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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 11-21-2015, 10:30 PM   #12766
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The brace is more expensive directly from the company making them....
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Old 11-22-2015, 07:03 AM   #12767
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Originally Posted by whitrzac View Post
The brace is more expensive directly from the company making them....
Yes? That's pretty typical for manufactures that don't necessary want or have the ability to deal with the logistics of bulk customers directly and prefer bulk sales via a partner. Same with nearly every tire manufacture, chassis manufacture, etc, etc.
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Old 11-23-2015, 07:23 AM   #12768
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Has anyone tried the JTP Rear and Front Carbon towers for the RB6 if so what have you guys noticed vs the stock plastic towers
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Old 11-23-2015, 09:27 AM   #12769
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Hey all. Will be joining the Kyosho group. Was running TLR stuff and selling my 2wd and 4wd now.

Just curious, are the 22 rear wheels the same offset? 22-4 fronts are they the same as kyosho?
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Old 11-23-2015, 11:10 AM   #12770
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Originally Posted by TheRcworld101 View Post
Has anyone tried the JTP Rear and Front Carbon towers for the RB6 if so what have you guys noticed vs the stock plastic towers

I had the front one. I never had a chance to do a good comparison because I broke* it the first night out.




* The hit it took would have broken any tower <5mm thick.
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Old 11-23-2015, 11:55 AM   #12771
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I havent done back to back tests but lets say its works good enough to were I dont want to take it off.
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Old 11-23-2015, 02:16 PM   #12772
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Quote:
Originally Posted by David Alberico View Post
Hey all. Will be joining the Kyosho group. Was running TLR stuff and selling my 2wd and 4wd now.

Just curious, are the 22 rear wheels the same offset? 22-4 fronts are they the same as kyosho?
Well, for the 2wd if you look at AKA's site they list the same rear wheels for all 3 cars, 22's, RB6, B5. If you look at the fronts the 22 is on its own.

Now for JConcepts, they sell a separate rear wheel for the 22's but the RB6 and B5 are the same.

Each manufacturer sells different 4wd front wheels for each car.
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Old 11-23-2015, 02:23 PM   #12773
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I've often wondered about wheel backspace. I'm going to measure a few.

And why long and short rod ends!?
I keep bending the long ones. Now when I say bent I mean after a month I'll notice one is tweaked and forget to swap it out. Set the camber and no big deal. Always the long one though.....
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Old 11-23-2015, 02:40 PM   #12774
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Quote:
Originally Posted by madweazl View Post
Im starting to wonder if I got the original and not the 2015. Does your box match this one?

Quote:
Originally Posted by orangutanracer View Post
Looks like you got an original. I believe the new model is Part Number 34301B
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Originally Posted by K_King View Post
Basically if Kyosho made a "B" part to something it's now included. Off the top of my head it's the following:

Front Aluminum Brace (Supposed to be stronger)
Rear Springs (Gold vs Red)
Chassis (only has new holes nothing else)
Rear Arms (Has 2 new inside holes)
Manual (Has PNs listed when building now)
Ballcups (Hard version now)
Rear bulkhead (has thicker section by screws and a sway bar mount)
Wing (3.0 vs 2.0 which has 2 different wings, curved and straight)

FYI, I just bought the RB6 from Amain and has the 34301 on the box, but everything inside seems to be 2015 (including manual, gold spring, and arms with three holes). So not sure that 34301b is correct.
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Old 11-23-2015, 03:20 PM   #12775
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Has anyone noticed that kyosho's "red" springs are looking more and more Pink as the years go by?

The 1st set of red springs I bought were dark red, marked on both ends, etc.

The set of red rear springs I just bought I had to compare directly between red/pink to verify that they were red. Results were inconclusive.



Time to go buy some nail pollish
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Old 11-23-2015, 03:32 PM   #12776
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Interesting....

Last edited by oPAULo; 11-23-2015 at 03:47 PM.
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Old 11-23-2015, 08:01 PM   #12777
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What am I looking at? Buggy wheels are mostly the same size and wight?
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Old 11-23-2015, 09:49 PM   #12778
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Need some help...... have the 705 and 707 suspension hangers for my mm. And the B insert in for the front and A insert in the rear.

But I have all kinds of side to side play... what is the issue here? Is there a bushing kit I need for the inserts? The pins fit snug in the original plastic holders.
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Old 11-23-2015, 10:05 PM   #12779
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Originally Posted by robbie_gtc View Post
Need some help...... have the 705 and 707 suspension hangers for my mm. And the B insert in for the front and A insert in the rear.

But I have all kinds of side to side play... what is the issue here? Is there a bushing kit I need for the inserts? The pins fit snug in the original plastic holders.
Man, nevermind. I am a dummy and just figured out I need to take the bushings out of the plastic arms and put them in the inserts.
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Old 11-24-2015, 02:49 AM   #12780
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What am I looking at? Buggy wheels are mostly the same size and wight?
All pretty close on backspace and width.
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