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Kyosho ST-RR

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Old 10-19-2017, 10:14 AM   -   Wikipost
R/C Tech ForumsThread Wiki: Kyosho ST-RR
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Current running upgrades/Mods people are doing to this truck late 2016/early 2017.

-Chassis Options

-Engine Mount Option
IFW102 - Blue narrower Mount. Allows you to put Lock Nuts on top of screws that hold the Mount plates in.
Agama motor mount AGM6206

-For MP9 Knuckle conversion
Kyosho IF419 MP9 Knuckles
Kyosho IFW436 16degree Hub Carrier
Kyosho IF420 Knuckle Arm Collar (slightly thinner than STRR one)
Kyosho IF467 Long King Pin

-Strengthening upgrades
King Headz KP-360-BLK Front Torque Arm
King Headz KP-372RR-BLK Rear Torque Arm (extended chassis)
King Headz KP-300LB-BLK Lower Front Holder B
King Headz KP-300UL-BLK Front Upper Holder L
King Headz KP-329 Rear Brace Mount
IS157 Hardened Diff Case from Psycho Kruiser
IGW002GM Alum Rear Hubs
HB Outdrives #67197

-Replacing C-Clip Hinge Pins on Inner Susp Holder
HPI 109848 Hing Pins
Racers Edge/KFactory RCEK8034 Pins (Very hard to find)
Replace complete A/B/C/D Blocks with:

-Servo Saver Mod
IFW450 MP9 SS Alum Upper Arm
IF417 MP9 SS Lower Assembly

(See for full pics and description).

-Performance Updates
IFW327BL Blue Narrow Hexes (typically run on front).

-Bodies Options
RC8T Bulldog Body (discontinued late 2016).

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Old 06-17-2020, 05:01 PM
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Originally Posted by CrAzYoNi
Sorry for popping-up this great thread!
I've got a kit of the STRR Evo 2. with an electric conversion I'm finishing those days, got the whole kit and parts getting dust for over 3years now due to some medical issue...
Anyways, I've installed the motor house with the stock Spur 50T and wanted to use the 4x15mm screws - but it seems:
A. The motor house is not stable as with the 4x12 screws - I can shake it by my hand without making too much of effort
B. The screws don't get the whole way inside (they are a bit bold-out from the bottom of the chassis)
Any idea what am I missing anything?

I'm building it based on Kyosho electric conversion & HobbyWing XR8 Plus (150A) + Xerun Kv G2

Thanks in advance!
That mount sucks, You can make it work but I recommend the one M2C Racing.

If your going to use the 50t spur you'll need some spacers.

Or you could go composite with no spacers

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Old 08-06-2020, 01:25 PM
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Posts: 16

Originally Posted by houston
Anybody interested in a nib strr evo.2?
Do you still have the Kit?
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Old 02-13-2021, 02:11 AM
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Join Date: Feb 2021
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i have the rear block system from m2c. I want to set 3 degrees. I take the inserts with 2 points right? For the rear block I put the inserts so that the points point inwards and the recording is moved outwards. right? for the front block how around should I put the inserts? Again the one with 2 points and how about? this moves the recording up or down. sorry for my bad english and thanks in advance
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Old 03-02-2023, 10:19 AM
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Does the Neo 3.0 St printed body fit the Strr kits? I don't feel like potentially having to trim 20% of the body off to get it to fit well. Is it an issue?

Last edited by sn47som1; 03-02-2023 at 10:32 AM.
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Old 03-14-2023, 03:54 PM
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Originally Posted by sn47som1
Does the Neo 3.0 St printed body fit the Strr kits? I don't feel like potentially having to trim 20% of the body off to get it to fit well. Is it an issue?
No it will not. Its technically the same exact body, but the Neo ST is shorter so they trim the body in the back which makes it too short for the STRR i believe. The unpainted one will definitely work.
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