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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
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 02-17-2014, 02:24 AM
  #9871  
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Hi all

Not sure if this had been asked before, but what parts do I need to convert the front hexes to AE bearing weheels, as all my 2wd are on the bearing wheels, so made more sense for me to share the front wheels.


Thanks
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Old 02-17-2014, 05:42 AM
  #9872  
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Originally Posted by viktozzz
Hi all

Not sure if this had been asked before, but what parts do I need to convert the front hexes to AE bearing weheels, as all my 2wd are on the bearing wheels, so made more sense for me to share the front wheels.


Thanks
Kyosho is metric and AE is standard. It will be hard to make one fit but nothing is impossible. That is one of the hurdles that you have to clear.
Last edited by Kraig; 02-17-2014 at 05:54 AM.
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Old 02-17-2014, 06:37 AM
  #9873  
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Originally Posted by viktozzz
Hi all

Not sure if this had been asked before, but what parts do I need to convert the front hexes to AE bearing weheels, as all my 2wd are on the bearing wheels, so made more sense for me to share the front wheels.


Thanks
Try the Bmax2 MR front axle. I remember for it to use AE front bearing wheels all I needed was a different sized bearing
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Old 02-17-2014, 08:38 AM
  #9874  
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Had to tune for some "unique" conditions at motorama, really had to lighten up the shock package to handle the insane bumps, ran mid motor half the event, then switched to my RM car trying to put some safe runs in. Car was good, but I couldn't complete a run without crashes..
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Old 02-17-2014, 08:53 AM
  #9875  
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Will the AKA pre-mounts fit the RB6?

http://www.amainhobbies.com/product_...ounted-White-2
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Old 02-17-2014, 09:57 AM
  #9876  
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Originally Posted by TIME MACHINE
Will the AKA pre-mounts fit the RB6?

http://www.amainhobbies.com/product_...ounted-White-2
Yes, I ran evo typo clays this weekend, the fitment is the same as their old wheels, the rears need a thin wheel nut or you can get the avid long axle conversion.
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Old 02-17-2014, 04:02 PM
  #9877  
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thanks for all replies...

have always wanted a RB6 since i saw it in action more than a year ago... and run it in MM config..

would try if any other front axle fits in and post back here with results to share with all, as i believe that i might not be the only one with all the bearing wheels for 2wd.
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Old 02-17-2014, 04:47 PM
  #9878  
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Originally Posted by zzztech
Try the Bmax2 MR front axle. I remember for it to use AE front bearing wheels all I needed was a different sized bearing

i think yokomo actually makes an axle for AE wheels, so you can same bearing. your other option is a tresrey ae axle meant for the durango dex210. if you can get that to fit.
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Old 02-17-2014, 07:45 PM
  #9879  
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Anyone have trouble with the servo horn hitting the front clip on the RB6? Jus got one and trying to install my 1258tg but the horn keeps hitting. Tried two different horns and with and without spacers.
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Old 02-17-2014, 08:00 PM
  #9880  
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Originally Posted by CaseyD
Anyone have trouble with the servo horn hitting the front clip on the RB6? Jus got one and trying to install my 1258tg but the horn keeps hitting. Tried two different horns and with and without spacers.
Yes. I found it's KO servos that will fit. Others hit or miss (Sanwa BRX will not fit)
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Old 02-17-2014, 08:32 PM
  #9881  
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Tried gearing my stock buggy 33/72 same as my B4 but the gear cover is hitting the pinion. Wondering if I need a 69 spur with a 32? Or what gear can I use that will work?
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Old 02-17-2014, 09:45 PM
  #9882  
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Originally Posted by chevmaro
Tried gearing my stock buggy 33/72 same as my B4 but the gear cover is hitting the pinion. Wondering if I need a 69 spur with a 32? Or what gear can I use that will work?
losi 70 with losi slipper pads
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Old 02-17-2014, 10:08 PM
  #9883  
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You can dremal the gear cover to fit around the 33 and 34 tooth pinions..
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Old 02-18-2014, 04:17 AM
  #9884  
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Originally Posted by gelshocker
Yes. I found it's KO servos that will fit. Others hit or miss (Sanwa BRX will not fit)
hitec 7955 fits perfect too.
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Old 02-18-2014, 04:29 AM
  #9885  
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Originally Posted by glenng
i think yokomo actually makes an axle for AE wheels, so you can same bearing. your other option is a tresrey ae axle meant for the durango dex210. if you can get that to fit.
Yes u r quite right!

http://www.rc-race-and-drift-japan.c...oducts_id=3591
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