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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 10-15-2012, 01:57 AM   #1576
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mm yeah. If your slipper was tight, were you wheelie-ing easily? The GC is indoor clay yeah?

You said you have run the motor previously, but how about the esc? I know that some (ie, this viper I have) are ridiculously slow if you forget to change profiles and leave it in the one labelled "17.5 spec". heh.
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Old 10-15-2012, 02:01 AM   #1577
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Originally Posted by v1r killer View Post
I reset my speedy while at track invade that was it, I will pull my slipper down I think and check it , funny thing we had 2 x new buggies each had the same prob on both. I have new pads coming so I might try the new pads and see if thy makes diff. This is my first slipper I have had issues with. Do the pads need to be ruffed up before installing for a bit more grip??
Nah. Run em as is, unless you messed up the initial slipper setting and turned them glassy or so. Even then, for regular use I dont think you would really ever have to change slipper pads.

If your slippers went glassy and it was slipping like crazy, you should be able to hear it as it goes past the driver stand.

One thing I noticed - it's a bit harder to do a wheelie on this car than it was on my stock RB5WC. I suspect it's due to the weight distro and the shorter wheelbase.
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Old 10-15-2012, 02:08 AM   #1578
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Just came across this video, its hard to see but the car looks pretty good.


http://www.youtube.com/watch?v=7nOuxXJ9Sqw
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Old 10-15-2012, 02:13 AM   #1579
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Yes all clay, it is the double single that was easy with the 4.1 is now three singles and I am now loosing time, I can hear the slipper gripping and not buzzing up. It is no where near lifting the front wheels. Diff is tight , I don't normally ask for help but I am a bit lost with this one. I thought my gearing might be the problem but I will re check my slipper again, thanks for the help
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Old 10-15-2012, 02:24 AM   #1580
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Will both of these work for .5 rear hub carrier upgrade?

STRC .5

Kyosho .5
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Old 10-15-2012, 02:31 AM   #1581
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Quote:
Originally Posted by gas1313 View Post
What part in the steering keeps breaking! Just wanting to know before I run! Thanks if possible part # and does the gear diff fit this car.
Yes, the SC-R gear diff will fit no probs as the gearbox is internally the same.
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Old 10-15-2012, 02:52 AM   #1582
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Quote:
Originally Posted by toast. View Post
Will both of these work for .5 rear hub carrier upgrade?

STRC .5

Kyosho .5
they are both good but IMO the kyosho is the choice may be 2x the price but you can get the bearings out with no problems.
if you choose the strc version i would suggest smearing the outside bearing race with black grease so you get the bearing out easier
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Old 10-15-2012, 03:34 AM   #1583
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the Kyosho also uses a larger outer bearing, which is apparently good.
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Old 10-15-2012, 03:34 AM   #1584
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Does the rb6 come in individual parts or is on that plastic tree thing? And if it on the tree do you have to dremel off the little leftover bits?
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Old 10-15-2012, 04:08 AM   #1585
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Quote:
Originally Posted by v1r killer View Post
Yes all clay, it is the double single that was easy with the 4.1 is now three singles and I am now loosing time, I can hear the slipper gripping and not buzzing up. It is no where near lifting the front wheels. Diff is tight , I don't normally ask for help but I am a bit lost with this one. I thought my gearing might be the problem but I will re check my slipper again, thanks for the help
Double check your diff. make sure its installed correctly and on the right side. Male sure the case isn't too tight. The transmission should be free. it's easily over tightened
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Old 10-15-2012, 04:20 AM   #1586
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Quote:
Originally Posted by OMG23RC View Post
Does the rb6 come in individual parts or is on that plastic tree thing? And if it on the tree do you have to dremel off the little leftover bits?
Do yourself a favor and get the Tamiya side cutter TAM74035
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Old 10-15-2012, 04:55 AM   #1587
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So it does?
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Old 10-15-2012, 05:45 AM   #1588
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Yes it does, but there usually isn't much in the way of flashing. An Xacto or small file is all you need (and that's if you're anal retentive).
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Old 10-15-2012, 06:07 AM   #1589
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id start by recalibrating your esc and a new sensor wire. also may want to check the capacitors on the esc
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Old 10-15-2012, 08:08 AM   #1590
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Quote:
Originally Posted by gas1313 View Post
What part in the steering keeps breaking! Just wanting to know before I run! Thanks if possible part # and does the gear diff fit this car.
yes the gear diff fits.. its the same ole transmission
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