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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 04-29-2013, 05:10 PM   #6466
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I just beefed up the bulkhead with the ghea aluminum one. 11 grams not too bad. I probably can run without the brace now . http://www.absolutehobbyz.com/produc...ducts_id=13543
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Old 04-29-2013, 05:12 PM   #6467
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I just beefed up the bulkhead with the ghea aluminum one. 11 grams not too bad. I probably can run without the brace now . http://www.absolutehobbyz.com/produc...ducts_id=13543
Interesting. How did it affect handling and did you have to make any major changes to setup?
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Old 04-29-2013, 05:13 PM   #6468
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Originally Posted by fullsyzz View Post
Wild cats & wild gophers. All we need is a wild cherry and this thread will have it all!
Maybe its all the same person?
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Old 04-29-2013, 05:17 PM   #6469
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Interesting. How did it affect handling and did you have to make any major changes to setup?
Did not affect handling much actually. Little more weight front and down low. Might be the steering is a bit more aggressive now but it might be just me (had a one week gap and forgot how the car was the week before to drive).

I just had that nagging feeling that since the hinge pins were not parallel (when brace is bent), it was causing toe in and loosing some steering. No major changes to setup, I just reduced rear droop (medium shock ends from longer) for another issue with the car.
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Old 04-29-2013, 05:31 PM   #6470
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Default New Paintscheme...

for those of your on the XB4 thread... yea, sorry for double posting, I think the scheme deserves to be posted again...







Thanks to Vision Concepts for an awesome paint job!
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Old 04-29-2013, 05:53 PM   #6471
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Nice paint.
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Old 04-29-2013, 06:13 PM   #6472
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Cute bodies, what brand is that?
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Old 04-29-2013, 07:03 PM   #6473
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Cute bodies, what brand is that?
Thats the stock Rb6, besides my Xray XB4
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Old 04-29-2013, 08:33 PM   #6474
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Hey guys, for those running MM, are you adding weights in and around the motor? On the RF and behind the battery? I'm gonna try ramming a shorty right up to the motor guard, and 'park' the back end of battery in place with some weights to prevent it slipping towards the motor. I'm thinking with MM I'm gonna need more weight towards the rear anyway. Thanks,
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Old 04-29-2013, 08:40 PM   #6475
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hey what slipper pads do you guys use? I have white ones with my new car and I was looking to order some more and only saw red ones.

I was also having issues with my JConcepts and Proline front hex rims that I used on my B4. It's almost like the hex is too deep in the rim so the wheel slides too far on.

I did a quick search and saw alot of guys asked about this too but no one really gave a straight answer.
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Old 04-29-2013, 08:40 PM   #6476
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One more thing, to get the rear turnbuckles level with the rb6 rear arms, how many shims do I need at the tower and hubs respectively? Thanks!
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Old 04-29-2013, 10:35 PM   #6477
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hey what slipper pads do you guys use? I have white ones with my new car and I was looking to order some more and only saw red ones.

I was also having issues with my JConcepts and Proline front hex rims that I used on my B4. It's almost like the hex is too deep in the rim so the wheel slides too far on.

I did a quick search and saw alot of guys asked about this too but no one really gave a straight answer.
Just FYI, running the Jconcepts rear wheels will decrease your rear wheel track by 3mm (if memory serves). Measured they back to back against the stockers last weekend. Id stick to the kyosho wheels. I don't know what differences there are with the fronts.
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Old 04-29-2013, 11:00 PM   #6478
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Save your lunch money guys, red and black hangers in stock in 1 week! Rm, rm2, mm and mm2 thx, m
woot!
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Old 04-30-2013, 06:01 AM   #6479
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Originally Posted by Cpt.America View Post
Just FYI, running the Jconcepts rear wheels will decrease your rear wheel track by 3mm (if memory serves). Measured they back to back against the stockers last weekend. Id stick to the kyosho wheels. I don't know what differences there are with the fronts.
good stuff.

I do currently have the '3 line' axles on the car so that should compensate some until I can stock up on Kyosho rims.
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Old 04-30-2013, 06:44 AM   #6480
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Originally Posted by Cpt.America View Post
Just FYI, running the Jconcepts rear wheels will decrease your rear wheel track by 3mm (if memory serves). Measured they back to back against the stockers last weekend. Id stick to the kyosho wheels. I don't know what differences there are with the fronts.
The JC b4 or JC TLR rears? I assume you meant B4. 3mm? are you sure, Those manufactures, like AKA, JC and others market those rears as for the b4, RB5/6 and tlr22. The main reason for the wheels nuts fitting seems to be the wheel thickness around the axle. I have some various wheels at home, but none of them have the same tire for an accurate comparison. If anyone has unmounted wheels, I would definitely like to see how the avid, aka, JC, Kyosho and other wheels measure. 3mm would greatly make the car feel different.
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