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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 05-24-2015, 10:01 AM   #12031
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The diff is just a bit crunchy but how can I tell what pucks system this is? That shafts are not aluminum so it's the shiny system? This should have a MIP super diff no?
Yeah that looks like the shiny pucks. Also probably MIP diff.
I want to run the aluminum pucks in 17.5 but I just can't give up having a smooth diff. It is gritty after one race night in my 22.
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Old 05-24-2015, 10:03 PM   #12032
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For those who may run on a track where it may get a little wet, this is what I ran this weekend. It felt really stable and had really good grip considering how loose the track was in certain spots.

I forgot to mention I run the low height ballstud on the spindle so I can have 0 bump.

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Old 05-25-2015, 09:41 AM   #12033
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Trying to find a ceramic thrust bearing for this MIP super diff. Can't find one specifically for the RB6. Are they all the same? Schelle and Avid only list for the 22 and B5.
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Old 05-25-2015, 09:53 AM   #12034
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Trying to find a ceramic thrust bearing for this MIP super diff. Can't find one specifically for the RB6. Are they all the same? Schelle and Avid only list for the 22 and B5.
Try Casper r/c.

I just bought 2mm ceramic thrust balls personally.
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Old 05-25-2015, 10:23 AM   #12035
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Originally Posted by oPAULo View Post
Trying to find a ceramic thrust bearing for this MIP super diff. Can't find one specifically for the RB6. Are they all the same? Schelle and Avid only list for the 22 and B5.
you mean like this?

http://www.avidrc.com/product/5/acce...cessories.html
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Old 05-25-2015, 10:30 AM   #12036
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Yessir! Thanks kindly.

You young whippersnappers and your good eyes....gah! I looked and looked.
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Old 05-25-2015, 10:54 AM   #12037
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What is the deal with Kyosho shock spring perches? I have 3 different sizes & not too sure which to use where!?
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Old 05-25-2015, 11:13 AM   #12038
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What is the deal with Kyosho shock spring perches? I have 3 different sizes & not too sure which to use where!?
Do you mean the shock eyelets? The S, M, L eyelets are used to adjust big droop changes.
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Old 05-25-2015, 12:20 PM   #12039
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No, I mean the spring perches. The one on the left is on my RT6 all 4 corners, the one in the middle are on my RB6 fronts and the one on the right are on my RB6 rear.
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Kyosho Ultima RB6 & RB6.6 Car Thread-ashok.jpg  
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Old 05-25-2015, 01:10 PM   #12040
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No, I mean the spring perches. The one on the left is on my RT6 all 4 corners, the one in the middle are on my RB6 fronts and the one on the right are on my RB6 rear.
The one in the left is not Kyosho, unsure about the middle, and the right is definitely stock Kyosho.
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Old 05-25-2015, 01:43 PM   #12041
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Cool thanks! I will just replace them. The price you pay for buying used I guess...
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Old 05-25-2015, 02:01 PM   #12042
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Cool thanks! I will just replace them. The price you pay for buying used I guess...
If it works......
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Old 05-25-2015, 02:58 PM   #12043
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the one on the right is AE
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Old 05-25-2015, 02:58 PM   #12044
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Originally Posted by SoCalMX View Post
No, I mean the spring perches. The one on the left is on my RT6 all 4 corners, the one in the middle are on my RB6 fronts and the one on the right are on my RB6 rear.
Only the very right one is a Kyosho.

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Old 05-27-2015, 08:39 AM   #12045
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Sorry if this has been covered previously. Is anyone making a 3 gear trans for this buggy in mid motor. I would like to try it out but have not found anything
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