Yes, that servo is meant for 1S use (without booster) only. For 2S, Sanwa has the SRG-HR servo.

I run a roche p12 16. I drilled a small hole in the knucle and put a set screw in there. I got tired ofhaving to replace knuckles once they slopped out. Havent had any issues since. Just have to make double sure all you pivot balls and arms are nice and free.

Yes it does. I have one on mine

Can you suggest a servo that will work on both 1S & 2S and also can use the Sanwa SSR/SSH option.

Not really. These are the only two servos I know of and one is for 1S only, the other for 2S. But the BEC-voltage depends more on the ESC you use, than on the battery alone. Most modern 1S ESC have internal boosters, giving them a BEC voltage of at least 6V, even on a 1S battery.

I see. So for clarity.........I am using a Trakstar One Cell GenII ESC which has a BEC voltage of 6v. I should therefore be looking at the SRG-HR servo?

Correct. For a 6V BEC, the SRG-HR is the right one.

Thanks very much!

Does anybody know of a direct bolt on replacement for the center pivot on the Roche?

Two options exist...
1- xenon pivot that looks like a top pivot
2- zen racing pivot that mimics the AE r6 pivot

Thank you!

https://youtu.be/fKjSOXcyLLU

Went testing at Arena Limburg this week, love the facility got my 17.5 dialled in and did 350 laps with 13.5 yesterday. My driving is definitely improving.

i have a futaba S9602 servo still NIB, last time i ran servos like this, the class was 4 cell MIMH. looking at specs it's close to the current S9650 but not digital

will this servo work in today's 1S powered 1/12th, i have a MT4 controller, hobbywing 1S xr10 stock esc, and i have various 380/481/482 rec's?

It should work you have to set the channel to NOR on the radio.
I wouldn’t use an analog servo, Digital servos are more reliable and faster than analog servos.

Hi All,
What is the difference between putting shims at the top of the kingpin vs above the steering block (under the upper arm)? What is the effect of changing the angle of the upper arm? Is this a roll center adjustment?

Thanks in advance!