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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 11-06-2012, 06:35 AM   #2386
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How is this car doing on outdoor tracks any vids?
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Old 11-06-2012, 06:35 AM   #2387
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there are a few on youtube
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Old 11-06-2012, 07:17 AM   #2388
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Seen most of those was looking for more U.S. style tracks.
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Old 11-06-2012, 07:27 AM   #2389
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Hi guys

what aftermarket / other brands wheels are there for the RB6? Dex2wd, maybe? Would hex'ed B4.1 wheels fit by chance? Sourcing issues with Kyosho parts here sometimes...

thanks
Paul
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Old 11-06-2012, 07:36 AM   #2390
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Quote:
Originally Posted by Lonestar View Post
Hi guys

what aftermarket / other brands wheels are there for the RB6? Dex2wd, maybe? Would hex'ed B4.1 wheels fit by chance? Sourcing issues with Kyosho parts here sometimes...

thanks
Paul
Proline, JC, DE, Duratrax, and yes the B4.1 12mm are the same.
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Old 11-06-2012, 07:39 AM   #2391
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Quote:
Originally Posted by bigwavedave33 View Post
Proline, JC, DE, Duratrax, and yes the B4.1 12mm are the same.
yay! Awesome, thanks

Paul
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Old 11-06-2012, 07:40 AM   #2392
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It appears to me that the Jconcepts rear b4.1/rb5 rim doesn't fit the rb5 hex nearly as well as the kyosho rim does. Not sure why but it feels like the hex just fits tighter in the kyosho rim.

Dave
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Old 11-06-2012, 07:45 AM   #2393
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Tight is never a bad thing.
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Old 11-06-2012, 07:49 AM   #2394
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Quote:
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Tight is never a bad thing.
I agree. The kyosho fit nice and tight on the hex and the JC's felt loose and it appeared as it created a very slight out of round issue.

Dave
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Old 11-06-2012, 08:05 AM   #2395
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Quote:
Originally Posted by Lonestar View Post
Hi guys

what aftermarket / other brands wheels are there for the RB6? Dex2wd, maybe? Would hex'ed B4.1 wheels fit by chance? Sourcing issues with Kyosho parts here sometimes...

thanks
Paul
Besides the obvious Kyosho, AKA Hexlite's I think fit the best. They say they are for B4.1/RB5, but the front wheels are drilled out for Kyosho so it's a tighter feel (like Kyosho).

ProLine fronts need to be shaved a bit to fit (if you are running the new WC/RB6 Hex axle).

When running an after-market rear wheel, be sure to get the serrated wheel nuts. KYO1-N4045F

My choice of wheels in order are AKA, Kyosho, ProLine.

Dean
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Old 11-06-2012, 08:55 AM   #2396
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I run on indoor carpet and it seems gear diffs hold up better. Is there a gear diff that will drop into tue rb6 gearbox? Other than that this car is awesome, handles way better than my Durango.
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Old 11-06-2012, 08:59 AM   #2397
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the gear diff from the SC fits
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Old 11-06-2012, 09:05 AM   #2398
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Quote:
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this car is awesome, handles way better than my Durango.
yeah, but that's not saying very much.


















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Old 11-06-2012, 09:44 AM   #2399
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Quote:
Originally Posted by DeanV View Post
Besides the obvious Kyosho, AKA Hexlite's I think fit the best. They say they are for B4.1/RB5, but the front wheels are drilled out for Kyosho so it's a tighter feel (like Kyosho).

ProLine fronts need to be shaved a bit to fit (if you are running the new WC/RB6 Hex axle).

When running an after-market rear wheel, be sure to get the serrated wheel nuts. KYO1-N4045F

My choice of wheels in order are AKA, Kyosho, ProLine.

Dean

DE Racing's Borrego wheels are a great fit - nice and tight on the hexes, and don't require a special locknut either. The recessed beadlock look is cool too:

http://www.deracing.net/store/index....y&path=149_164
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Old 11-06-2012, 09:59 AM   #2400
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I found the kyosho wheel to fit good obviously but it is one of the least durable wheels. After I acetone my wheels I scrape off any debris rough it up a bit, more than often parts of the nylon come out. After some not so gnarly rubs against pipes and what not, the wheel always looses. Looks like hell.

I found the jconcepts mono to be more durable, only issue is the axle does not stick out enough so use the DURANGO serrated nut only parts usable from a dex210 :P.
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