SRT CH6012 HV CL Servo Review for GT Style 1/10 Touring

I picked up this servo as an upgrade to go in my ancient Tamiya TA03 Porsche 911 GT1, which I’ve been renovating from box stock to something resembling race spec and a speedy street basher over the last couple of months. (See the actual build log for that one in another post!)

The original steering servo was an old Acoms AS-12, which was ok for it’s time, but a bit low on torque and a little sluggish. I “upgraded” to a servo that came with a GoolRC motor/ESC combo but that, while strong, was actually somehow slower and made it practically undriveable. 

The SRT CH6012 has certainly solved those problems. This is a very fast steering servo. It's fast and quick to react but also somehow smooth in it's response. Compared to my other fast servo, an AGFRC A81, it's maybe very slightly slower, but defenitely smoother and possibly a little more linear in feel. The SRT also works great on standard 6V power, with a little bump in performance if your ESC can go up to 7.2V. I also got rid of the old Tamiya servo saver and replaced it with the hi-torque version, which instantly improved a lot of the play in the steering system.

Here are the tech specs:

Torque @ 6V: 9KG
Torque @ 7.4V: 12KG

Speed @ 6V: 0.07Sec
Speed @ 7.4V: 0.06Sec

Operating frequency 330Hz

Metal gears: Copper and Aluminium 

I also tried this servo in my Tamiya M03 Mini Cooper, and that was a great fit for that car. Brilliant direct control of the steering, and plenty strong enough for the smaller scale M-Chassis model. I think this might become a really solid go-to servo for racing M-Chassis stuff and other models that sort of size and weight.

The servo feels really well made, with the external plastics feeling really solid, with the whole unit feeling really solid all round.

If you’re looking for a reasonably priced reasonably high performance servo, this gets a strong recommend from me. 

Here’s a completely non-sponsored retail link for the store I bought mine from in the UK:

https://www.modelsport.co.uk/product/srt-ch6012-hv-cl-servo-90kg-007-sec-at-6v-semi-m-case-433882

I believe they’re being carried by quite a few shops. I also saw them on the MB Models website when I was browsing for pricing and stock levels.