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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 11-06-2015, 08:35 AM   #12706
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Quote:
Originally Posted by Trauma_ View Post
Alright Kyosho, Losi has a new buggy. Team Associated just released an all hop ups included buggy. Help us Kyosho. Could you follow Associated's lead and throw some goodies (3gear, etc?!?!) in with the new kits please?!?!?!?
If and when a new rb6 comes out I'll buy one but I'm really interested in the new 22.3.0...
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Old 11-06-2015, 09:26 AM   #12707
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If and when a new rb6 comes out I'll buy one but I'm really interested in the new 22.3.0...
Care to sell the RB6 then? hahaah
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Old 11-06-2015, 02:38 PM   #12708
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I think we will see a refresh of the RB6 some time next year with new side pods, new chassis for sideways stock, and maybe 3 gear and other things. No way there is an RB7 coming any time soon
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Old 11-06-2015, 02:53 PM   #12709
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Do Kyosho used to sell upgrade kit when a new version is out ?
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Old 11-06-2015, 04:21 PM   #12710
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Where can I get the JTP shock tower? The website doesn't seem to work...
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Old 11-06-2015, 04:22 PM   #12711
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Originally Posted by nikorentin View Post
Do Kyosho used to sell upgrade kit when a new version is out ?
Sometimes. There isn't enough different to warrant an upgrade kit.
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Old 11-06-2015, 04:47 PM   #12712
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Originally Posted by whitrzac View Post
Sometimes. There isn't enough different to warrant an upgrade kit.
Yeah, I can't see much that would warrant an update. Ok, maybe a chassis that accommodates a sideways battery layout and a 3 gear tranny but that's about it... maybe include the gear diff with the aluminum half...
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Old 11-06-2015, 05:30 PM   #12713
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Yeah, I can't see much that would warrant an update. Ok, maybe a chassis that accommodates a sideways battery layout and a 3 gear tranny but that's about it... maybe include the gear diff with the aluminum half...
3 gear, new chassis, new front and rear end geometry that fixes the sidebite issue that hurts the car in the corners. And lower the price. I love my ZX-6, but I will not run any other Kyosho car due to price and how old the tech is. Their best bet would be to just copy Shins design for the YZ-2 with YMax transmission and call it the RB7.
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Last edited by jpcopeland1; 11-07-2015 at 09:49 AM.
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Old 11-06-2015, 06:41 PM   #12714
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Originally Posted by jpcopeland1 View Post
3 gear, new chassis, new front and rear end geometry that fixes the sidebite issue that hurts the car in the corners. And lower the damn price. I love my ZX-6, but I will not run any other Kyosho car due to price and how old the tech is. Their best bet would be to just copy Shins design for the YZ-2 with YMax transmission and call it the RB7.
I run on super high bite and find that what may be an issue of low side bite on medium grip causes the car to corner very quickly when grip is high.... that said, the fastest 2wd on our track is no doubt the rb6.... by 1/2 comparing hotlaps...
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Old 11-07-2015, 04:00 AM   #12715
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Hello guys,

I wanted to try the UMW724 steering brace in my car but it seems there is a binding problem after installation. Added the shims that came with the kit but the binding remains...any ideas?
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Old 11-07-2015, 09:46 AM   #12716
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Quote:
Originally Posted by symmetricon View Post
I run on super high bite and find that what may be an issue of low side bite on medium grip causes the car to corner very quickly when grip is high.... that said, the fastest 2wd on our track is no doubt the rb6.... by 1/2 comparing hotlaps...
That's exactly what I was saying, at SRS (super high bite clay), the car was great. Got it to OC/RC (medium at best) It was BAD....... I slaughtered it with a B5M lite, and was nearly on the same lap times with a YZ-2 (without the YMax conversion). The car is showing age, and needs to be updated.
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Old 11-07-2015, 09:46 AM   #12717
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Originally Posted by nitroargi View Post
Hello guys,

I wanted to try the UMW724 steering brace in my car but it seems there is a binding problem after installation. Added the shims that came with the kit but the binding remains...any ideas?
Is there excess play without the shims?
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Old 11-07-2015, 09:51 AM   #12718
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Quote:
Originally Posted by symmetricon View Post
If and when a new rb6 comes out I'll buy one but I'm really interested in the new 22.3.0...
I have one on pre0order as well. Interested to see what TLR has come up with. If it's not suitable for me, i'll sell it real quick. I am first batch with amain.
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Old 11-07-2015, 10:38 AM   #12719
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Is there excess play without the shims?
No but there is stil some binding...took it out again until I can figure it out
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Old 11-07-2015, 11:02 AM   #12720
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Forgot to mention I already have the aluminum KYOSHO steering rack and bell cranks installed
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