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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 07-09-2013, 11:09 PM   #7531
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10 inches per wire is more than enough and will most likely need to be trimmed down depending on the orientation of your esc and motor tabs.
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Old 07-09-2013, 11:16 PM   #7532
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Quote:
Originally Posted by Life_livin View Post
10 inches per wire is more than enough and will most likely need to be trimmed down depending on the orientation of your esc and motor tabs.
Lol per wire of course, Cheers
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Old 07-10-2013, 11:25 PM   #7533
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Originally Posted by gelshocker View Post
Anyone?

Another quick question: those running MM with the ESC behind servo: would 10" wire from ESC to motor be enough? Thx!
http://www.amainhobbies.com/product_...auge-25-Black-

Will last you a few years of wiring cars, and is the best wire you can use. Cut to exact lengths for a nice clean install... You can thank me later
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Old 07-10-2013, 11:52 PM   #7534
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Wet noodle is fantastic wire but another great wire to checkout is TQ racing, it's super flexible and in my opinion better suited for 1/10 buggies due to it being considerably smaller than deans. http://www.amainhobbies.com/product_...e-Wire-Black-3
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Old 07-11-2013, 02:04 AM   #7535
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I sold my 22 now just waiting for my RB6 to arrive to see what this is like.
The first page has a huge amount of info which has helped me out a lot already in understanding the car and
even looking thru the instruction manual some of the build steps that look a little confusing.

I plan to just build the car as the kits set up and go from there but looking into upgrade parts and
does anyone know much about the following hangers and what the different bushings will do e.g. anti-squat, toe, width?
(I do apologise if this has been covered but couldn't find any posts on it or I just missed them )

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Old 07-11-2013, 02:44 AM   #7536
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Hello kyosho brothers, I will have a rb6 at the end of the month. What all spur gears fit the rb6, all I found was 76 -78 .
Servos I think I want a low profile servo, I been running savox I saw a 1251mg an a 1252mg. What do u guys think of these servos?

Last question, I am going to buy new lipos either regular size or shorty lipo. Which should I go with?
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Old 07-11-2013, 05:07 AM   #7537
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Quote:
Originally Posted by KalEl63 View Post
I sold my 22 now just waiting for my RB6 to arrive to see what this is like.
The first page has a huge amount of info which has helped me out a lot already in understanding the car and
even looking thru the instruction manual some of the build steps that look a little confusing.

I plan to just build the car as the kits set up and go from there but looking into upgrade parts and
does anyone know much about the following hangers and what the different bushings will do e.g. anti-squat, toe, width?
(I do apologise if this has been covered but couldn't find any posts on it or I just missed them )

UMW705
UMW706
Those suspension holders allow you to adjust width and/or toe-in. Anti-squat is still adjusted via shims under the hangers. I put them on my car a few weeks ago and cannot fault their fit & finish at all. Here's a bit more information here. If I get time in the next few days I'll scan in the eccentrics chart they provide with the hangers.

Good luck with the new RB6.
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Old 07-11-2013, 05:15 AM   #7538
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Quote:
Originally Posted by kyoshoracer77 View Post
Hello kyosho brothers, I will have a rb6 at the end of the month. What all spur gears fit the rb6, all I found was 76 -78 .
Servos I think I want a low profile servo, I been running savox I saw a 1251mg an a 1252mg. What do u guys think of these servos?

Last question, I am going to buy new lipos either regular size or shorty lipo. Which should I go with?
I use Avid slipper and full size servo. Someone else will need to answer those questions.

In regards to the battery everyone I've seen use the full size battery in rear motor configuration has eventually moved to the shorty, thus I would encourage you to try the shorty if running rear motor. I personally use SMC's 4300mAh shorty but there are good shorties from other companies.
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Old 07-11-2013, 05:26 AM   #7539
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Quote:
Originally Posted by kyoshoracer77 View Post
Hello kyosho brothers, I will have a rb6 at the end of the month. What all spur gears fit the rb6, all I found was 76 -78 .
Servos I think I want a low profile servo, I been running savox I saw a 1251mg an a 1252mg. What do u guys think of these servos?

Last question, I am going to buy new lipos either regular size or shorty lipo. Which should I go with?
You can use the same spur as the B4 if you use the B4's slipper pads as well.

I like the Savox servos. I would use a full-sized servo with the RM config and a low-profile with the MM. The low-profile is used in MM to give you more space up front to mount the ESC and receiver.

I would just get a shorty. This will allow you to mount the receiver on the chassis behind the servo (depending on where you position the battery). In the MM config, I would run a saddle. I ran my MM with a shorty but the car felt light with it. It felt much better with a saddle pack.
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Old 07-11-2013, 07:42 AM   #7540
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What's the advantage of going with an Avid slipper clutch VS Stock?
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Old 07-11-2013, 07:45 AM   #7541
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Originally Posted by Orion_2kTC View Post
What's the advantage of going with an Avid slipper clutch VS Stock?
It's lighter for stock class.
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Old 07-11-2013, 08:01 AM   #7542
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I like the stock slipper with the with the KYOUM572 SP2 WC set up.

This is a replacement Kyosho Slipper Spring Set, and is intended for use with the Kyosho Ultima RB5 SP2 WC and SC-R SP 1/10 scale vehicles. This slipper spring set allows finer slipper adjustments for more traction and consistent slipper operation. This set up is the shit . I tried the avid with the avid top shaft and it only lasted one pack it was loud that's might be just my experience.
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Old 07-11-2013, 08:28 AM   #7543
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Quote:
Originally Posted by LT FAB View Post
I like the stock slipper with the with the KYOUM572 SP2 WC set up.

This is a replacement Kyosho Slipper Spring Set, and is intended for use with the Kyosho Ultima RB5 SP2 WC and SC-R SP 1/10 scale vehicles. This slipper spring set allows finer slipper adjustments for more traction and consistent slipper operation. This set up is the shit . I tried the avid with the avid top shaft and it only lasted one pack it was loud that's might be just my experience.
Brant,
you're supposed to be loaded up and on your way to Chico. No time for posting. LOL.

In all seriousness, I have that slipper set up (kyoum572) and it's pretty nice.
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Old 07-11-2013, 10:51 AM   #7544
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what do you guys do for stock gearing? Assuming you aren't running the Avid setup....
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Old 07-11-2013, 11:10 AM   #7545
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Originally Posted by paintchip31 View Post
Thanks guy' it was the wheels . Now on to the AVID slipper when I opened it up I installed it just as the pic showed! (I NEED THE PICS LOL) Anyway there are 3 small washers and a larger aluminum one that are still in a bag un opened I don't see where they would go I will take a pic of the bag and post in a bit . Thanks again guy's.
Those are extra 3/16" axle shims for running the Triad in a B44.1 and the thick washer is a spring spacer for Losi drivers if the have the "long" topshaft. For the RB6, you won't need any of those.
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