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Kyosho Ultima RB6 & RB6.6 Car Thread

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Kyosho Ultima RB6 & RB6.6 Car Thread

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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
Please read: This is a community-maintained wiki post containing the most important information from this thread. You may edit the Wiki once you have been a member for 90 days and have made 90 posts.
 
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 06-10-2013, 07:51 PM
  #7201  
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Is there anyway to run thicker front hexes?
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Old 06-10-2013, 07:54 PM
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Originally Posted by RCBuddha View Post
Is there anyway to run thicker front hexes?
Why the 6 can move the front axle +/-3mm in or out?!
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Old 06-10-2013, 08:33 PM
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Originally Posted by Jam-Air View Post
Why do some run the rb-5 front axle on the 6?
usually due to 3rd party wheel hex depth. K fronts have a shallow hex.
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Old 06-10-2013, 09:00 PM
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Originally Posted by Gitsum View Post
Why the 6 can move the front axle +/-3mm in or out?!
see below

Originally Posted by silvalis View Post
usually due to 3rd party wheel hex depth. K fronts have a shallow hex.
I have a few B4.2 wheels left over which I would like to use up.
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Old 06-10-2013, 09:39 PM
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Originally Posted by RCBuddha View Post
see below



I have a few B4.2 wheels left over which I would like to use up.
Alternatively you can use the rb5 axles which you can put your own hex on.
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Old 06-10-2013, 09:40 PM
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Originally Posted by Gitsum View Post
Why the 6 can move the front axle +/-3mm in or out?!
Originally Posted by silvalis View Post
usually due to 3rd party wheel hex depth. K fronts have a shallow hex.
Originally Posted by silvalis View Post
Alternatively you can use the rb5 axles which you can put your own hex on.
That's what I thought, thanks!

On another note: Did someone compile a list of screws for the RB6? I could swear Bob Barry had a list going...
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Old 06-10-2013, 09:45 PM
  #7207  
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Reason I mentioned you can move the axle in or out is I usually run pl front wheels which have a deep hex. I just move the axle out and all is good by just flipping the spacers. Just saying you can get the proper width to run almost any front wheel just need to figure out what spacers need to go where to achieve it without spending the cheddar for different hexs.
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Old 06-10-2013, 10:04 PM
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Originally Posted by Gitsum View Post
Reason I mentioned you can move the axle in or out is I usually run pl front wheels which have a deep hex. I just move the axle out and all is good by just flipping the spacers. Just saying you can get the proper width to run almost any front wheel just need to figure out what spacers need to go where to achieve it without spending the cheddar for different hexs.
So.... You can run b4.2 front and rears on the RB6? Sorry I am just confused
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Old 06-10-2013, 10:59 PM
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Originally Posted by Teambcw View Post
So.... You can run b4.2 front and rears on the RB6? Sorry I am just confused
Yes you can but the rears will be slightly narrower overall by just a hair. If its an issue you can go with the longer rear axles with three lines for full adjustability front and rear.
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Old 06-10-2013, 11:54 PM
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How is the rear track adjusted? I see the three lines but unsure on how to adjust the width.
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Old 06-11-2013, 09:39 PM
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Just ordered a car today that I will pick up and start building tomorrow. Anyone have a good set up for stock mid motor? I'm replacing a b4.2 with my new rb6

Can't get good consistent traction with my b4.2 at my home track which is hard pack with a bit of fine fluff. Took it to a clay tack though and it was good. Thought about an xfactory car just got tired of waiting
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Old 06-11-2013, 10:50 PM
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What are the differences between the different arms, hubs and other little bits?
Like "type B" hubs, "middle arms", "type B" pivot block etc...
Also the difference between normal flat rear arms and the gulwing ones?
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Old 06-11-2013, 11:46 PM
  #7213  
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Does anyone have a pic of their flat rear arms installed on their car?
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Old 06-12-2013, 12:17 AM
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Originally Posted by john watkins View Post
Does anyone have a pic of their flat rear arms installed on their car?
bit hard to see... http://www.petitrc.com/setup/kyosho/...ace2013012427/

hara has flat arms here (mm) http://www.petitrc.com/setup/kyosho/...ace2013012427/
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Old 06-12-2013, 01:48 AM
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I'm about to convert my RB6 to a Vega Mid. Suits UK tracks better
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