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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 01-05-2013, 03:53 PM   #3961
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Quote:
Originally Posted by evolution03 View Post
Any specific reason why ? Do they last longer or do others just not work well with Kyosho ?
Ceramics are harder and smoother on the surface causing them not to grab and you to tighten it down more.

Carbides allow you to loosen your diff, and the stock KYO or BFAST parts will last quit a long time and stay smooth
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Old 01-05-2013, 04:24 PM   #3962
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agreed the stock diff is butter smooth. I did notice the other day that the trannys in the other cars made much more noise than the rb6. I could barely hear my rb6 go by the drivers stand
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Old 01-05-2013, 04:56 PM   #3963
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...you like it? Seems like a good weight savings being aluminum vs. steel and obviously the heat sink is a good thing too.
steel?.. I have one on my sc-r and it's considerably more flexible than the one on my rb6. I don't often recommend against a company that makes stuff for kyosho's but in this one case, i would personally recommend spending the money and a good kyosho motor plate.
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Old 01-05-2013, 05:08 PM   #3964
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.
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Old 01-05-2013, 05:13 PM   #3965
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Guys, which Rear Susp. holders are the narrow ones? Gun metal.

Edit: Do you have what it seems to me like excessive play on the rear arms? I think it comes from the little metal pieces that capture the hinge pins into the susp holders... What do you think?

Last edited by Energyzer; 01-05-2013 at 05:54 PM.
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Old 01-05-2013, 06:39 PM   #3966
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It's on the setup sheet.
http://www.petitrc.com/setup/kyosho/...SetupSheet.pdf

Forward-back play at the suspension mount pins? Nope. Check that you're using the correct suspension mounts (either RF or RF2). Mine wiggles maybe 1/4 of a mm
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Old 01-05-2013, 07:22 PM   #3967
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Originally Posted by Energyzer View Post
Guys, which Rear Susp. holders are the narrow ones? Gun metal.

Edit: Do you have what it seems to me like excessive play on the rear arms? I think it comes from the little metal pieces that capture the hinge pins into the susp holders... What do you think?
I shimmed the play out. Nice and snug with no binding.
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Old 01-05-2013, 07:36 PM   #3968
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Quote:
Originally Posted by silvalis View Post


It's on the setup sheet.
http://www.petitrc.com/setup/kyosho/...SetupSheet.pdf

Forward-back play at the suspension mount pins? Nope. Check that you're using the correct suspension mounts (either RF or RF2). Mine wiggles maybe 1/4 of a mm
I'm using the RF which is the narrow one right? I think it's the only one that came on the kit.

I'll try to shim it. Mine wiggles almost 1mm, which is too much i think!
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Old 01-05-2013, 09:19 PM   #3969
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Originally Posted by cnelson3 View Post
steel?.. I have one on my sc-r and it's considerably more flexible than the one on my rb6. I don't often recommend against a company that makes stuff for kyosho's but in this one case, i would personally recommend spending the money and a good kyosho motor plate.
Anyone else care to weigh in on this? (st rc motor plates)? I was about to buy one, but maybe I guess I won't..
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Old 01-05-2013, 09:36 PM   #3970
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Originally Posted by fastestwon View Post
i have one on my car
I have one on my rb5. Work great mesh is quiet as well. Just got the machined for the 6 because it matches the gm parts.
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Old 01-05-2013, 09:52 PM   #3971
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Originally Posted by Energyzer View Post
I'm using the RF which is the narrow one right? I think it's the only one that came on the kit.

I'll try to shim it. Mine wiggles almost 1mm, which is too much i think!
kit comes with both narrow RF and wide RF2. If you followed the manual, you'd have put RF2 wide on.
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Old 01-05-2013, 11:32 PM   #3972
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I asked this question in the TLR 22 thread and no one had an answer, I am hoping maybe someone more familiar with Kyosho products will know.

Can I use Kyosho big bore shocks on a 22 buggy as a direct replacement?

Any help would be greatly appreciated..........
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Old 01-05-2013, 11:35 PM   #3973
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Quote:
Originally Posted by Medicinal Coma View Post
I asked this question in the TLR 22 thread and no one had an answer, I am hoping maybe someone more familiar with Kyosho products will know.

Can I use Kyosho big bore shocks on a 22 buggy as a direct replacement?

Any help would be greatly appreciated..........
Shocks? You should be able to. Maybe a couple spacer adjustments here and there... But Im preety sure if you can use these on a B4.1, you can use them on a 22
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Old 01-05-2013, 11:39 PM   #3974
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Just installed Stainless Steel Screws throughout the car. Not sure if it made it lighter, but it sure does look better lol




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Old 01-06-2013, 12:03 AM   #3975
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Originally Posted by BranVita View Post
Just installed Stainless Steel Screws throughout the car. Not sure if it made it lighter, but it sure does look better lol




The look is awesome. Good share.
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