New 1000w Geared hub MXUS XFC19

[Zorroavelo]

Some photos... The esthetic side will come after... I also have a mxus xf15 and i like this motor a lot, it's maybe why i finnaly bought his big brother. I used it for maybe 5 years with 52v battery and 25amp. This xf15 is so reliable! I bought copper gears with a new clutch to use it with my 72v battery and i will probably test on it the ATX oil cooling

 

[neptronix]

Yeah it's real unfortunate that MAC motors are basically just sold by one company now: Cutler MAC.
I don't think you'll pay more than $300 for one today.

60A/72V sounds like madness. I'd love to see and hear this motor pushing that kind of power!

 

[Zorroavelo]

Yeah it's real unfortunate that MAC motors are basically just sold by one company now: Cutler MAC.
I don't think you'll pay more than $300 for one today.

60A/72V sounds like madness. I'd love to see and hear this motor pushing that kind of power!

If you want i will try to post the sound here, now i'm on 40 amp only because i'm waiting new components but the sound of the motor at hight speed is furious. I will soon buy a locked clutch to avoid another clutch issue, i just hesitate for the steel gears because i have a doubt. If someone can tell me there is no problem with steel dust and magnets and coils... Or if there is some copper gears of that dimension somewhere... (43teeths 57mm X.12mm)

 

[spooky]

Did you get your locked clutch or did you solder the clutch. If you bought it, where did you get it ?

 

[Kajman]

You will burn xf19r soon with that amount of power. Mac is weaker motor than xf19r, has issues with some controllers too. Where did you find steel gears and maybe clutch replacement?

 

[yantra yatra]

Is there a way to get this motor GDR19 MXUS to go faster than 50-55km at 48v? Can you buy a faster winding? Sounds like a great motor apart from a little slower top speed than ideal.

Any thoughts on best budget 1500w~ motor? Seems like MXUS is a lot better / more torque than CSC (45-50nm DD), Leafbike is something like $700AUD before a decent controller, Freegen all axle will end up expensive with a decent controller.

Any other suggestions? Nominal 1500w capable of 2.5kw bursts would be good. Light rider on 26 wheels. Maybe getting a 29er would be one way to get some more speed from the MXUS. Or running 27.5.

 

[yantra yatra]

Some photos... The esthetic side will come after... I also have a mxus xf15 and i like this motor a lot, it's maybe why i finnaly bought his big brother. I used it for maybe 5 years with 52v battery and 25amp. This xf15 is so reliable! I bought copper gears with a new clutch to use it with my 72v battery and i will probably test on it the ATX oil cooling

How did it go at 72v?

 

[Payer791]

How did it go at 72v?

I have been running the 1000w version of this motor for 2 years at 60V 40A. I got it complete with wheel from Ride1Up as a warranty replacement for a Shengyi "500W"(850W) hub on my Core5. At 48 volts I got 31 mph, and shitgobs of torque. The Core5 is a 49 lb bike and it absolutely rips off the line, and the "noise" everyone is carrying on about is music to my ears. Now at 60V, you need to be judicious with when you whack the throttle wide open, and it gears out at 39-41 mph, but gets there really quickly. I run a oil bath, but I did much due diligence with the Geocel silicone and don't overfill it. 500ml of Dexron 2, with a splash of Tri-Flow, and Marvel Mystery Oil works for cooling, and I absolutely HAMMER that motor. I live in the Philly suburbs Pottstown/Sanatoga and it's quite hilly here. I have a GDR-19 1000W, waiting in the wings for when this XF quits, but 2 years and 7.5K miles and it's still ripping, it has gotten quieter, but still makes a distinct hub drive whine, and at top speed it sounds glorious.

 

[gone]

Is there a way to get this motor GDR19 MXUS to go faster than 50-55km at 48v? Can you buy a faster winding? Sounds like a great motor apart from a little slower top speed than ideal.

Any thoughts on best budget 1500w~ motor? Seems like MXUS is a lot better / more torque than CSC (45-50nm DD), Leafbike is something like $700AUD before a decent controller, Freegen all axle will end up expensive with a decent controller.

Any other suggestions? Nominal 1500w capable of 2.5kw bursts would be good. Light rider on 26 wheels. Maybe getting a 29er would be one way to get some more speed from the MXUS. Or running 27.5.

I've got 2 of these motors and didn't have any luck getting a faster winding despite asking as clearly as I could. On the second order I tried telling them that I was going to put it into a smaller wheel but still wanted the same top speed, hoping for a higher kv version. The first motor has a 26" sticker on it, the second has a 22" sticker - both have the same unloaded rpm.

 

[yantra yatra]

It’s the one hesitation I have with this motor, that it’s a bit too slow. It sounds like getting a higher voltage battery could be a solution, but that would require getting new batteries. I think it can handle 72v, does anyone know for sure?

The Fatbike version looks like a beast. 125nm. Would be great if it was offered for normal dropout width.

Also I figured the XF19 and GDR19 are the same motor, is there any difference? @Payer791

 

[gone]

It’s the one hesitation I have with this motor, that it’s a bit too slow. It sounds like getting a higher voltage battery could be a solution, but that would require getting new batteries. I think it can handle 72v, does anyone know for sure?

The Fatbike version looks like a beast. 125nm. Would be great if it was offered for normal dropout width.

Also I figured the XF19 and GDR19 are the same motor, is there any difference? @Payer791

It's the same motor. This guy is running one at 72v in a 29" wheel and tops out at around 70kmh in this video but I would imagine he had the wind behind him on this run, in other vids it's closer to 60kmh

 

[Zorroavelo]

I still didn't change anything, but to answer about the voltage it can run with 72v without any issue(for me) if you keep the amperage at 40 or below and if you're not always with full power... I damaged the clutch with 60amp but maybe you will have damages with lower voltage and amps... To me i'm confident with putting more amps again but before i will lock the clutch and improve the cooling with atx oil. Maybe i will change the phases cable. I wonder if i will buy the fat version because i can buy a alluminium fat frame for 50 dollars. I think the fat motor is much stronger and can potentially handle maybe 100amps. What i don't like is that now my front wheel is hard to keep on the floor with 60amps(on the start). I would like a longer tail, i often wonder how to make it just a little bit longer, not like a dragster but like only 5 or 10cms. I have ideas but no time...

 

[99zip99]

What at 100amps 72v or 7,200 watts yes it can run at that wattage . Just tell how long it lasts. Please report back.
72v and 40amps will melt it on a hill.

 

[o00scorpion00o]

Yeah it's real unfortunate that MAC motors are basically just sold by one company now: Cutler MAC.
I don't think you'll pay more than $300 for one today.

60A/72V sounds like madness. I'd love to see and hear this motor pushing that kind of power!

Hey Neptronix, long time, hope you're doing alright ?

I regularly pushed 3.5 Kw, into my old Mac 8T motor with 16s LiPo 66.6v hot off the charger and modded 40amp controller roughly 50 ish amps , the cycle analyst told me around 3.5 Kw, it was amazing fun.

It never used to roast that I could tell and after a long time with such abuse , eventually the clutch died but the newer grey gears were perfect and so was the motor wingdings, no discolouring or anything.

The way I see it , the motor didn't burn simply because it got up hills so fast, even with my old 48v 20 Ah ping batter it would do 30 Mph up a 12% grade.

Paul from em3ev sent me a newer modified clutch but sadly it was a bit too wide for the motor cover but I eventually decommissioned it as I was insane doing 44 Mph on a push bike.

I then got a Haibike trekking bike with Gen I Bosch 50 Nm mid drive motor and what a great quality bike but I was never a big fan of torque sensing especially because I have dodgy knees, cadence sensing would be better for me because with torque sensing , if you are in pain you can't put a lot of pressure on the pedals so the motor can't provide the power, it's a bit of a stupid system really.

The other issue I found with the Gen I Bosch was the terrible pedal drag with the motor off, while peddling the bike with the Mac 8T felt just like a normal bike, bit heavier but felt nowhere as bad as the drag of the Bosch. I don't know if they have changed this.

The Bosch is still going after 13 years and the battery still works but there's only around 2,000 Kms on it, I didn't use it much after.

 

[neptronix]

Yo! long time, no see.

True bummer about the bosch. Could you get away with running an external controller to it?

That pedal drag would bug me. MACs have awesomely low freewheeling drag. What's a shame is that their availability is shrinking, even though they're still one of the best hubs on the market.

This motor looks like it's successor but i personally object to the weight of it :O