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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 05-22-2015, 09:53 AM   #12016
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New kit is coming :http://www.redrc.net/2015/05/kyosho-ultima-rb6-2015-kit/
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Old 05-22-2015, 10:07 AM   #12017
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Son of a...........
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Old 05-22-2015, 10:30 AM   #12018
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Pretty meh update. Was hoping for a 3 gear mid motor gearbox like the competition for the carpet championship this year.
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Old 05-22-2015, 10:32 AM   #12019
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Pretty meh update. Was hoping for a 3 gear mid motor gearbox like the competition for the carpet championship this year.
A little birdie at oc/rc said a new gearbox and cover are in the way soon.
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Old 05-22-2015, 10:33 AM   #12020
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A little birdie at oc/rc said a new gearbox and cover are in the way soon.
great to know
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Old 05-22-2015, 12:10 PM   #12021
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Seems like Kyosho isn't convinced of the sideways mounting option.
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Old 05-22-2015, 09:36 PM   #12022
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A lay down transmission would be nice option too
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Old 05-23-2015, 08:57 AM   #12023
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Seems like Kyosho isn't convinced of the sideways mounting option.
In talking to some of the team drivers at OCRC, neither are they!

I wonder if there will be any changes to the RT6?
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Old 05-23-2015, 03:56 PM   #12024
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In talking to some of the team drivers at OCRC, neither are they!

I wonder if there will be any changes to the RT6?
I doubt it. We already got an updated front tire with more mounting options. Doesn't really need anything. I'm going to try Jason Diaz stock mid motor setup at OC/RC tomorrow with an inline shortie back against the motor with speed control on the ESC shelf. How 2009.......
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Old 05-23-2015, 03:59 PM   #12025
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In talking to some of the team drivers at OCRC, neither are they!

I wonder if there will be any changes to the RT6?
I didn't see any team drivers running sideways battery Wednesday night, nor Friday night. Cody King wasn't running it.
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Old 05-23-2015, 10:01 PM   #12026
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Blown out track rx and esc against servo sideways shorty was really good more grip than using a square .Wish I would of tried it sooner .
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Old 05-24-2015, 04:19 AM   #12027
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Anybody run the new RF brass pivot on a loose dirt track with success!? And when will the unicorn new rear arms be available again, can't seem to find them anywhere?
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Old 05-24-2015, 07:07 AM   #12028
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Does the new kit come with all the updated parts and aluminum hangers / hubs?
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Old 05-24-2015, 07:28 AM   #12029
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Quote:
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Does the new kit come with all the updated parts and aluminum hangers / hubs?
no
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Old 05-24-2015, 08:34 AM   #12030
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Last night was my first time out with the RB6. Bought it used but in excellent shape, mounted the electronics, and threw it on the track. Was pleasantly surprised to be tuning more steering into it right off the bat. Very happy.

I'm guessing nobody runs the speed control above the battery with a mid motor setup because I have the smallest SC and it barely fit under the body. Can anyone recommend a body with more clearance back there? Was hoping to fit a Reedy black box.
Yes it's a homemade shelf and battery strap. I broke the strap that came with it.

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?
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