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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 01-25-2015, 08:52 AM   #11581
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Quote:
Originally Posted by Potoczak View Post
I have been running my battery this way for a few weeks now since I switched to mid motor. My battery sits right up against the motor. Haven't had any issues at all.
Tape a piece of foam on the back or some weather stripping foam. You have to have the new chassis to use the rt6 stop or drill holes.
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Old 01-25-2015, 10:34 AM   #11582
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Tape a piece of foam on the back or some weather stripping foam. You have to have the new chassis to use the rt6 stop or drill holes.
Newer chassis as In the lightweight chassis?
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Old 01-25-2015, 12:26 PM   #11583
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There is a newer chassis part from Kyosho UM700B Aluminum Hard Main Chassis (A7075T6/RB6) KYOUM700B
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Old 01-25-2015, 12:34 PM   #11584
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There is a newer chassis part from Kyosho UM700B Aluminum Hard Main Chassis (A7075T6/RB6) KYOUM700B
very helpful information. I appreciate it. Is this new chassis also lighter? Looks like it might be
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Old 01-25-2015, 01:15 PM   #11585
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No, has 2 extra holes for a speedo trey I think.
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Old 01-25-2015, 04:43 PM   #11586
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Originally Posted by yodace View Post
No, has 2 extra holes for a speedo trey I think.
I think it is a little lighter, for low bite tracks...
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Old 01-25-2015, 05:24 PM   #11587
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Originally Posted by invalidprotocol View Post
A shock tower?
Kyoum787. I miss typed it lol
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Old 01-25-2015, 07:25 PM   #11588
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Don;t think its lighter. I have one from a kit 2 years old and one I built last month, the newer only has extra holes. Not extra machining like my LW chassis.
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Old 01-25-2015, 11:12 PM   #11589
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It's not lighter, just has more mounting holes.
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Old 01-26-2015, 10:08 AM   #11590
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Quote:
Originally Posted by RBraswell View Post
Any advice on how I can prevent the battery from sliding back onto the motor? I've seen a few folks run this batter setup but have not figured out how they keep the battery off.
Hey,

I had the same problem. I used a thin piece of carbon fibre about 1.5mm thick drilled a hole in it, drilles a hole in the waterfall brace aswell from the backside and screwed the carbon fibre against the waterfall brace from the motor side.
Does 100% what it should as it prevents the battery from coming to close to the motor. Unfortunatelly you can only drill a hole on the opposite side of the motor plate as there is not enough romm between the motor plate and the waterfall brace to attach the carbon fibre to both sides. Not perfect but did not have any problems with it in about half a year.

Regards.

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Old 01-26-2015, 10:24 AM   #11591
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Default Battery stop

Use part number um787.
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Old 01-26-2015, 01:02 PM   #11592
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I ended up cutting a piece of battery foam and shoe gooing it in the middle of the waterfall brace. it keeps the battery from the motor and the foam does not touch the motor so its win win and when i want to remove it all I have to do is peel the adhesive off!

Thanks for the ideas. BTW shoe goo is awesome.
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Old 01-26-2015, 04:54 PM   #11593
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What rear pivots are guys using? I'm trying to look at different things to try. Might look into Cin/Bin with the sideways pack. Din rolls too much for me. Bin/A may me too wide.
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Old 01-26-2015, 05:07 PM   #11594
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Is there an explanation somewhere of what wide vs narrow rear pivots does? Very interested in learning.
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Old 01-26-2015, 05:14 PM   #11595
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Quote:
Originally Posted by Everybody79x View Post
Is there an explanation somewhere of what wide vs narrow rear pivots does? Very interested in learning.
first post, good explanation.
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