:
Originally Posted by killa B View Post
Sorry if this has already been asked but is there a better shock tool for rb6 like alum i keep stripping the plastic ones thanks
GMK Supply is coming out with a very nice set with holders for the shock top and body as well. I've seen the prototype set a while back and it works awesome. Top notch like all the GMK stuff!
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Old 01-26-2013, 08:49 PM   #4751
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Quote:
Originally Posted by nitroargi View Post
Hey Kevin,

I am running Sanwa SRG-BLS since I updated to the RB6 with no issues...my questions is because the new car is a little front heavy in the air, I thought that with the full size servo the added weight will only make it to dive more

Maybe I have to try and see for myself...
If your car is front heavy something is wrong. What is your layout/setup like?

I have one of EPER's tools, works great, and is good quality.

Now on to my question, I put on the avid slipper setup and it rubs the gear cover bad. I tried heating the cover and pushing it out but there isn't enough material. Any solutions? Optional gear covers?
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Old 01-26-2013, 09:08 PM   #4752
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I run the Avid slipper with no issues.. double checked just now for marks on the inside of the gear cover and there isn't a scratch. Did you assemble it properly? There's a spacer you leave out when you use it on a Kyosho, but use on the B4.1.. I did notice my Avid spur and Robinson aluminum pinion starting to make noise.. so i have a new spur here soaking in a cup of water overnight before i install(recommendation from Avid to make the gear quieter). We'll see how well that works.
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Old 01-26-2013, 09:21 PM   #4753
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Hey t8rtot,

My base setup is based on the Japan Team sheet since I mainly running on dirt...I use saddles for the same reason...first time out with the RB6 the car was slightly nose diving in jumps...that't why I thought team drivers used the low profile servo so I never tested a normal size one!

On the Avid I have to also report that I used it too and there are no issues with the gear cover...
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Old 01-27-2013, 06:16 AM   #4754
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I would dbl check ride height and rebound, I ran that for a few weeks and it was balanced for me with a full sized servo in front. I used a shorty lipo however. Mmm

K ok it's possible I have it spaced too far out, which spacer isn't to be included?

Thanks in advance
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Old 01-27-2013, 07:07 AM   #4755
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Quote:
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Hope there weren't any doubters of HARA. It doesn't matter the class, he's a man amongst children. He's the reason my first rc was an HPI. You don't win WC in different classes and be on the podium for the last three 1/8th buggy worlds on accident.

As soon as I saw that rb6 in his livery I got chills. Looks like he's on to something with that MM.

Can't wait to see that setup.
I was at the Reedy race yesterday. Spoke with Hara and inspected his RB6 very closely. He has the AVID setup and he suggested also on dirt/clay to run the upgraded slipper pads from AVID. He was super nice and I found Tebo, Cody and Hara very helpful.
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