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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 12-07-2012, 07:26 AM   #3196
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Originally Posted by x7tristan View Post
what exactly are the differences between the two sets of blocks? are the changing the track width of the car?
Yes that is correct.
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Old 12-07-2012, 07:36 AM   #3197
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Quote:
Originally Posted by MrHistory View Post
When using aluminum rear hubs in RB5 rear arms, do I use a grub screw in the aluminum hub to secure to arm pin?
Always use the set screws. You don't want the hing pin rubbing/spinning in the aluminum hole, as alu on alu will wear quickly, and you will ruin the alu hubs. The set screw makes sure that all the hing pin rotation happens in the holes of the arm, instead of the hole in the hub.
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Old 12-07-2012, 08:12 AM   #3198
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Originally Posted by Cpt.America View Post
If you are running the aluminum rear suspension hangers... you are set. Every other piece on the car is only going to break if you do something you really shouldn't of done. Nothing else on the car is broken "over easily". The one piece you may want to toss in your bag anyway, is the rear upper bulkhead.

http://www.amainhobbies.com/product_...Upper-Bulkhead

Now, if you don't have access to parts at your track, I would also toss in a full set of arms, caster blocks, and front shock tower.

Sorry for being a noob but what is a rear hanger. Can you send me a link on amain?
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Old 12-07-2012, 08:52 AM   #3199
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Originally Posted by pekow91 View Post
Sorry for being a noob but what is a rear hanger. Can you send me a link on amain?
they are the hinge pin blocks.....I posted a link on the previous page to the gunmetal versions.
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Old 12-07-2012, 08:57 AM   #3200
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Originally Posted by pekow91 View Post
Sorry for being a noob but what is a rear hanger. Can you send me a link on amain?
hangers / blocks / or suspension holders
all the same part just different terms which gets uber confusing, welcome to K cars, take lots of notes
part numbers a few posts back
Quote:
Originally Posted by Trevor Williams
gunmetal narrow blocks:
kyoumw511
kyoumw512
gunmetal wide blocks:
kyoumw514
kyoumw515
Heres a search on one
http://www.amainhobbies.com/advanced...umw512&x=0&y=0
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Old 12-07-2012, 09:18 AM   #3201
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Originally Posted by pekow91 View Post
Sorry for being a noob but what is a rear hanger. Can you send me a link on amain?
It's ok that you have noob questions, we have all had them... but at least meet us half way and read a little bit. The part numbers are even posted on post#1 of this page (in a quote).

Suspension hangers are the rear pieces that hold the inner hingpin for the rear arms.
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Old 12-07-2012, 09:35 AM   #3202
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Originally Posted by Cpt.America View Post
It's ok that you have noob questions, we have all had them... but at least meet us half way and read a little bit. The part numbers are even posted on post#1 of this page (in a quote).

Suspension hangers are the rear pieces that hold the inner hingpin for the rear arms.
You are right and I usually try to read what has already been posted. The post above refereed to them as suspension blocks and I thought the hangers were something different. Anyway, I got it now and thanks for the info.
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Old 12-07-2012, 09:39 AM   #3203
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You are right and I usually try to read what has already been posted. The post above refereed to them as suspension blocks and I thought the hangers were something different. Anyway, I got it now and thanks for the info.
aah i see, not a problem, and sorry for the confusion. (never hesitate to ask a question, that's what we are here for!) Kyosho calls them "suspension holders". They can also be called "pivot blocks" too.
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Old 12-07-2012, 05:53 PM   #3204
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Thanks for the aluminum hub answer...

Im new to buggy and wondering if its the norm to run a chassis protector on the bottom of the car. I dont really want to be that fussy but I have read the whole thread and about the chassis problem. Just curious what the serious guys are doing and if the car works better or lasts longer with film.

thanks
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Old 12-07-2012, 06:47 PM   #3205
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Chassis problem was only on a couple of the RB6.
I dont think a 'protector' would keep it from happening if you had one of the few that had that problem.
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Old 12-07-2012, 06:50 PM   #3206
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My chassis has been fine so far. Pretty sure mine was from the second batch of kits shipped over.
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Old 12-07-2012, 07:10 PM   #3207
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Hey guys I got the Orion R10, is it a good fit or do I need to change out to thinner gauge wires, other mods? Thanks,
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Old 12-07-2012, 07:34 PM   #3208
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Hey guys I got the Orion R10, is it a good fit or do I need to change out to thinner gauge wires, other mods? Thanks,
Mine fits fine with no mods. I will be changing to more flexible wires though to allow for a better fit.
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Old 12-07-2012, 07:36 PM   #3209
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Originally Posted by MrHistory View Post
Thanks for the aluminum hub answer...

Im new to buggy and wondering if its the norm to run a chassis protector on the bottom of the car. I dont really want to be that fussy but I have read the whole thread and about the chassis problem. Just curious what the serious guys are doing and if the car works better or lasts longer with film.

thanks
It's not really an issue at all. I've run another half dozen meets and it's not like the back is about to fall off.
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Old 12-07-2012, 09:04 PM   #3210
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I noticed several of the bearing for the transmission have smashed in bearing shields. I switched out one from the MM bag, but one of the large diff bearings is pushed down into the housing and does not move as freely as the other one I have.

Should I remove the damaged shield and turn that side of the bearing to the inside of the transmission case?
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