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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 04-12-2015, 07:52 PM   #11956
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I took the buggy out saturday to my LHS's track for testing and it was very good. The track was not very good since they haven't attended to it since last year but it was still drivable. The only thing I had to adjust on the buggy was the slipper cause it was a little loose on the dirt track but other then that I really like the way the buggy handles and the weight is just at that sweet spot where the buggy feels good on the track, balance is very good and is very predictable.
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Old 04-12-2015, 08:22 PM   #11957
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Quote:
Originally Posted by MikaR View Post
Hi guys, do you know if pro-line rear premounted hole shot tires 8206-15 fit rb6 ? By fitting I mean about the same dimensions as with Kyosho wheels. Thanks in advance.

http://www.prolineracing.com/tires/h...res-mounted-w/
When I click on the link to the wheel for that tire it takes me to the 2736-04. Even though it doesn't say RB6 it does say RB5 so yes it should fit.
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Old 04-12-2015, 08:23 PM   #11958
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Originally Posted by mdwaeracer View Post
What do u use to get the inside Ball stud in the rear in and out. The upper shock mount is right over the ball stud
Yeah that is a pain to change. You pretty much have to remove some things in order to make that change.
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Old 04-12-2015, 08:31 PM   #11959
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Quote:
Originally Posted by M03Racer View Post
I took the buggy out saturday to my LHS's track for testing and it was very good. The track was not very good since they haven't attended to it since last year but it was still drivable. The only thing I had to adjust on the buggy was the slipper cause it was a little loose on the dirt track but other then that I really like the way the buggy handles and the weight is just at that sweet spot where the buggy feels good on the track, balance is very good and is very predictable.
My 1st time out today as well and this RB6 is bad arse! I run at OCRC though, a well taken care of high bite track! I just installed a gear diff and it ran great! I have yet to try a well set up ball diff though... Off to buy a SC6 short course!
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Old 04-12-2015, 11:28 PM   #11960
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Quote:
Originally Posted by Kraig View Post
When I click on the link to the wheel for that tire it takes me to the 2736-04. Even though it doesn't say RB6 it does say RB5 so yes it should fit.
Thanks a lot!
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Old 04-14-2015, 08:35 PM   #11961
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What are the ride height and shock length settings?
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Old 04-14-2015, 08:49 PM   #11962
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I really wanna try one of these even though I love my serpent buggies. I may have a sickness.
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Old 04-14-2015, 08:58 PM   #11963
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Default kyosho rb6?

I've been looking at a rb6 for about two months now. My local track just had a pretty big jconcepts race this past week. I currently have a b5m I like it before I put all these hopups on it. Have anybody have or had both what's the difference?
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Old 04-14-2015, 11:12 PM   #11964
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Quote:
Originally Posted by Michael Deeger View Post
What are the ride height and shock length settings?
This page has nearly all the information you will ever need:
http://www.petitrc.com/setup/kyosho/...UltimaRB6.html
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Old 04-15-2015, 04:35 AM   #11965
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Quote:
Originally Posted by legg.j View Post
I've been looking at a rb6 for about two months now. My local track just had a pretty big jconcepts race this past week. I currently have a b5m I like it before I put all these hopups on it. Have anybody have or had both what's the difference?
Similar performance, both drive well. The fit and finish on the Kyosho is just better all around. After the initial sticker shock, the additional piece prices are comparable to the AE car. Look at the support for parts and the local drivers for setup tips in your area. The clubhouse has got some fast guys and quite a few kyosho cars also.


Is it better than the B5???? I like it.
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Old 04-15-2015, 05:01 AM   #11966
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It is just a matter of preference. Both cars have their pros and cons. But Dan-o is right The Clubhouse has some fast guys who are always willing to help. Bill Hall (owner) will answer just about answer any setup question you got. There are also alot of guys that drive the B5M. Al Horne is usually up there on Wed. you can also pick his brain a little too. Its an awesome facility and the people are great.
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Old 04-15-2015, 05:30 AM   #11967
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How is everyone holding in there shortly sideways and will this give more grip outside.
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Old 04-15-2015, 07:51 AM   #11968
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One of the Kyosho team drivers at OCRC actually switched back from a sideways pack, said he wasn't a fan!

As for the RB6 vs B5M, I simply prefer the RB because everybody + momma at my track runs the B5 & I typically never follow the herd...
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Old 04-15-2015, 01:49 PM   #11969
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Originally Posted by legg.j View Post
I've been looking at a rb6 for about two months now. My local track just had a pretty big jconcepts race this past week. I currently have a b5m I like it before I put all these hopups on it. Have anybody have or had both what's the difference?
Having had thenB5M and RB6 at the same time here is what I find. The RB6 has more rip, is more stable, lighter, and can be pushed ten times as hard as the B5M due to superior suspension system. The B5M is a good car, but nothing special compared to the RB6.
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Old 04-26-2015, 09:26 PM   #11970
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Originally Posted by SoCalMX View Post
My 1st time out today as well and this RB6 is bad arse! I run at OCRC though, a well taken care of high bite track! I just installed a gear diff and it ran great! I have yet to try a well set up ball diff though... Off to buy a SC6 short course!
what weight diff. fluid did you used in the gear diff?I just bought a 7.5 and wondering where to start with .3k 5k 7k?

Last edited by nitro2be; 04-27-2015 at 12:19 PM.
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