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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 04-22-2013, 08:44 AM   #6301
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nice looking buggy Ryan. Are those AE greens on the rear?
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Old 04-22-2013, 08:57 AM   #6302
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They are greens, needed to try a softer spring last time I was out and that's all I could get a hold of. It is 1 step softer then kyosho golds. Next time out I will put the golds back on. I was using reds too but golds neem to be the ticket for me
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Old 04-22-2013, 09:10 AM   #6303
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noticed that they have an aluminum servo horn for the rb5. Should I still get the tlr servo horn or go with the RB5 aluminum
Here are the links
http://www.amainhobbies.com/product_...-Horn-Gunmetal
or
http://www.amainhobbies.com/product_...-Horn-Gunmetal
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Old 04-22-2013, 09:18 AM   #6304
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the rb5 one is nice with the inserts for different servos, but pricy. The losi is cheaper, but you will need to drill it and put a nut on it because it is 4-40 tapped.
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Old 04-22-2013, 09:27 AM   #6305
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I'm afraid that the kyosho option might strip as well since its a plastic insert
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Old 04-22-2013, 09:30 AM   #6306
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its plastic that is supported by alum. I "could" strip, but I would think the chances are low if you installed it correctly.
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Old 04-22-2013, 03:22 PM   #6307
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My 17.5 mid motor setup!

Need to check my part stock. need to see what parts i need to get to make mod mid motor.


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Old 04-22-2013, 03:55 PM   #6308
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got the buggy it is about hwta I expected. it did come with the radio plate mount. But it did not have the narrow hangers (booooo) and the slipper plug on the gear cover is missing. other it looks very good. that is one free tranny. I gave it a little twist and it just took off. seems really well built. time to go over it and place my amain order.
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Old 04-22-2013, 05:16 PM   #6309
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Sweet deal! You can use the rubber 22 slipper plug just trim it and its money and doesn't fall off. No need for the narrow blocks for our tracks I run wides everywhere even at cactus.
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Old 04-22-2013, 06:31 PM   #6310
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yeah, I pulled the one off my 22 to try. worked good. my 22 kinda need a new gear cover anyway. sadly the kyosho cover is cheaper, lol. ok, the shocks. WOW so freaking nice to build. just like the old losi xx shocks. I am gonna run losi 55x4 with 30/27.5 for now. I have read the 55x4 is sweet. I might get the ae 1.3x4's once they come into stock. My front pin brace is tweaked a little not a ton, but a little. I am not sure if it is the 1mm thicker version. how thick is the upgraded brace? is the xxx brace better, thought i read it works. Honestly the pin brace design is a little weak. The plastic bumper is suppose to keep it on and support it I guess. I notice the previous owner was trying to put the Team Stock setup on the buggy. he even removed the 3x screws from the side pods. the only screws in the pods are the end ones. should i put more screws in? And yeah, avid rear wheels dont really fit. I used the locked hut on it, but it looks like it only threaded 1/2 way. I am unsure if the serrated surface will be enough. sadly I just mounted all of my tires on avid wheels for my b4.....so I kinda wanna use them. ok, gonna get back to the buggy.
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Old 04-22-2013, 06:45 PM   #6311
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Quote:
Originally Posted by Wildcat1971 View Post
it looks like the kyow5303-05 tree comes with a lot of not so useful items. Does anyone else make a plastic or delrin upper shock mount?

exotek makes black delrin ones and i like them on my buggy
the serrated nut is plenty i been running it on my proline wheels for months no issues
also i make a nice shock tool for your new shocks if your interested pm me and the front brace will not be anissue within the next 2 months i have re-engineered some of these parts and am testing only for durability now. i seem to have found a very simple way to fix the issue and it will work on the entire k car lineup
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Old 04-22-2013, 06:48 PM   #6312
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1) the serrated surface is enough. Just make sure it bites into the wheel.
2) What kind of track are you running on. Outdoors, I reckon the Kyosho 5x1.3 works better.
3) put the screws back in if you want it stiffer and already have good traction.
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Old 04-22-2013, 07:11 PM   #6313
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Quote:
Originally Posted by Jason.Dias View Post
We're running the saddles in the same position you have your shorty, and you already made the modification to the motor guard, so all you need to do is remove the rear battery holder, and flip the front holder, and the saddles should fit.
Thanks Jason, figured it was something simple. Have you been having success with the saddles vs shorty? Cody was trying them at JBRL last week and he TQed and won pretty easily.
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Old 04-22-2013, 09:01 PM   #6314
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So I was at a local track yesterday and they said the RB-6 is better for stock than anything else, why is that?
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Old 04-22-2013, 10:18 PM   #6315
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Quote:
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So I was at a local track yesterday and they said the RB-6 is better for stock than anything else, why is that?
You hang out at wcrc huh? Ahaha
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