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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 12-31-2012, 04:43 PM
  #3751  
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Originally Posted by eper
those arms give up rear traction the stock arms have more imo. where i race people are running the 6 arms on the 5. its all preference
hmm, I hadn't heard of that and I'm holding onto the 5 for a bit longer. thanks for the tip
ps I have a zx5fs2 in the f/s section
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Old 12-31-2012, 04:51 PM
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I was happy with my 5 as well until I tried my 6. Was originally thinking to convert the 5 to a stock motor car but the 6 changed that .
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Old 12-31-2012, 04:55 PM
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Originally Posted by aloksatoor
I was happy with my 5 as well until I tried my 6. Was originally thinking to convert the 5 to a stock motor car but the 6 changed that .
+1
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Old 12-31-2012, 05:42 PM
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my front tires may actually be past their prime. im gonna mount up some freshies ad see where i'm at. why am i getting the zx5 for sale notice? lol.. i just got a new fs2sp. should be in a week unless my girlfreind bails out on her kindness
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Old 12-31-2012, 06:02 PM
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Originally Posted by eper
my front tires may actually be past their prime. im gonna mount up some freshies ad see where i'm at. why am i getting the zx5 for sale notice? lol.. i just got a new fs2sp. should be in a week unless my girlfreind bails out on her kindness
I bet they push more :P

Try JC Golds worn down.
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Old 12-31-2012, 06:43 PM
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Has anybody tried the sweep closed cell inserts yet my local hobby shop got some in was thinking about giving them a shot.....
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Old 12-31-2012, 07:27 PM
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Please do and let us know!!
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Old 12-31-2012, 08:37 PM
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If I got to run more than one one hour session a week I too would be all over the RB6.
But I got a new XB4 instead : )
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Old 01-01-2013, 05:24 AM
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i dont run concept tires they are very inconsistent to me. besides at the moment i have a partial sponsorship with pro line and live by there tires they are the best for me
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Old 01-01-2013, 11:32 AM
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so ive heard that the rb5 sp2 arms free up the car when running them on the rb6, anyone have any input on this? Just want to know what im getting myself into next time at the track.
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Old 01-01-2013, 11:33 AM
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Originally Posted by racer x 1
so ive heard that the rb5 sp2 arms free up the car when running them on the rb6, anyone have any input on this? Just want to know what im getting myself into next time at the track.
Interesting
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Old 01-01-2013, 11:37 AM
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Originally Posted by eper
i dont run concept tires they are very inconsistent to me. besides at the moment i have a partial sponsorship with pro line and live by there tires they are the best for me
Inconsistent?.....
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Old 01-01-2013, 11:56 AM
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Originally Posted by racer x 1
so ive heard that the rb5 sp2 arms free up the car when running them on the rb6, anyone have any input on this? Just want to know what im getting myself into next time at the track.
Matt,

They are not necessary. I run a stock car with no alum. Kyosho parts at all and its dialed.
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Old 01-01-2013, 02:46 PM
  #3764  
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well got to run my car for the first time at the track. Car was pretty good. Def gave it a durablity test and the car held up perfect. I see what everyone is saying about it being aggressive, But I like it. Just need a tick more side bite and a little more foward traction. maybe tame the steering just a tad as well. Didnt look but does the rear toe block have markings on what degree toe it is? I have no idea what I have now but if I had to guess it bet its 3 degress. I wanna try 3.5. Does the 3.5 block come with the kit?
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Old 01-01-2013, 02:51 PM
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you need to use the different toe hubs to get different toe - can't be changed with blocks.
UMW516-0, 05 and 1 are the aluminium versions. UMW516GM- is the gunmetal colour.

I think there are plastic hubs too, but I don't know the P/n

STRC makes these http://www.teamstrc.com/index.php?ro...product_id=707.
The Kyosho ones have a large outer bearing, these ones use the regular bearings like the plastic hubs.
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