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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 05-25-2013, 06:35 AM   #6916
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Given that the JConcepts wheels create a narrower width in the rear. Would using kyoum510-02 (3 line axels) compensate and make the rear width "normal"?
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Old 05-25-2013, 08:38 AM   #6917
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Quote:
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Hi,

has anyone tried the AVID TRIAD slipper in mid motor mod on astro/carpet ? What are your experiences ? If not what do the dirt racers say ? Worth the money ?

Thanks.
hey Den, It's on my list of stuff to get. I know Freddy was running it last weekend on his car (mid motor outside on the dirt ) and he said it worked very well.
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Old 05-25-2013, 09:23 AM   #6918
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I'm going to try the mid motor setup. Can I still use my wide aluminum hangers
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Old 05-25-2013, 01:10 PM   #6919
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Quote:
Originally Posted by Bob Barry View Post
hey Den, It's on my list of stuff to get. I know Freddy was running it last weekend on his car (mid motor outside on the dirt ) and he said it worked very well.
Anyone who allready did try it? Aspecially ib mid motor astro/carpet? Or in geberal?
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Old 05-25-2013, 05:33 PM   #6920
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Originally Posted by Speedychris22 View Post
I'm going to try the mid motor setup. Can I still use my wide aluminum hangers
mid motor uses its own hangers but they are wide
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Old 05-25-2013, 06:30 PM   #6921
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Quote:
Originally Posted by eper View Post
mid motor uses its own hangers but they are wide
Is there any aluminum hangers for a mid motor setup
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Old 05-25-2013, 10:04 PM   #6922
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This is for mid motor:

http://www.ebay.com/itm/Yaiba-Racing...71045543608%26
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Old 05-25-2013, 10:05 PM   #6923
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I'm running the stock setup with rear motor in a tight indoor med traction track. Looking for corner exit traction. Should I switch to mid motor or stay in rear motor. Also what can I do to improve traction out of the corner.
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Old 05-26-2013, 01:11 AM   #6924
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if you're specifically looking for corner exit traction, mid motor is the wrong way to go.
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Old 05-26-2013, 02:32 AM   #6925
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Originally Posted by silvalis View Post
if you're specifically looking for corner exit traction, mid motor is the wrong way to go.
Every one seems to forget about the pendulum effect that rear motor cars have. I loose more rear bite from this than I gain from the weight transfer.
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Old 05-26-2013, 02:52 AM   #6926
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move the rear hubs forward.. change esc settings..
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Old 05-26-2013, 05:55 AM   #6927
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I want narrow hangers for mid motor, exotek, you listening
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Old 05-26-2013, 10:12 AM   #6928
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Ok guys I just picked a kyosho RB6 and purchase most of the YAIBA racing hop-ups suspension hangers, steering plate and bell crank I think it's a
Must upgrade parts to have.. Just wondering anything else I need?
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Old 05-26-2013, 10:16 AM   #6929
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Quote:
Originally Posted by Speedychris22 View Post
Is there any aluminum hangers for a mid motor setup
this what your looking for?

http://www.tresrey-usa.com/yaiba-rac...ension-holder/
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Old 05-27-2013, 02:19 AM   #6930
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Rear aluminium hubs?

If you're bored, go to the first post and start buying bling bits - Carbon bits, alu bulkheads etc. Not necessary, but... bling...
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