Here's a short "review" of the budget-priced EXI D227F digital, coreless HS servo. These can be purchased from hobbypartz.com for $14-$16. Depending on which of the 2 available servos you choose. (D227F or D226F) I went for the HS version. Took about 6 days to arrive in SE Tx from Ca. Not bad, especially for FREE shipping. One of the reviews stated that the O-ring EXI used for the output gear is the wrong size. Which can cause these servos to prematurely fail. Upon dis-assembly I noticed my servo didn't have said O-ring. Took a look at the gears and bearings. There is one plastic gear, so not completely MG. Better to have a weak point than burn up a servo. It comes pre-lubed, so no need to do anything. So back together it went. I am running this servo in my LCG/Pro-Trac 2WD Slash. I run a MM esc paired with a Tacon 3930Kv motor. Controlled by a Spektrum 3.0 Tx/Rx. I ran both a 2S 5K and a 3S 5K with this servo installed. Hobby Partz' spec chart claims that @ 6V this servo puts out 111oz./in. @ .09 sec. Not too shabby. A little less torque than the stock 2075, but more than makes up for that with its speed! Lighning quick steering response! Had to turn down my ST expo to get her under control. :P I have only had this servo for a couple of days. So can't really speak for its longevity or durability. It centers itself better than my other $40 servo. Didn't take any temps of it after my runs. The only running I have done so far is strictly bashing. Pavement, gravel, grass. No track time yet. Seems to have great holding power. As of today, (12/17/2010), I can confidently recommend this great priced servo for anyone looking to replace their demolished stocker. Or someone who would rather spend $15 on a new servo rather than on a new set of gears. (Me being the latter) Here are a few pics so y'all can see what it's made of.






There you go guys. Hope this helps newcomers and vets alike. Now get those batts peaked and go outside and BASH! Take it easy y'all.

Thanks for sharing. What servo horn adapter did you use? I haven't found any that fit this horn tightly yet. The Airtronics one technically fits, but it leaves a tiny bit of slop in there.

Wow. Can't believe I left that out. I counted the teeth a few times to make sure I got it right. I believe that it has 23 teeth on the output gear. I happened to have a couple of those plastic adapters that allow you to use a servo horn/saver. At the moment I am using a JR Propo adapter (not 100% on this as there are no markings stating such). Along with the stock servo saver. Just ordered a cheap one sided 23 tooth aluminum servo horn from Integy for $5. On their site it states that the 23 tooth servo horn is for JR Propo servos. Just in case it doesn't fit I will definitely inform y'all.

Yeah the number of teeth matches up, but within a given number of teeth there are still very small differences. Hopefully the JR or KO Propo one will do the trick. I need to get one myself as I've had a user tell me another horn fits & works when it's actually sloppy. Keep us posted!

I have recently installed one of these exact servos in my backslash, but have yet to run it, because I am waiting on a couple 32p pinon gears. I suspected it would be this good. Thanks!

I got one of these in my Stampede.
The Traxxas servo saver fit well with an included adapter, it even fit better than my Kimbrough.
Mine isn't as smooth as I had hoped though, but at least it centers OK.

Sorry no update yet fellas. Been pretty damn busy with the holidays and a STACK of work. Got the single sided aluminum servo horn in last Tuesday. Haven't had time to do anything R/C related. After work I will be taking pics and running the truck with the horn for a little testing.

*Oh, for a durability update. Ran the truck right after opening presents on my bros track. Ended up breaking a REVO rod-end that was on the steering link. And bent the Pro-Trac link! Didn't have a servo saver of any kind on it. Was afraid I stripped the nylon gear in the servo. Took it apart. No damage what-so-ever. So have to say this servo has delivered, and then some. My bro has the popular Hitec servo in his Slash. This servo makes his look like a turtle compared to a hare!! LOL

UPDATE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!



There is the 23t single sided servo horn from Integy. Got it for a little under $5. Fits perfect. It is the clamping style of servo horn. But before I tightened them down I mounted it up to see if it fit properly. It did! So tightened the 2 screws down and went to hit the dirt. More responsive than the plastic horn I was using. If only slightly. Adds to the durability of my Pro 2 Slash. So far no complaints on this servo. I will keep you updated on the durability of it as well as the life-span. So far so good.......

Hi just wondering do u have a servo saver on the servo ?

Look back a couple of posts... it is right there.... But no I don't run a servo saver at the moment. Looking at the pro line bellcrank. Has built in saver. How it should have been done from the start...