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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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11-15-2013, 06:53 PM

#8656

skengines

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Quote:

Originally Posted by bleubyu

Does that gear require the Avid pads as well? any other things needed? to use this gear? Slipper plates? Slipper pads?

Thanks for your help

You need the Kyosho Top Shaft from Avid and also this below.

http://www.amainhobbies.com/product_...Clutch-81T-84T

It really is a great setup and Avids Customer service is top notch

11-15-2013, 07:12 PM

#8657

bleubyu

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spur gear

I'll grab the top shaft and the spur gear conversion

Thanks!!!

11-15-2013, 07:54 PM

#8658

skengines

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No problem.

It is this one here. They have different top shafts but this is the one you want.

http://www.amainhobbies.com/product_...minum-Topshaft

11-15-2013, 10:24 PM

#8659

K_King

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Quote:

Originally Posted by kes7u

Also change to the short shock bottoms.

Not a requirement, you can get the same droop with mediums.

11-15-2013, 10:31 PM

#8660

E73

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Quote:

Originally Posted by K_King

Not a requirement, you can get the same droop with mediums.

Only difference between small & medium would be where the threaded shock collar is on the shock body correct? Collar higher with medium & lower with small?

11-15-2013, 10:56 PM

#8661

TheRcworld101

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I have a couple of question's. #1 where can I get a spring kit for my buggy both front and rear. #2 can I run a stick pack in the mid motor layout????? #3 is the kit durable??? #4 is it easy to tune???

11-16-2013, 06:04 AM

#8662

bleubyu

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spur gear

Awesome, thanks for your help!

This will be my first big race in a few years, and my first time running in the 17.5 class. Open is our usual class where I race.

I just picked up an RB6, this machine looks great! Cant wait to hit the track with it!

11-16-2013, 06:25 AM

#8663

skengines

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Quote:

Originally Posted by TheRcworld101

You can get the Avid Spring kit, but I only run the Kyosho Springs on mine. I don't know if anyone has tried AE 12mm springs and I'm not sure if they will even fit.

Kit is durable but then again I don't crash too often.

11-16-2013, 07:05 AM

#8664

TheRcworld101

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Quote:

Originally Posted by skengines

Thanks but can you run a stick in the mid motor layout or do you need to run shorty or saddle.And is the kit easy to work on and easy to tune???

11-16-2013, 07:22 AM

#8665

skengines

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I don't think a full stick will work in mid motor but maybe others here can chime in on this. I know it will in rear motor though.

All I run is saddle packs or shorty in mid motor.

Car is easy to tune.....except I wish the rear bull stud to the bulkhead was a little easier to access.

11-16-2013, 07:26 AM

#8666

MikeXray

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Quote:

Originally Posted by TheRcworld101

Thanks but can you run a stick in the mid motor layout or do you need to run shorty or saddle.And is the kit easy to work on and easy to tune???

I'm pretty sure its made to fit a full stick, but you would have to mount the receiver and speedo up high.

11-16-2013, 08:04 AM

#8667

K_King

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Quote:

Originally Posted by E73

Only difference between small & medium would be where the threaded shock collar is on the shock body correct? Collar higher with medium & lower with small?

Only because the actual length is 2mm longer.

They droop will be the same if adjusted but you will have less CVD plunge.

11-16-2013, 03:40 PM

#8668

KalEl63

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Quote:

Originally Posted by TheRcworld101

Thanks but can you run a stick in the mid motor layout or do you need to run shorty or saddle.And is the kit easy to work on and easy to tune???

Quote:

Originally Posted by MikeXray

I'm pretty sure its made to fit a full stick, but you would have to mount the receiver and speedo up high.

MikeXeay is right you can but do need to mount things high I checked my MM RB6 to see if it would work.
Plus have a look at this link and there is a car about half way down in MM with a full pack.

Yes this car is easy to work on and tune.
I have only changed about 3 things from the kit set up.
The best thing I changed was to put the GHEA 4x1.3mm pistons in it.

I guess when it comes to the springs it depends on the track to what you need.
My rear mount dirt car the kit springs work very very well but I'm still working on the springs for my carpet mid mount car and I am going to try the kit springs again. (TLR springs fit and work)

Last edited by KalEl63; 11-16-2013 at 06:02 PM.