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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 10-03-2012, 12:54 PM   #991
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no it just has cut lines on the body however they are small and wont make a big difference between layouts.

check an online manual for pictures
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Old 10-03-2012, 03:18 PM   #992
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Is anyone here running Losi BB pistons with any success? Thinking about trying them. Let me know.
I just changed to the Losi pistons which I will try at practice on Saturday. The timing system wont be on , but it will be on Sunday. Sunday I can get some lap time comparisons to last weeks run. Our track is very consistent.
Anyway, I have 55s front and 2 hole 1.6 rears 35/30 to start. I run the same pistons in the +10 rb5 with 32.5/27.5. The stock setup is great for a track like the nats but we have bigger jumps.
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Old 10-03-2012, 04:12 PM   #993
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How many have broken steering rack. I haven't got one text, but have heard of people braking it!
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Old 10-03-2012, 05:55 PM   #994
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Hey, I am in the middle of building my RB6. I am new to Kyosho and I am using the Jared Tebo setup and I am hoping for some help. When I use the RB5 front axles there is some play unless I use a 1 mm spacer. Should I use the spacer? If so, should I use it between the pin and the bearing? Any help you can provide would be appreciated.
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Old 10-03-2012, 06:02 PM   #995
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Quote:
Originally Posted by Hurt'n4SomeDirt View Post
Hey, I am in the middle of building my RB6. I am new to Kyosho and I am using the Jared Tebo setup and I am hoping for some help. When I use the RB5 front axles there is some play unless I use a 1 mm spacer. Should I use the spacer? If so, should I use it between the pin and the bearing? Any help you can provide would be appreciated.
It goes on the inside of the spindle away from the hex.
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Old 10-03-2012, 06:22 PM   #996
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It goes on the inside of the spindle away from the hex.
So I should put the spacer on before putting the axle through the bearings?
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Old 10-03-2012, 06:35 PM   #997
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So I should put the spacer on before putting the axle through the bearings?
Yes.
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Old 10-03-2012, 06:40 PM   #998
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Quote:
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So I should put the spacer on before putting the axle through the bearings?
Quote:
Originally Posted by Yeti AS3 View Post
Yes.
Yeap.
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Old 10-03-2012, 06:52 PM   #999
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Why use the old axle?
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Old 10-03-2012, 07:38 PM   #1000
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Why use the old axle?
its what tebo runs in the setup, i went with the stock axles to see how it goes if im unhappy maybe ill try the old ones
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Old 10-03-2012, 08:04 PM   #1001
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My chasis setup

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Old 10-03-2012, 08:38 PM   #1002
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Had some time at work today I still have to do some wiring.
Attached Thumbnails
Kyosho Ultima RB6 & RB6.6 Car Thread-rb6-1.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-rb6-2.jpg  
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Old 10-03-2012, 10:11 PM   #1003
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1st night with the rb6 gotta say its pretty dam good. all other rbs i had to run hubs with toe--not with this car its got good forward bite with the stock hubs chanGes direction nicely and jumps super smooth, after 1 pack i totally forgot about the price tag.
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Kyosho Ultima RB6 & RB6.6 Car Thread-rb6-2-.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-rb6-3-.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-rb6.jpg  
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Old 10-03-2012, 10:42 PM   #1004
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i am looking forward to seeing some other race video of the RB6 in action . post up if you get some . i race again sunday will be video taping the mains again . my shorty packs came today so i will be using them and making a few small changes to the setup .
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Old 10-04-2012, 12:40 AM   #1005
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got all the electronics in the rb6 tonight.

tekin rs
radiopost blue servo and reciever
mylaps
protek 60c shorty
trinity d3.5

weighed in at 1562grams race ready
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