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Kyosho Ultima RB6 & RB6.6 Car Thread

12-21-2016, 08:46 AM - Wikipost

R/C Tech ForumsThread 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:

Main chassis - UM731 - $125.99
Side guards - UM732 - $9.99

Battery Holder:

Battery plate - UM733 - $8.99
Battery foam - UM741 - $7.99

Rear Bulkheads:

MM3 and Laydown - UM740 - $9.99
- MM3 bulkhead
- Laydown bulkhead
- Swaybar Holders

3 Gear Transmission (MM and RM):

Transmission - UM734 - $10.99
- transmission cases
- spacers
- caps
- plastic FR & RR suspension hangers
Gear Cover - UM735 - $6.99

Laydown Transmission (3 and 4 gear possible):

Transmission - UM736 - $10.99
- transmission cases
- spacers
- caps
- required extra hardware
- pastic FR suspension hanger
40T idler - UM737 - $6.99
Motor plate - UM738 - $18.99
Gear cover - UM739 - $6.99

Body:

Blade body - UMB05 - $27.99

Optional Parts:

Lightweigt Blade body - UMB05LW - $31.99
Aluminum FR suspension hanger - UMW705B - $28.99 (may be able to file UMW705 to fit)
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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01-08-2014, 07:51 PM

#9286

chillindrdude

Tech Adept

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Join Date: Nov 2013

Location: virginia

Posts: 117

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alittle RB6 porn.

new to me used RB6. mostly stock:
-ball diff
-30wt, pink springs fr / 25wt, red springs rr
-savox, spektrum rcvr, speed passion reventon pro, SP 3.0 MM 10.5T motor
-76/25 gearing
-shorty lipo with direct bullets

gearing seems alittle high. will try 22 or 23 pinion at my local indoor track if the temps get too hot.

01-08-2014, 07:57 PM

#9287

rpboggs1

Tech Regular

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Join Date: May 2013

Location: York, PA

Posts: 404

Trader Rating: 19 (100%+)

Quote:

Originally Posted by Roger H

Just ordered my rb6.

Anything recommended out of the box?
Im switching from TLR and hoping this wont be a hard transition.

Check the first post. And you definitely won't be disappointed.

Wish I could have made it to the ROAR race this past weekend... You guys did a great job on the track. Looked awesome!

01-08-2014, 07:58 PM

#9288

rpboggs1

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Quote:

Originally Posted by chillindrdude

alittle RB6 porn.

Sexy! Sexy!

01-08-2014, 10:31 PM

#9289

Speedychris22

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Join Date: Feb 2010

Location: Valley Cottage NY

Posts: 2,035

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When installing the 521-1 arm I'm noticing no one mentions where to put the 2mm shim for the position? Am I missing something?
Edit add moment
Am I using the steel bushings or the law32 ones on the new holders with the inserts

01-09-2014, 02:31 AM

#9290

KalEl63

Tech Master

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Join Date: Jun 2011

Location: 3rd Rock

Posts: 1,996

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I put my RB5 front axles in with the hexes tonight so now its testing time for the different wheels.
I must say I do like the RB5 axles over shimming the RB6 axles but hey no doubt really no difference I just like the look

01-09-2014, 06:34 AM

#9291

MikeXray

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Location: New York

Posts: 5,755

Trader Rating: 73 (100%+)

Quote:

Originally Posted by Speedychris22

They are wider and there is no room for the shim, one of the small advantages of the rb6 arms is more wheelbase adjustment.

01-09-2014, 07:03 AM

#9292

VenturaDC

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Location: Ventura, SoCal

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Any one do anything to their gear covers to protect better? My home track can get pretty dusty and when I had my rb5 and now my rb6 I'm getting my gears all gunked up regularly. I always make sure my gear cover is newer and in good condition but it still happens. Wish it had a third screw spot on the bottom.

Was thinking maybe a thin layer of silicone adhesive to the edge of the cover to make a better seal?
Any thoughts or ideas?

01-09-2014, 07:13 AM

#9293

Posvar

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I had the same problem. I put a thin line of double sided tape on the inside of the gear cover and kept the top protective plastic sheet on the exposed part of the tape. Works well. We have a clay track with some very small particles of sand that get in and ruin a spur occasionally. A third(lower) screw would be a great addition.....