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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

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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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01-14-2013, 06:22 AM

#4246

Nitronut3

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Quote:

Originally Posted by K_King

Anyone try the 521-1 arms vs stock extensively?

Thats all that i have ran since i built the kit. I have tried to run the 6 rear arms but they make the car feel too locked in. THe -1 arms let the rear end rotate a little more off power. Me and another kid in St.Louis have come to the conclusion that if the track gets slick out, run the 6arms, if not, run the -1

01-14-2013, 06:54 AM

#4247

t8rtot

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Quote:

Originally Posted by silvalis

I'd like to know further: For anyone who uses the exotek steering parts and have previously broken the steering plate, have they broken anything else yet? Like ripped the ballstud out of the steering hubs?

i have the Exotek rack, it tightened up the feel of the steering and i haven't broken anything else.

i wouldn't recommend going all aluminum in steering dept but if you want some added security, and dont have the updated plastic part, add the exotek rack.

01-14-2013, 06:56 AM

#4248

t8rtot

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Quote:

Originally Posted by Nitronut3

is this with the wide or narrow rear hangers and any additional toe on the hubs? also what kind of surface?

01-14-2013, 08:05 AM

#4249

Dale.0

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Every place i have looked is out of stock on Aluminum rear hubs. Are they in stock anywhere?

01-14-2013, 08:11 AM

#4250

Posvar

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Quote:

Originally Posted by Dale.0

Every place i have looked is out of stock on Aluminum rear hubs. Are they in stock anywhere?

What degree are you looking for? Pm me....

01-14-2013, 09:31 AM

#4251

Dale.0

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0 degree

01-14-2013, 09:32 AM

#4252

Cpt.America

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Quote:

Originally Posted by Dale.0

0 degree

FYI, I find the stock plastic 0 degree hubs to work just great.

01-14-2013, 09:37 AM

#4253

Trevor Williams

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guys that went from the rb5 sp2/wc to the rb6......what are your thoughts? I have a chance to get a rb6 but my rb5 is really dialed right now, soooo??

01-14-2013, 09:57 AM

#4254

Cpt.America

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Quote:

Originally Posted by Trevor Williams

guys that went from the rb5 sp2/wc to the rb6......what are your thoughts? I have a chance to get a rb6 but my rb5 is really dialed right now, soooo??

If the wallet allows, i wouldn't hesitate. I think the car is better in all regards. The BIGGEST difference to me, is how much better the car jumps and lands. Just night and day better than the rb5.

That being said.. the RB5 is still a fantastic car.

I still have my 5 (need to sell it). I planned on keeping the roller around until I was SURE the 6 was going to be better enough to keep it.... and for me, it certainly is.

01-14-2013, 10:01 AM

#4255

Dale.0

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Doesnt the aluminum hubs have a second set of holes for the ball stud?

01-14-2013, 10:07 AM

#4256

Cpt.America

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Quote:

Originally Posted by Dale.0

Doesnt the aluminum hubs have a second set of holes for the ball stud?

yep, 4 instead of 2... nice, but certainly not necessary. Outer hole on the stock hubs will be just right anyway. The best benefit is actually the larger more durable outer bearing... but bearings are only a buck, and they don't really go out anyway. What im saying is, don't worry about it too much. Not in stock in a store right now? Well, go back in a month and look. no biggy.