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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
Please read: This is a community-maintained wiki post containing the most important information from this thread. You may edit the Wiki once you have been a member for 90 days and have made 90 posts.
 
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(0į/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 10-12-2017, 01:24 PM   #14431
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Quote:
Originally Posted by raved007 View Post
Anyone when came out RB7? never own kyosho but i might get one if there new kit.
Dont know if Kyosho will come out with a new rb7 kit, I hope so. I can say the current 6.6 is a great kit, high perform on carpet/astro tracks which I am used to race on. Hope Kyosho will not change many parts if the rb 7 will come out in the future, loves this kit. Also if a Kyosho 4wd will come out will focus on high grip tracks as astro and carpet.
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Old 10-14-2017, 02:00 PM   #14432
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Guys, I'm driving the Yokomo YZ2 since the release... I really like the car! But....
Just wondering if there is anyone here that changed from YZ2 to the 6.6?
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Old 10-15-2017, 12:31 AM   #14433
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Originally Posted by dikke hond View Post
Guys, I'm driving the Yokomo YZ2 since the release... I really like the car! But....
Just wondering if there is anyone here that changed from YZ2 to the 6.6?
I didnít change but I had the kyosho for many years and recently got the yz2dtm.I really like the yokomo. I like the yokomo out the box,it really only needs the steering rack. Never going to sell my kyosho but,itís really a toss up between the 2. I would say the kyosho is a better value out the box, mainly because of the multiple tranny configurations. Both cars have really good plastic.
Kyosho pretty much only needs rear aluminum hubs and the c/d blocks,and the steering arms(possibly). I really like the dtm rear hubs.
My kyosho wears out the cod drive pins pretty fast. I think the yoke is lighter out the box
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Old 10-16-2017, 01:09 AM   #14434
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Originally Posted by hairymuffin View Post
I didnít change but I had the kyosho for many years and recently got the yz2dtm.I really like the yokomo. I like the yokomo out the box,it really only needs the steering rack. Never going to sell my kyosho but,itís really a toss up between the 2. I would say the kyosho is a better value out the box, mainly because of the multiple tranny configurations. Both cars have really good plastic.
Kyosho pretty much only needs rear aluminum hubs and the c/d blocks,and the steering arms(possibly). I really like the dtm rear hubs.
My kyosho wears out the cod drive pins pretty fast. I think the yoke is lighter out the box
Thanks!
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Old 10-17-2017, 06:15 AM   #14435
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Have got some used 1/10 big bore springs for the Kyosho buggies. Got the springs 2nd hand. All of the color markings are gone. Is there a method to identify the springs? With the cost of the springs I do not want to buy doubles...lol Thanks for any help.
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Old 10-17-2017, 10:24 AM   #14436
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For now, line up the coil end points for each springs to establish pairs. I will try and take some pictures tonight of my springs and what color each spring is.
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Old 10-17-2017, 10:39 AM   #14437
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Thanks Kraig. That would be a big help!
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Old 10-17-2017, 11:08 AM   #14438
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That’s one think I don’t like about kyosho springs,the paint comes off fast. I Used some of my wife’s rainbow of nail polish colors to mark them again
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Old 10-17-2017, 12:39 PM   #14439
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Something I just started doing is using 2.5mm clear shrink tube I got on Amazon and wrapped it over the paint. We'll see how it holds up.
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Old 10-17-2017, 01:15 PM   #14440
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The colored small shrink tubing avid uses to mark their springs were the best idea and never came off. Bad thing is you can’t find all the colors that small
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Old 10-17-2017, 01:17 PM   #14441
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Yup, that's why I went with the clear. Going with white wrap on all the springs then using the appropriate colored markers to mark would work too.
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Old 10-17-2017, 11:19 PM   #14442
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Quote:
Originally Posted by dikke hond View Post
Guys, I'm driving the Yokomo YZ2 since the release... I really like the car! But....
Just wondering if there is anyone here that changed from YZ2 to the 6.6?

Comparing a yz2ca to an rb6.6, the rb6.6 was much MUCH easier to drive on carpet. Way more forgiving. Yz2ca was really edgy and twitchy. Made it super hard to push the car hard. No joke, from Cmain with the yok to Amain with the kyosho. Loved it so much I bought two more rb6.6s.
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Old 10-18-2017, 06:34 AM   #14443
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Quote:
Originally Posted by Jeff Werner View Post
Thanks Kraig. That would be a big help!
It might be difficult to see but the spring on the left is a pink one.

If you could draw a line from top to bottom that indicated the point where the wire ends it would be a straight line between those two point on the white.

Edited picture. Missing the yellow one. The orange dot identifies the end of the spring.

Last edited by Kraig; 10-18-2017 at 06:46 AM.
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Old 10-18-2017, 05:51 PM   #14444
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I appreciate the info Kraig! I have a bunch of unlabeled springs that came with a purchase. Maybe now they will be identified
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Old 10-18-2017, 05:55 PM   #14445
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Thanks for the pic. Where are you placing the bottom of the spring (rotation wise)? What if the bottom of the spring (spring that was face down) was placed at 12 o'clock?

Thanks,
Jeff
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