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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 09-12-2013, 08:52 AM   #8146
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Try the paint thread, those guys know their stuff.
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Old 09-12-2013, 10:25 AM   #8147
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New paint
Very nick paint scheme. Who does your painting? If you can would you PM me their info?
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Old 09-12-2013, 10:42 AM   #8148
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what's a good gearing for 13.5t d3.5 with HT rotor? Medium size track.

thx
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Old 09-12-2013, 10:58 AM   #8149
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Originally Posted by moto44 View Post
Getting ready for 1/10 indoor racing this year I have been running a b4 and b4.1 the last couple of years. Was looking at the RB6 is it worth the extra money or better to get a b4.2? Thanks
I have both and would say for lower traction facilities I like my B4.2 better....However, if your track has enough traction so that the car bicycles and traction rolls then I'd say go RB6!
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Old 09-12-2013, 11:19 AM   #8150
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Originally Posted by moto44 View Post
Getting ready for 1/10 indoor racing this year I have been running a b4 and b4.1 the last couple of years. Was looking at the RB6 is it worth the extra money or better to get a b4.2? Thanks
I had b4.1 and rb6. We will all have our own opinion. IMO, rb6 is the only buggy i've driven that is easy to find tons of steering and rear traction! I have never driven a buggy like the rb6. However, i've seen people ditch the rb6 and go back to the b4 platform. So it's personal experience and opinions.
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Old 09-12-2013, 01:10 PM   #8151
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Default New RB6

Hey guys took new RB6 out last night to try it out,with out of box setup with gold rear springs and nothing else done car is unreal 10 times the car the losi was..what is a good starting point for the ride hight....Thanks Jimmy
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Old 09-12-2013, 01:55 PM   #8152
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Hey guys took new RB6 out last night to try it out,with out of box setup with gold rear springs and nothing else done car is unreal 10 times the car the losi was..what is a good starting point for the ride hight....Thanks Jimmy
I run 24mm/F, 23.5mm/R on medium or lower traction tracks
I run 23mm/F, 22.5mm/R on high traction tracks
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Old 09-12-2013, 04:56 PM   #8153
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Originally Posted by Cpt.America View Post
I run 24mm/F, 23.5mm/R on medium or lower traction tracks
I run 23mm/F, 22.5mm/R on high traction tracks
Capt.America Thanks for the quick info....
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Old 09-12-2013, 08:25 PM   #8154
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Originally Posted by MikeXray View Post
Any "Candy" paint will appear translucent, and you will need to back it properly, that backed with silver will look nice, but will not be that bright.

I haven't found a nice bright pearl orange in a rattle can as of yet.
So you have tried this paint before? http://www.amainhobbies.com/product_...ray-Paint-35oz
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Old 09-13-2013, 07:53 AM   #8155
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I have quick question and I am sorry if this has been spoken about before.
I started my Mid Mount build tonight and I have decided to give the UM521 rear arms a go as I will be racing on carpet.(wise move I am not sure )

Can someone confirm that these don’t require a shim (2mm for the kit arms) as when I tried a 2mm or even 1mm the holes for the screws on the chassis and RF2 hanger wouldn’t line up and only would without it being shimmed.
I hoping I haven’t got something wrong that is all
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Old 09-13-2013, 07:57 AM   #8156
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Originally Posted by KalEl63 View Post
I have quick question and I am sorry if this has been spoken about before.
I started my Mid Mount build tonight and I have decided to give the UM521 rear arms a go as I will be racing on carpet.(wise move I am not sure )

Can someone confirm that these don’t require a shim (2mm for the kit arms) as when I tried a 2mm or even 1mm the holes for the screws on the chassis and RF2 hanger wouldn’t line up and only would without it being shimmed.
I hoping I haven’t got something wrong that is all
Correct, no shim required.
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Old 09-13-2013, 07:57 AM   #8157
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Originally Posted by Johnn27 View Post
So you have tried this paint before? http://www.amainhobbies.com/product_...ray-Paint-35oz
Not that brand, but I have used candy orange before.
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Old 09-13-2013, 05:38 PM   #8158
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Default 10% off Kyosho parts

Hi Guys,

Our Kyosho parts are currently on sale. 10% off all Kyosho parts till the end of next week. Coupon code: KYO913 (case sensitive).

Click Here to go shopping now.

Cheers,
Jeff
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Old 09-13-2013, 07:43 PM   #8159
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Very nick paint scheme. Who does your painting? If you can would you PM me their info?
thanks man, I think it will look good on the track! I will ask him if he's up for out of town work, he typically just does stuff for locals here in St. Louis but I will find out for you man! He just did Zach Phillips' Special "K" bodies for the Byrons race and they came out badazz! Congrats BTW Zach on your podium finish in pro truggy



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Old 09-15-2013, 01:08 PM   #8160
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I just built my RB6 and ran for the first time today. Loving the car but I had an issue with the right rear out drive got chewed up by the dog bone. The kit came with UMW514/515 which I believe are the wide rear arm hangers and the shock dog bones are 65.5mm. My shocks measured 26.5mm from bottom of shock to top of long eyelet. Am I missing something or need different dog bones that are longer? thanks for the help
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