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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
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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 10-28-2013, 12:15 PM
  #8506  
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Got a question for you guys. I'm making the switch from b4.2 to a rb6 and I got about a 1000 dollars worth of good tires and I was wondering if I could just switch to the rb6 hexes and put associated hexes?
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Old 10-28-2013, 12:22 PM
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Originally Posted by Madman1 View Post
Got a question for you guys. I'm making the switch from b4.2 to a rb6 and I got about a 1000 dollars worth of good tires and I was wondering if I could just switch to the rb6 hexes and put associated hexes?
If your already running hexes and have the hex wheel you are good to go with your current wheels.
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Old 10-28-2013, 12:55 PM
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The rear rims work perfectly. Just run locking wheel nuts not nylon. With the front rims you will need to shim them as the ae rims have a deeper hex comparied to the kyosho rims.
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Old 10-28-2013, 02:00 PM
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Originally Posted by Holmberg418 View Post
The rear rims work perfectly. Just run locking wheel nuts not nylon. With the front rims you will need to shim them as the ae rims have a deeper hex comparied to the kyosho rims.
Oh yea I forgot about that part where the wheels would rub. I Actually just moved the spacer from the inside to the outside and problem was solved.
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Old 10-28-2013, 04:13 PM
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I use AKA wheels and the AVID longer rear axle conversion.
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Old 10-28-2013, 06:14 PM
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Originally Posted by Jason Snyder View Post
I use AKA wheels and the AVID longer rear axle conversion.
Haven't seen any new videos from you lately ?
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Old 10-28-2013, 07:54 PM
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Originally Posted by Holmberg418 View Post
What shims should you use when you use the losi pistons?
I used the shims from the loss scte diff. They are a perfect fit. The scte guys throw away when they go to the 2.0 diff housings.
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Old 10-30-2013, 01:08 AM
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Originally Posted by Madman1 View Post
Got a question for you guys. I'm making the switch from b4.2 to a rb6 and I got about a 1000 dollars worth of good tires and I was wondering if I could just switch to the rb6 hexes and put associated hexes?
The b4 and rb6 wheel offsets are not the same. Run the avid long axles so that you can run b4 rear wheels. The rb5 front axles work better than stock rb6 for b4 wheels (wheels would be skinnier though).
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Old 10-30-2013, 09:01 AM
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So RB6's out of stock at most of the main online retailers...does that spell an SP coming very shortly or just an increased interest after Tebos world championship. I am looking for a 2nd but in no rush and likely would grab an SP just cause'. I love my RB6 but new and shiny is new and shiny LOL
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Old 10-30-2013, 09:16 AM
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RT6 production was focused on since the release.
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Old 10-30-2013, 09:18 AM
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Originally Posted by Tyler101 View Post
So RB6's out of stock at most of the main online retailers...does that spell an SP coming very shortly or just an increased interest after Tebos world championship. I am looking for a 2nd but in no rush and likely would grab an SP just cause'. I love my RB6 but new and shiny is new and shiny LOL
im guessing SP as well.
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Old 10-30-2013, 09:39 AM
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If an SP does come out I'm set as my car has all of that on it already.
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Old 10-30-2013, 01:19 PM
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For 25+4 caster how much shim do I need on the steering?
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Old 10-30-2013, 07:35 PM
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Originally Posted by K_King View Post
For 25+4 caster how much shim do I need on the steering?
I feel like its 1mm for going from 25-30, I don't think there is a shim small enough for 1dg
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Old 10-30-2013, 08:53 PM
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Originally Posted by K_King View Post
For 25+4 caster how much shim do I need on the steering?
are you referring to bump steer? 2 mm and i can't visually see any bump steer as the tire goes up and down as the arm swings. I don't feel any awkward steering either.
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