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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 10-01-2014, 01:34 PM   #10876
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People will argue that shorty back is more weight, but I weighed my electronics setup vs the space difference where the shorty back vs short against the ESC, and its within a few gms of each other.
Its the extra long motor wires with esc in front that adds a bit of overall weight which is why I prefer. Ballast can be adjusted easier then.
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Old 10-03-2014, 10:31 AM   #10877
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I got the waterfall opened out and esc back next to the motor with a rudebits shorty tray n full size servo cars great everywhere
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Old 10-03-2014, 09:55 PM   #10878
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I got the waterfall opened out and esc back next to the motor with a rudebits shorty tray n full size servo cars great everywhere

Can you post a picture of your car with the tray installed? Can the tray be switched front to back and put the lipo next to the motor?
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Old 10-04-2014, 06:52 AM   #10879
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I'm too dim to get the pic up i's only using phone pm me an email tag an I'll send one or you can see the trey in rudebits.co.uk shop
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Old 10-04-2014, 07:52 AM   #10880
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I tried that too, it drives like a rear motor car on throttle but swings around off power. If its loose ITS REAL LOOSE. If its locked in it doesnt turn.

Here is what I did to hold the battery down.
Did you use a tray to sit the saddles or have you machined the side pod to allow the Saddles to sit lower in the chassis ??
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Old 10-05-2014, 12:39 AM   #10881
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can someone tell me if the 521-1 rear arms are a different length than the 521 arms plz? thnx
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Old 10-05-2014, 05:59 AM   #10882
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Need some opinions on the mip pucks system. Looking at getting the system for 17.5 stock racing. Is it worth the money??
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Old 10-08-2014, 05:24 PM   #10883
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here are the pics of a jconcepts c4.2 finnisher body on my 6. fits well and i felt like it had more rear traction than the rb6 specific finnisher body did.

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Kyosho Ultima RB6 & RB6.6 Car Thread-img_0017%5B1%5D.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-img_0019%5B1%5D.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-img_0018%5B1%5D.jpg  
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Old 10-08-2014, 06:26 PM   #10884
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Originally Posted by ColbyRichards View Post
here are the pics of a jconcepts c4.2 finnisher body on my 6. fits well and i felt like it had more rear traction than the rb6 specific finnisher body did.

normal view for top? or side
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Old 10-08-2014, 07:41 PM   #10885
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Originally Posted by slow coach View Post
Did you use a tray to sit the saddles or have you machined the side pod to allow the Saddles to sit lower in the chassis ??

I notched the side guards with a dremel and put foam on the chassis under where the 2 saddles meet. Raised it up a touch. It still was lower in the middle but not by much. I did it like that so i could also run a shorty sideways if ai wanted. Wasnt a fan of that either, drove like a b5m, either had traction and no steering or steering and no traction. For me the best is cody king style slid up against the motor with the small foam between the motor and battery and the speedo in front of the battery.
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Old 10-08-2014, 08:32 PM   #10886
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normal view for top? or side
DOH! Yeah I will snap one tomorrow. and try to post from my phone.

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Old 10-09-2014, 02:37 AM   #10887
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Does anyone know what body it was that David Ronnfalk used on his RB6 at the recent Euros in Trelleborg? And would it also fit mid as he used ur in rear motor config.
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Old 10-09-2014, 07:37 AM   #10888
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Does anyone know what body it was that David Ronnfalk used on his RB6 at the recent Euros in Trelleborg? And would it also fit mid as he used ur in rear motor config.

Just found out by myself, it was the muchmore Wonder Body, both for mid and rear Motor config, part number XBG001.
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Old 10-09-2014, 07:50 AM   #10889
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anyone tried the muzzle body? sold as being for mid or rear.
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Old 10-09-2014, 02:34 PM   #10890
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Anyone willing to sell a good condition RB6 can you PM me?

Willing to pay good money for a good RB6.
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