Tekin Pro4 vs. Roc 412

[crawler nut]

So I've read, and read and read for about a week looking for info, trying to decide which one to go with. Which is the better of the 2 the Pro4 or the Roc 412? It will be going in my 9.5lb Wraith and used for both crawling and trail bashing. I run everything on 3s. Let's here some opinions on which is best and why.

[dirk379]

I've done a bit of thinking on the new roc 412 as well. It seems the pro4 has just as much (if not more power everywhere-noted by users, and is cheaper)? If that's the case, go with the pro 4 3300, 60t 32p spur, 12t 5mm novak pinion. I was in the same debate last week and stuck with the pro4. So i purchased pro4 #3. If the price of the motors were the same i might try it.

Here's a good tid bit of info.

Originally Posted by JohnRobHolmes

Just got done tearing them apart to compare next to a regular pro4. Findings as follows:

Rotor diameter: Same (18.5mm)
Stator: Same (20mm ID)
Magnet strength: Same (400 to 420 mT surface)
Rotor length: Same

Besides some cosmetic changes and the shaft reduction for 1/8" pinions, they appear to be constructed exactly like the Pro4. The difference, from what I can tell, is the winds offered. The Roc412 is offered is only Y winds which reduce recirculating currents and offer the KV choices needed for crawlers.



Bottom line, unless there is something I missed, the ROC412 will have identical performance to the Pro4 motors (ignoring the KV change). If you are wanting a Pro4 for a crawler or trail rig the ROC412 will be a better choice because of the KVs offered and 1/8" shaft. If you already have a Pro4 I don't see a reason to switch over unless a slower motor is needed.

[Highmark]

Depends.

What ESC do you want to run? Are 5mm pinions a problem for you? They're very similar motors at the end of the day, so if you have to ask I would think it's going to come down to what's more convenient for you.

[crawler nut]

So John says the Roc 412 for crawling and trailing. I'll have to shop around some. Any more opinions?

[crawler nut]

The cheapest I've found either motor was $134.99. So they are the same price. But I'm still torn between the 2. What make 1 better than the other, other than the kv options?

[crawler nut]

Originally Posted by Highmark

Depends.

What ESC do you want to run? Are 5mm pinions a problem for you? They're very similar motors at the end of the day, so if you have to ask I would think it's going to come down to what's more convenient for you.

I'm running a MMP, and no the pinions are no problem to me.

[dirk379]

Originally Posted by crawler nut

So John says the Roc 412 for crawling and trailing. I'll have to shop around some. Any more opinions?

The pro4 has done really well at trailing and crawling for me too. Really. You won't be disappointed with either. Personally, for a 9.5lb wraith i'd go with the pro4. If i was putting the motor in the new vaterra twin hammers rig i'd probably try the roc412 because its a lighter, and smaller rig. Just my .02

[J-FAB NOR-CAL]

Originally Posted by dirk379

The pro4 has done really well at trailing and crawling for me too. Really. You won't be disappointed with either. Personally, for a 9.5lb wraith i'd go with the pro4. If i was putting the motor in the new vaterra twin hammers rig i'd probably try the roc412 because its a lighter, and smaller rig. Just my .02

X2 The Pro4 is wicked,I just put one in my AR60 rock buggy and am quite pleased.I drove a SCX Wrangler the other day with a 412 on 3s geared 87/14 I believe with a Tekin RS Pro programmed for crawling.The owner said it was as close to the feel of 3s and a quality 35t brushed motor that he could get.It had nice lowend crawling ability and so so wheelspeed,but no midrange @ all.Personally I was'nt too impressed with it to buy one for my project,so I went with the Pro4. I like to do more technical crawling,but also like to bash. The way I am getting my low end crawlability is with the AX2 spd trans from RC4WD with a 58t spur,(comes with a delrin 60t that lasted one run.)as well as 9t pinion,and underdrive gears front and rear.The only way to be able to use the 9t 32 pitch pinion is too purchase the new 1/8'' rotor for the Pro4 with alows for more pinion options.I would'nt recommend 48 pitch gears for the Pro4,it'll eat them in a heart beat. Then when I need to get up and go I shift into second and hold on,the PRO4 IS NO JOKE!

Sorry for the novel,but wanted to share my opinion and experience with the PRO4.

[crawler nut]

I already have 32p gears so that's no problem. I wish I had the coin for a 2 speed. I do technical crawling as well, but trailing and loose dirt gravel and rocky hill climbs are fun sometimes as well.

[scottanthony]

Neither... Tekin 4.5 SC4X 550.... Pro4 doesnt even come close.....3s for 18 mos now on hard rocky terrain. Plus, better bottom end than either the Roc or Pro4...
Besides, you are going to want the 5mm shaft after I watched a guy peel the glue off the shaft and stator on his new ROC motor w 3MM shaft...

2 speed No way either. Cushdog just shattered his RC4wd Tranny front outdrive on his Wraith the other day, we heard it snap.... Ouchy...

[crawler nut]

Originally Posted by scottanthony

Neither... Tekin 4.5 SC4X 550.... Pro4 doesnt even come close.....3s for 18 mos now on hard rocky terrain. Plus, better bottom end than either the Roc or Pro4...
Besides, you are going to want the 5mm shaft after I watched a guy peel the glue off the shaft and stator on his new ROC motor w 3MM shaft...

2 speed No way either. Cushdog just shattered his RC4wd Tranny front outdrive on his Wraith the other day, we heard it snap.... Ouchy...

That's way to fast of a motor for the Wraith. Not to mention it's a 550 can and that's also to large. I already had to notch the upper link mount to fit the 540. I'm going with either the Pro4 or the Roc 412. That 550 motor is not an option.

[TNT1]

What are the power specs of the pro4 and roc412?Power in watts.Why is this info so hard to find?This should be on every frickin' motors specs!Unbelievable!

[Olle P]

TNT1, check this thread and you will be answered...

[Charlie-III]

Originally Posted by Olle P

TNT1, check this thread and you will be answered...

HAHAHAHA....LOL, I had fun re-reading that one.

Yeah, it's hard to find info from motors regardless of the manufacturer.

[crawler nut]

I read through the whole thing again also. Still isn't much to be found about a side to side comparison of the 2 motors. I want to be sure I'm getting the best motor for my application. Especially since I'll be forking out around $150 after it's all said and done.

[redjones]

I been running 17.5 Tekin redine with Tekin RS in my stock gearing SCX10. I am absolutely pleased. Butter smooth crawling and has wheel speed for climbing. I recently waterproof it with liquid tape, so far it has been working great.

[crawler nut]

I have the Redline and I'm looking for just a bit more. That's why I'm asking about the Pro4 vs. the Roc 412.

[JohnRobHolmes]

The Pro4 will have slightly better low end control, the Roc412 has slightly higher punch and drag brake. If the KV isn't available in one build, the other type is a natural choice. Power wise- you won't be able to tell a difference between the two. Either is a large step up in power from the Redline, and both do very well in a crawler or off road truck.

[crawler nut]

Ok. That answers it. Last question. Is there going to be a noticeable difference between a Roc 412 3100kv and a Pro4 3300kv? I also worry about it getting to warm. Which one is easiest to keep cool?

[twisted bender]

im running the roc 412 3100kv in a 9lb ar60'd truggy with a 32p 60t spur and 10t pinion and its a power house its nice and smooth like a pro4.i do recommend a hd motorplate.heat is not a problem with this motor im running a mmp pro with mine