Just ran across this Huge motor while looking for a smaller brushless for a boat. Its huge.... 44 x 74 mm............comes in 1695 or 2450 kv, this may be a new option for 1/8 trucks. Its listed as $89 bucks, half of a Monster 2200. The Mamba monster is 39.9 x 75.............anyone try it yet or is it too new?

"Kershaw Designs 44mm Diameter Revolver Brushless Motor HUGE brushless motor with all the output of the Castle motor without the price. Backed by KD's legendary service. Mounts at standard brushless motor position. 5mm output shaft. XL - 44x74mm. L - 44x65mm."

thats a BFM for sure.

Looks like a feigo.

You get what you pay for... I doubt they partnered with Steve Neu to make that design... You can have all the power in the world, but if it's not efficient it's useless.

because it doesnt have NEU written on it and cost $299 it isnt a quality BL? sorry, ive bought a bunch of "cheap" BL motors that perform just as well as motors 3x and 4x the cost.

but that statement is true- you get an overpriced motor with a big sticker on it..... just what you paid for.

They perform just as well for those first few minutes, sure, but that isn't the whole of the story.
Feigao is just feigao, their designs are around the CM36 or CM20's in terms of efficiency.

The only claim the make in that soundbite is that it has "all the power of the castle motor" and that may certainly be true (if it is similarly sized and has similarly strengthed magnets). Anyone can make a powerful motor - the real test is can it run at 40mph on tough terrain for 10-20 minutes without getting into the red zone as far as temperature is concerned. Call me skeptical but Castle partnered with one of the best designers in the industry in designing their motors. If these guys had done the same, I'm sure we'd have heard about it (in the advertisement, etc.)

It actually reminds me of one of these KD's at hobbycity. I realize there is not a plastic endbell but the wires look to be that same "VERY hard to bend" wire and it has the "fabric" covering on it. The wires are also the same color in the same arrangement.......................i dont know?

I've seen and heard many a feigao motors bite the dust from over heating and rotors going off like a grenade. You get what you pay for! Only problem I've ever had with my Neu motors is having to replace bearings. Going with a cheapo motor is like going with a cheapo speed controller. "Zero" customer service. I called Tekin about a replacment rotor for my T8 that had the magnets come unglued. I got to talk to an american customer support person and had the rotor in the mail that afternoon. I'll pay for a Neu anyday over a feigao clone for my big rigs.

i cant comment on customer service, i never needed it, and i always thought an overheating motor was a clear indication of too much gear.... i mean lets be realistic- ive ran a feigao 7t in a boat with a three cell lipo and a "cheapo" speed control... i still run it now. but im sure i had a "lucky pick" or whatever. my point is, there is good stuff out there that DOESNT cost an arm and a leg.

Yea but if you went with a quality motor, not a inefficient feigao you can geat it up higher and not have to worry about temps at all.... My truggy is running a Neu 1515 1y on 6s, It does 55mph ( Radar confirmed ) throughout the whole entire run... ( This is my bashing truggy, It does 55mph and can run for about 25 minutes and my temps are never higher than 141F on the motor and the ESC the fan comes on occasionaly...I would LOVE to see a feigao be able to do it... In the end it comes down to you get what you pay for.

Yeah it all depends on what you are trying to do, if you are putting around at brushed speeds (ie. 25mph) on no terrain, you can make do with a motor like that just fine. It's when you start going for the tough terrains, mid to high speeds (35+ mph), or racing (lots of acceleration and deceleration) that you need a decent motor.

I dont own this motor.......just came across it, but the ZERO customer service that was eluded to is not correct. It is sold and branded by Kershaw designs...............a big RC outfit, with personal concern for its customers. Dan Fisher is a great guy and very helpful. Also, and i dont own it, but i guarantee you I could pull my 2200MM, throw that motor in my E-maxx and run it on my MMM esc on 6s and hit 50+mph easy, without heat issues.

This post was mainly meant for those looking for big power who cant afford the $200+ motors, thats all..........but all the input has been very honest and diplomatic.............thats why i like this place!

Who says you have to drop $200 to get a Neu? Buy one used. Not like they are hard to come by with the recent expansion in 1/8 brushless conversions and kits. Buy a used CC Neu for ~$100. If you need more motor than that than you must already have deep pockets for a bigger scale project and should be able to afford a 1521 or larger.

But by all means, buy one and let us know how that motor holds up to 6s, or near 40k rpm.

Im perfectly happy with my MM2200 as of now............great motor, but if i did need a big'n, and had limited funds, i would give it a shot.

I'd like to see more specifications on the motor before I make any comments but the fact that they sell feigao motors seems to indicate that it is made by feigao and private labeled. Nothing wrong with that, happens all the time but I'd like to see the efficiency numbers on it.

I'm fairly positive it's a Feigao as they do a lot of mfg for private labels. Their sizing is identical to some re-labelled Feigaos from other brands. It's a 2-pole motor, so it won't behave like a 4-pole. I don't have a problem with the price, but "backed by KD's legendary service" makes me laugh. There are quite a few unhappy Kershaw customers, myself included. He ripped me off on a small part and instead of doing a small thing to make it right, he basically gave me ZERO support and I lost my money. Legendary...perhaps...just the wrong type of legend.
If you call up Feigao, they'll make you any motor they offer (sensored included) if you order a minimum quantity. Some of their product line includes 44mm 2-pole motors available in 65mm and 74mm lengths. Gee, that sounds familiar. I've had Feigao, KD, and rebadged Feigaos. I didn't have a problem with any of them aside from the KD running very hot. The rebaded Feigao has removeable rear endbells unlike the standard Feigaos, which is nice. I don't have a problem with what they offer. You just have to accept their limitations given their price.

bhcvc has hit it right on the head, feigao makes most of the brushless motors available, we know Neu hads it own production faciliity, Lehner has its own plant in Germany, I have been told by someone close to the rc world it only took Chris Fine $10,000 US on his first order to get feigao to build him the nemisis blue line
Don't forget about Lehner guys, they got motors way bigger than this, of course they are not cheap but as indicated you usually get what you pay for.

When I was at the AUVSI show (year or more ago) at the castle booth they were showing off some of the Neu's, you can see the display in a pic here. The motor you see attached to the prop is not an outrunner, it is a high-pole-number inrunner (~5000W) and the large one in the background is around ~10000W. I don't remember the exact cost, but think several thousand... at least a few thousand I'm sure.

Uh say what?
I have an Erevo running a Feigao 6XL that hits 58mph on 4s and temps are about 140ish and it does this all day long
on 6s its nuts! I have yet to get a top speed run, I need a new rx..

and this motor btw is a copy of a feigao, not a real one..
this is the real feigao
http://www.offshoreelectrics.com/pro...-580-L&cat=116
we use these in big FE boats and they kick big roost!

yeah the 3080 lehner is 60 x 120 mm and rated at up to 11,000 watts lol, of course it weighs almost 2lbs by itelf if I remember right, a local flyer bought two for his 1/4 scale P 38 he is building. Nothing produced today would hold up to that, 2000 watts will destroy most 1/8 rc cars drivetrains

I have the castle 2200MM in my E-maxx and Castle states up to 5000 watts for it, so far ive only broken a ring gear tooth on a two year old diff.

Here is a quote from castles site..............and yes i know its their site where the numbers are proudly displayed: "Mamba Monster systems typically pull 4,000-5,000 watts (5 to 6 horsepower) under acceleration. The Neu-Castle motors are some of the highest efficiency motors that we have ever tested; they are up to 85%+ efficient on our test rig."

I would not beleive that, the cc neu motors are between a 1515 and a 1521 Steve Neu has these rated at 1250 and 1750 sustained and 2500 and 3500 watts burst and of course they are going to rate the lowest kv (725=1515 and 525=1521) motor at the highest voltage they can(40? 50? 60 volts?) the CC 2200 probably makes around 1600 watts on 6s with burst in the 2800 range

And what kind of terrain are you on?

As for the '5000 watt' thing it depends on how you measure the wattage.
'Burst' and 'Continuos' watt ratings are typically averages taken over a time period, ie. 30 seconds for continuos and 5 seconds for burst. Instantaneous wattage can be much higher as the motor's power draw is generally far from linear.

In the scheme of things, all these ratings are useful, the 'burst' and 'continuos' wattage can help to choose a motor while the 'peak' wattage ensures that a given motor does not strain an ESC to the point where it blows.

Well.............numbers being somewhat irrelevant........................then mine's just really fast.

LOL?? What are you running on downhill? there is NO way you can run 4s while hitting 58mph and running all day at 140ish.. Are you kidding me? You know how many amps that has to pull? You are completely BSing.... I want a Radar/Tempature confirmed video in real times I garuntee EVERYTHING I own in this hobby your lying.