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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 04-08-2015, 01:50 PM   #11926
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SRS was a blast. I like how high up you are from the track so there are no blind spots, and making the triple in mod ST was so gratifying. Had a very good time avoiding the Short Bus people with Traxxas Slashes with stock tires. Definitely slicks were the way to go. So much bite, any tire with a tread stunk. Got quite a few compliments, and confused stairs when I had the ZX6 out. Like they had never seen one before lol.... Was one guy there with a T5m I had hoped to throw down some laps with, but his kit wasn't complete.
We have one local with a ZX6. Kyosho in general is not very popular at all here. For a short time several guys bought RB6s and called themselves the red army. 6 months later they were all gone and running AE. I swear AE somehow brainwashes locals. Did you notice at cactus that every car in the stock amain was a B5M? Not saying it is the best or not, but it sure has a local presence. I am told at other tracks they are all Kyosho or TLR. It would be nice to see a variety of cars on the track.
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Old 04-08-2015, 01:51 PM   #11927
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any concerns with traction w that setup?
I did anticipate this so if I have issues with traction I can always move the battery further back to get more traction. Since this is just testing the waters.
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Old 04-08-2015, 01:54 PM   #11928
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Is that a traxxas receiver box?
Yes it is. I wanna keep the receiver water tight, plus I can hide all the wires.
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Old 04-08-2015, 01:57 PM   #11929
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May try it if I dont have to to touch the chassis.
You don't have to touch the chassis but you do have to dremel out the plastic side chassis trim to fit a shorty pack battery.
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Old 04-08-2015, 11:08 PM   #11930
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I now own track fast laps records in 2 wheel stock buggy, Stadium Truck, and 4 Wheel buggy. Thank you Kyosho.
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Old 04-08-2015, 11:14 PM   #11931
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We have one local with a ZX6. Kyosho in general is not very popular at all here. For a short time several guys bought RB6s and called themselves the red army. 6 months later they were all gone and running AE. I swear AE somehow brainwashes locals. Did you notice at cactus that every car in the stock amain was a B5M? Not saying it is the best or not, but it sure has a local presence. I am told at other tracks they are all Kyosho or TLR. It would be nice to see a variety of cars on the track.
Price issue and the fact that ever hobby shop I called while in AZ. Has no Kyosho parts could be a big reason. Don't get me wrong I liked the B5M, but it took a lot of money, the 3 gear diff, and countless hours to work like I wanted it to, but still was not close to what I have with any of my K cars. My RB6 other then aluminum hubs, and rear suspension mounts is box stock. I won't need suspension mounts ever again due to the pill I serg design, so a one off high price tag is nothing to me for this amount of dialed driving. It just feels way more natural then the good B5M did, and I can really push the shit out of it and it doesn't fret. The B5M was never really that comfortable being thrown around like I can with the new car. I would say the 22 2.0 with all of the new stuff is a close 3rd behind the AE car. Bit I put as much into the 22 as I have the K car and still have a better buggy now. I should have kept the cars I had a year ago.
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Old 04-09-2015, 02:09 AM   #11932
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We have one local with a ZX6. Kyosho in general is not very popular at all here. For a short time several guys bought RB6s and called themselves the red army. 6 months later they were all gone and running AE. I swear AE somehow brainwashes locals. Did you notice at cactus that every car in the stock amain was a B5M? Not saying it is the best or not, but it sure has a local presence. I am told at other tracks they are all Kyosho or TLR. It would be nice to see a variety of cars on the track.
I still rock the Rb6! Best car ever produced hands down.😈
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Old 04-09-2015, 02:36 AM   #11933
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Hi people can anyone help me, i don't really now were to start my car has understeer entering a corner and I'm kinda new to 2WD any advise on were to start would be great, I'm currently running the book setup. TIA
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Old 04-09-2015, 08:14 AM   #11934
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Hi people can anyone help me, i don't really now were to start my car has understeer entering a corner and I'm kinda new to 2WD any advise on were to start would be great, I'm currently running the book setup. TIA
What kind of track and what is its traction level like?

Mid motor or rear?

Are you running the same front tire choice or similar as everyone else?
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Old 04-09-2015, 08:27 AM   #11935
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I still rock the Rb6! Best car ever produced hands down.😈
+1
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Old 04-09-2015, 08:32 AM   #11936
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Price issue and the fact that ever hobby shop I called while in AZ. Has no Kyosho parts could be a big reason. Don't get me wrong I liked the B5M, but it took a lot of money, the 3 gear diff, and countless hours to work like I wanted it to, but still was not close to what I have with any of my K cars. My RB6 other then aluminum hubs, and rear suspension mounts is box stock. I won't need suspension mounts ever again due to the pill I serg design, so a one off high price tag is nothing to me for this amount of dialed driving. It just feels way more natural then the good B5M did, and I can really push the shit out of it and it doesn't fret. The B5M was never really that comfortable being thrown around like I can with the new car. I would say the 22 2.0 with all of the new stuff is a close 3rd behind the AE car. Bit I put as much into the 22 as I have the K car and still have a better buggy now. I should have kept the cars I had a year ago.
Red Rock Hobbies still has some RB6 parts. I doubt they are continuing to order them though. I never said the RB6 was bad. I really like mine. Still debating getting another one. And yeah, out of the box the B5M is lacking, too heavy and kinda lumbers around. At 1500g it feel pretty good. But yeah, a lot of work.
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Old 04-09-2015, 10:25 AM   #11937
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Red Rock Hobbies still has some RB6 parts. I doubt they are continuing to order them though. I never said the RB6 was bad. I really like mine. Still debating getting another one. And yeah, out of the box the B5M is lacking, too heavy and kinda lumbers around. At 1500g it feel pretty good. But yeah, a lot of work.
Yeah, my RB6 with only a lightweight shorty can get as low as 1542 with the aluminum buts. Think if I go lightweight body and titanium screws/turnbuckles 1500 should be rather easy. Already have the lightweight VST2 Pro 17.5 in there. Feels peppier then the Shurr speed without the questionable business practices lol...
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Old 04-09-2015, 10:27 AM   #11938
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lol, lets not get into the Jason Dias thing, it has been done. I tried the light weight shorty. It lacked "kick" for me later in the race. Did you run that battery in 17.5 at SRS? If so, how was the jumping 6-8 minutes in? Some of those double gave me fits in 17.5 when power dropped off.
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Old 04-09-2015, 12:01 PM   #11939
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lol, lets not get into the Jason Dias thing, it has been done. I tried the light weight shorty. It lacked "kick" for me later in the race. Did you run that battery in 17.5 at SRS? If so, how was the jumping 6-8 minutes in? Some of those double gave me fits in 17.5 when power dropped off.
After 7 it didn't have anything left. I'm thinking of putting some
Light weight items on and balance it out with a standard shorty, but only turnbuckles, ball studs and screws. I'm not running the pucks system, and the lightweight chassis will only happen if I find an extra $100.00 laying around somewhere lol..
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Old 04-09-2015, 12:07 PM   #11940
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After 7 it didn't have anything left. I'm thinking of putting some
Light weight items on and balance it out with a standard shorty, but only turnbuckles, ball studs and screws. I'm not running the pucks system, and the lightweight chassis will only happen if I find an extra $100.00 laying around somewhere lol..
yeah, we typically run 7-10 minute amains with practice laps. Heats and lower mains are 5 minutes with 2-3 minutes of practice laps.
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