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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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09-26-2013, 08:38 AM

#8266

Jason Snyder

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Quote:

Originally Posted by Tyler101

Anybody know what is the part number for a gear diff that drops in? I assume maybe out of the RTR SC....

correct

09-26-2013, 09:02 AM

#8267

Rfury

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Quote:

Originally Posted by Tyler101

Anybody know what is the part number for a gear diff that drops in? I assume maybe out of the RTR SC....

I have yet to find a part number for a complete gear diff. You will have to buy the parts individually and put it together.

UM605
UM611
UM610
UM612
UM613
ORG045S

09-26-2013, 09:05 AM

#8268

orangutanracer

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I don't believe there is just 1 part number for the gear diff like there is for the ball diff (KYOUMW602)

I think you will need to assemble one out of the following parts:
KYOUM605
KYOUM610 or KYOVZW424
KYOUM611
KYOUM612
KYOUM613
KYOORG045S

I don't know but I assume Tebo would run the VZW424 bevel gears over the UM610 ones.

09-26-2013, 10:50 AM

#8269

adam_u

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Quote:

Originally Posted by gelshocker

+
rear 521-1 arms
rear outer hinge pins

Everything else in the box, which I think is pretty cool.

Outer hinge pins not necessary, just open up the small outer hole on the flat wishbones with a reamer or drill bit and you can use the std RB6 bits, with Kyosho prices every little helps!

Bloody love my 6

09-26-2013, 11:35 AM

#8270

Razathorn

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Quote:

Originally Posted by adam_u

Outer hinge pins not necessary, just open up the small outer hole on the flat wishbones with a reamer or drill bit and you can use the std RB6 bits, with Kyosho prices every little helps!

Bloody love my 6

I did the same thing. Body reamer + 2 mm spacers on ends and done. Having said that, I much prefer the 2.5mm capture screws as those m3 nuts are just the odd man out on the car.

09-26-2013, 02:55 PM

#8271

offroad dude

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Quote:

Originally Posted by orangutanracer

Does anybody know where you can buy VZW424 in the US?

09-26-2013, 05:40 PM

#8272

Rfury

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Here is the winning setup right off the Kyosho site.

http://www.kyoshoamerica.com/assets/...ldChampion.pdf

09-26-2013, 06:40 PM

#8273

the big rc

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Yup just posted it on my site too http://www.thebigrc.com/?p=4894

09-27-2013, 12:43 AM

#8274

Lonestar

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why does the setup sheet say 7.5T when he was running a 6.5T?

09-27-2013, 05:41 AM

#8275

Rfury

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Quote:

Originally Posted by Lonestar

why does the setup sheet say 7.5T when he was running a 6.5T?

Even Jared's own blog said he had a 7.5 in the car.

Here you can see the 7.5T on the endbell of the motor.

http://www.neobuggy.net/wp-content/u...9/AT4_8462.jpg

09-27-2013, 06:16 AM

#8276

Kraig

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That picture seems to be taken on a different day. I say that because if you look at his front tires they are not ribbed.

In addition, if you look at this image you will see it isn't a 7.5. So I would bet that they were playing with different motors to see which ones they liked best on the sugar track.