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Kyosho Ultima RB6 & RB6.6 Car Thread

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R/C Tech ForumsThread 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:

Main chassis - UM731 - $125.99
Side guards - UM732 - $9.99

Battery Holder:

Battery plate - UM733 - $8.99
Battery foam - UM741 - $7.99

Rear Bulkheads:

MM3 and Laydown - UM740 - $9.99
- MM3 bulkhead
- Laydown bulkhead
- Swaybar Holders

3 Gear Transmission (MM and RM):

Transmission - UM734 - $10.99
- transmission cases
- spacers
- caps
- plastic FR & RR suspension hangers
Gear Cover - UM735 - $6.99

Laydown Transmission (3 and 4 gear possible):

Transmission - UM736 - $10.99
- transmission cases
- spacers
- caps
- required extra hardware
- pastic FR suspension hanger
40T idler - UM737 - $6.99
Motor plate - UM738 - $18.99
Gear cover - UM739 - $6.99

Body:

Blade body - UMB05 - $27.99

Optional Parts:

Lightweigt Blade body - UMB05LW - $31.99
Aluminum FR suspension hanger - UMW705B - $28.99 (may be able to file UMW705 to fit)
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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12-05-2012, 02:06 PM

#3136

Gitsum

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I agree the Pl body is ugly but it might just be the paint. Ill be building mine soon and order the Jc Finnisher for mine.

12-05-2012, 02:10 PM

#3137

lbckevin

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I love my stock body all painted up...

12-05-2012, 02:47 PM

#3138

aloksatoor

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Agreed the stockers the best right now followed by the jconcepts. Common FTW knock it out of the park with a night fox style body

12-05-2012, 04:15 PM

#3139

Gitsum

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Was looking at setups and there really aren't a ton to chose from for indoor tight medium bite clay. Will probably just start with the kit setup unless someone knows of a better one.

12-05-2012, 04:21 PM

#3140

aloksatoor

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Quote:

Originally Posted by Gitsum

Was looking at setups and there really aren't a ton to chose from for indoor tight medium bite clay. Will probably just start with the kit setup unless someone knows of a better one.

Just keep a shorty and a pair of rear gold springs handy and then tune on from factory setup. Try the japanese ones on the kyosho site first.

12-05-2012, 05:17 PM

#3141

B00t13g

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Has anyone tried running the narrow rear setup on medium bite? I keep breaking rf2s and the aluminum one is back ordered. Everyone local is having the same issue.

12-05-2012, 06:24 PM

#3142

JohnWinn

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What ESC's are most of you running?

Orion R10, Tekin RS/RS Pro, Hobbywing V3?

12-05-2012, 06:33 PM

#3143

B00t13g

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R10 pro.

12-05-2012, 07:02 PM

#3144

Gopher15

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Quote:

Originally Posted by JohnWinn

What ESC's are most of you running?

Orion R10, Tekin RS/RS Pro, Hobbywing V3?

Tekin RS

12-05-2012, 07:41 PM

#3145

Yeti AS3

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R10 in the RB6 and Speed Passion GT2.0 Pro in the RB5.

12-05-2012, 08:02 PM

#3146

silvalis

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VTX10 w/ caps moved.

12-05-2012, 08:06 PM

#3147

silvalis

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Quote:

Originally Posted by B00t13g

Has anyone tried running the narrow rear setup on medium bite? I keep breaking rf2s and the aluminum one is back ordered. Everyone local is having the same issue.

I am, although my track varies between low and low-medium. Better rear grip out of corners. Initial turn in isn't that much different. Mid corner turn is probably a bit worse.

How are you breaking these? Cartwheeling?

12-05-2012, 08:07 PM

#3148

RodneyB

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Quote:

Originally Posted by B00t13g

Has anyone tried running the narrow rear setup on medium bite? I keep breaking rf2s and the aluminum one is back ordered. Everyone local is having the same issue.

This reminds me. Is there a part number for the thicker RF2 plastic suspension block that comes with the kit? The one that comes with the UM508C tree is the older RF2 with the thin edges. Try putting one of those on and you will be replacing it every few races if your track has any sizable jumps at all. Kyosho must have found that out and beefed it up, but how do you buy it? Am I missing something?

And yes, I have tried the narrow and got it working quite well. No reason not to try it out and see how it works for you. The RF block is much thicker and will hold up fine.

12-05-2012, 08:12 PM

#3149

fastestwon

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speed passion Reventon Pro

12-05-2012, 08:37 PM

#3150

B00t13g

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Quote:

Originally Posted by silvalis

The kit one lasted 10 packs and the replacements last like two qualifiers. I wish I knew the correct part number for the upgraded plastic one. I found an aluminum rf2 from Losi parts house!