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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 ForumsThread 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 03-17-2013, 01:51 PM
  #5701  
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Tebo takes A2 as well for the class win.
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Old 03-17-2013, 02:02 PM
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Originally Posted by Cpt.America
Uhm.. Tebo and the 6 looked amazing. But am I the only one that thinks there was some dirty driving in that race by the other guys in the front? Cav took one in the kiester, with no lube, 4 feet before the finish line. wth?

(edit: I spy gil losi jr, there at the end! )
I thought the same thing. It happens fast, but it looked like Maifield got into Naoto after the triple and a-holed Cav at the end. Naoto did go a little wide and maybe tried to get back into his line too late.
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Old 03-17-2013, 02:23 PM
  #5703  
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Congrats to Tebo and The other members of the red army!
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Old 03-17-2013, 03:20 PM
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I started the build nd have a question regarding the front hubs installing on the arms. With the 1mm plastic collar it seems to bind a little should I replace with the .5 plastic collar
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Old 03-17-2013, 03:45 PM
  #5705  
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Originally Posted by Speedychris22
I started the build nd have a question regarding the front hubs installing on the arms. With the 1mm plastic collar it seems to bind a little should I replace with the .5 plastic collar
I would build the kit as-is.. run a couple packs through it... and check again. The car has tight tolerances, but it will loosen up all on it's own. Same with the gears in the gearbox.
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Old 03-17-2013, 05:29 PM
  #5706  
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Originally Posted by revrace
Does anyone know of an Aluminum Servo Horn that fits the RB6? My RB5 horn doesn't work and I stripped a plastic one recently. Thanks
I put the tlr22 alum horn on mine..
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Old 03-17-2013, 08:00 PM
  #5707  
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first run of my RB6 this past weekend. have had it build and ready for a couple months, just no opportunity to run it until now.

1st drive/meet, out of the box setup.. and did far better (7th in the Amain) than I ever did with my TLR 22 after countless changes. VERY happy.
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Old 03-17-2013, 08:06 PM
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Originally Posted by revrace
Does anyone know of an Aluminum Servo Horn that fits the RB6? My RB5 horn doesn't work and I stripped a plastic one recently. Thanks
I use the Kyosho LAW42 servo horns on both of my RB6's... Have had the same two servo horns for 2+years now (with KO RSX Response servo's), never skipped a beat and I run 3-4 days a week. R'Dub
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Old 03-17-2013, 08:10 PM
  #5709  
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Here is a quick pic before the start of the build.
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Old 03-17-2013, 08:32 PM
  #5710  
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Originally Posted by Speedychris22
Here is a quick pic before the start of the build.
aaahhh yeah! get that started!
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Old 03-17-2013, 09:05 PM
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Originally Posted by Speedychris22
I started the build nd have a question regarding the front hubs installing on the arms. With the 1mm plastic collar it seems to bind a little should I replace with the .5 plastic collar
in regards to the caster block/arm spacing, you will only use quantity one, 1mm shim towards the back of the block (if building per the manual with a neutral/middle front wheelbase). The inserts were specifically designed to have 1mm built into them already.
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Old 03-17-2013, 10:08 PM
  #5712  
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Anybody have a link to a video of A2?
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Old 03-17-2013, 10:14 PM
  #5713  
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Originally Posted by Cpt.America
Anybody have a link to a video of A2?
http://www.youtube.com/watch?v=NShjpDo15UI
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Old 03-17-2013, 10:37 PM
  #5714  
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Originally Posted by Losiho
HOlYCRAP THAT PASS!@! Tebo was a monster that race.... maybe the best offroad race iv seen.
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Old 03-18-2013, 04:15 AM
  #5715  
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Originally Posted by Cpt.America
HOlYCRAP THAT PASS!@! Tebo was a monster that race.... maybe the best offroad race iv seen.
yep that was awesome

like to see the setup he ran on the mid mount
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