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Kyosho Ultima RB6 & RB6.6 Car Thread

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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
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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 01-30-2014, 05:22 PM
  #9616  
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Originally Posted by mog ruith View Post
Istill ad a few laps yesterday, out of the box it handles well. Made some adjustments on the rear shocks and it drives much better. Cleared a tabletop twice till i managed to broke the rear hub. Are the hubs on the pro kit and rtr the same? Same material? And just an update the shocks are still holding well.
98% probability that they are not... Kyosho is great at doing things like that
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Old 01-30-2014, 07:47 PM
  #9617  
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Default RB6 hopup!

Well I got the new chassis in, upgraded to titanium screws, got the aluminum idler gear in and re-mounted the battery in the rear of the car with the help of the RT6 battery stop. Here are some pics! Now I am ready for a new servo and electronics. Debating on going back to my low profile servo or a new spektrum servo???
Attached Thumbnails Kyosho Ultima RB6 & RB6.6 Car Thread-photo-25-.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-photo-26-.jpg  
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Old 01-31-2014, 02:05 AM
  #9618  
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Johnn27 are you using the RB5 battery posts?
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Old 01-31-2014, 03:03 AM
  #9619  
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Originally Posted by whitrzac View Post
98% probability that they are not... Kyosho is great at doing things like that
I have checked both the readyset and pro kit manual it's the same part number. I am looking forward to get me the alu rear hub but was wondering are there any diff from one company who produces them, say yaiba/tresrey, rdrp over exotek or say kyosho hop ups
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Old 01-31-2014, 03:43 AM
  #9620  
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Smile battery posts

Originally Posted by KalEl63 View Post
Johnn27 are you using the RB5 battery posts?
Yes Rb5 Aluminum Battery posts and part of a diggity designs battery holder reversed, but the stock plastic battery holder reversed works also...

Last edited by Johnn27; 01-31-2014 at 03:54 AM.
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Old 01-31-2014, 09:03 AM
  #9621  
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Originally Posted by mog ruith View Post
I have checked both the readyset and pro kit manual it's the same part number.
Yes they are the same part number. However, when you take them out of the package it might have a different feel and look (color) to them.
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Old 01-31-2014, 12:32 PM
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For those who run clay tires, MC or gold, what tire compound do you like?
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Old 01-31-2014, 12:54 PM
  #9623  
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Originally Posted by mog ruith View Post
I have checked both the readyset and pro kit manual it's the same part number. I am looking forward to get me the alu rear hub but was wondering are there any diff from one company who produces them, say yaiba/tresrey, rdrp over exotek or say kyosho hop ups
Same part number. Same shape. Different plastic.

They kyosho one will be the only one that adds value to the car. Maybe the exotek....
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Old 01-31-2014, 01:28 PM
  #9624  
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I run at topgearraceway. Joe pillars and andy dibrinos home track and we have always loved the gold compound by far for clay type dirt.
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Old 01-31-2014, 01:31 PM
  #9625  
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Originally Posted by MikeXray View Post
For those who run clay tires, MC or gold, what tire compound do you like?
I run on indoor wet/damp clay and prefer MC.
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Old 01-31-2014, 02:42 PM
  #9626  
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Is there a way to put the battery all the way to ther rear in MM configuration without the RB6T battery brace?
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Old 01-31-2014, 03:38 PM
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Originally Posted by Kraig View Post
Yes they are the same part number. However, when you take them out of the package it might have a different feel and look (color) to them.
Originally Posted by whitrzac View Post
Same part number. Same shape. Different plastic.

They kyosho one will be the only one that adds value to the car. Maybe the exotek....
Different plastic? Although same part number huh... thanks guys. So if i get the stock part replacement the next time i will be getting me the pro kit part? Different plastic? Only in the readyset are parts kind of soft?
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Old 01-31-2014, 03:46 PM
  #9628  
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Originally Posted by offroad dude View Post
Is there a way to put the battery all the way to ther rear in MM configuration without the RB6T battery brace?
You can alter the rear brace a bit but it stretches out and is probably 15mm further forward than the new part.
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Old 01-31-2014, 03:56 PM
  #9629  
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Originally Posted by mog ruith View Post
I have checked both the readyset and pro kit manual it's the same part number. I am looking forward to get me the alu rear hub but was wondering are there any diff from one company who produces them, say yaiba/tresrey, rdrp over exotek or say kyosho hop ups
If it's any consolation the plastic hubs on my RB6 kit broke at the first race meeting. I hardly break anything on cars. I think the kit plastic hubs are weak, others agree, so I replaced with the Kyosho Alu V2 hubs.

It's something you would replace whether Kit RB6 or RTR.
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Old 01-31-2014, 04:53 PM
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Originally Posted by 1 View Post
If it's any consolation the plastic hubs on my RB6 kit broke at the first race meeting. I hardly break anything on cars. I think the kit plastic hubs are weak, others agree, so I replaced with the Kyosho Alu V2 hubs.

It's something you would replace whether Kit RB6 or RTR.
That seems strange to me. I have been running my original plastic rear hubs for over a year now and have yet to break one. In fact the only thing I have broke on this car (which I have broke several now)is the rf plastic hangers.
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