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Kyosho Ultima RB6 & RB6.6 Car Thread

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Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech ForumsThread Wiki: Kyosho Ultima RB6 & RB6.6 Car Thread
Please read: This is a community-maintained wiki post containing the most important information from this thread. You may edit the Wiki once you have been a member for 90 days and have made 90 posts.
 
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 01-28-2014, 04:42 AM
  #9556  
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Originally Posted by Trevor Williams
Nick...where did you race at last weekend?
I went up to rjd hobbies for the boss man benefit race. Didn't last long before that picture was takin lol. 2 hour drive for a 10 minute practice. No one else had an rb6. The hobby shop there doesnt carry kyosho, and I didn't have a spare arm or shock shaft. I do now! Lol

Originally Posted by nolimit208
http://www.kyoshoamerica.com/ESC-Pla...R_p_22855.html


this is the piece ur talkin about right
Yes that's the piece. Is there a picture of how it's installed?
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Old 01-28-2014, 05:20 AM
  #9557  
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Oh man....thats a major bummer.
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Old 01-28-2014, 07:24 AM
  #9558  
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Originally Posted by nickdawg18
Yes that's the piece. Is there a picture of how it's installed?
Page 26 of the RT6 manual shows the installation.
Last edited by Kraig; 09-29-2017 at 11:21 AM.
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Old 01-28-2014, 04:06 PM
  #9559  
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Hello everyone in kyosho land....I'm planing to get one of these rb6 cars in a few weeks. I have read through much of the thread,all very good information. Was the "durability issue" the thin rear chassis under the gearbox, and has that now been mended? I plan to run this car in RM configuration, as I don't want to shell out money right away for a new set of springs unless I have to, and it seems the stock springs are more RM friendly. I will probably put a 17.5 in to start, then go to a mod motor later.

Any tips to share with me? Anything that has to be done?
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Old 01-28-2014, 04:26 PM
  #9560  
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Originally Posted by ThePanda
Hello everyone in kyosho land....I'm planing to get one of these rb6 cars in a few weeks. I have read through much of the thread,all very good information. Was the "durability issue" the thin rear chassis under the gearbox, and has that now been mended? I plan to run this car in RM configuration, as I don't want to shell out money right away for a new set of springs unless I have to, and it seems the stock springs are more RM friendly. I will probably put a 17.5 in to start, then go to a mod motor later.

Any tips to share with me? Anything that has to be done?
The first posting on page 1 has a ton of information.

Durability is great - only things I've broke happened at high rates of speed into very solid objects. I believe the thin part at the rear has been resolved, issues w/ the initial production kits.

I too run RM. I started RM, switched to MM, now back at RM. Very versatile car... Can't say enough good things about it. Oh, and welcome to the Red Army...
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Old 01-28-2014, 04:38 PM
  #9561  
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The thin chassis is was first run only, and was cosmetic only...
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Old 01-28-2014, 06:07 PM
  #9562  
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Originally Posted by whitrzac
The thin chassis is was first run only, and was cosmetic only...
Ok, good to hear.
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Old 01-28-2014, 07:11 PM
  #9563  
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A picture of my car with the phantom body in mm
Attached Thumbnails Kyosho Ultima RB6 & RB6.6 Car Thread-image.jpg  
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Old 01-28-2014, 07:32 PM
  #9564  
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What springs are everyone running In mm configuration
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Old 01-28-2014, 07:38 PM
  #9565  
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Does the avid top shaft fits the stock slipper?

http://www.amainhobbies.com/product_...minum-Topshaft
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Old 01-28-2014, 08:10 PM
  #9566  
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Originally Posted by zzztech
Does the avid top shaft fits the stock slipper?

http://www.amainhobbies.com/product_...minum-Topshaft
I do not think so, if it does should have quite a play, it has different inside square hole, but for sure works with AE slip disk.

Ciao,
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Old 01-28-2014, 08:12 PM
  #9567  
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Originally Posted by kenny lutz
A picture of my car with the phantom body in mm
Nice shape
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Old 01-28-2014, 08:19 PM
  #9568  
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Originally Posted by zzztech
Does the avid top shaft fits the stock slipper?

http://www.amainhobbies.com/product_...minum-Topshaft
No but you can convert to either of the B4 style ones with it.
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Old 01-28-2014, 08:30 PM
  #9569  
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Originally Posted by JaredN
What springs are everyone running In mm configuration
Right now I am running white fronts and white rears.
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Old 01-28-2014, 09:10 PM
  #9570  
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Originally Posted by Kraig
Right now I am running white fronts and white rears.
I to am running whites on all corners in mm, that's on a hard pack blue groove dirt track, I'll probably switch to gold rears when I try it indoor on the clay
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