Endless Sphere

Thanks...I did a little research and the XF19C is a 10 pole motor where the MAC is a 16 pole. That alone doesn't mean anything besides the MAC may have better torque and the MXUS may turn with fewer losses but the MXUS also has a 5.8:1 reduction where the MAC has a 5:1 so in the big picture they are...

chris09...where did you buy your MXUS XF19 motor?

I was looking on the MXUS web site and I couldn't find it.

Thanks

If you want acceleration then get a geared hub like the MAC...as long as you are limited on the amperage your battery can supply it will out accelerate any DD available. By limited I am talking about roughly 50A battery current which is what most of the better 14s Li Ion batteries are limited to due...

In the past, Cutler Mac shipped a "sample". One motor one time, second-order has the 8 piece limit. Exactly...you can do a one time buy of one motor as a "sample" but your second order has an 8 item minimum. I already used my "sample" buy. EM3ev stopped selling the MAC...

sorry ,didnt know they dont shipp to USA.Yes they are extremely pricey. What about the mxus xf19c motor,i belive it is stronger and can take more power.Also you can order the speed you want. I ordered mine from here: MXUS EBIKE CONVERSION KIT Claire Jin Skype: mxus021 Mail: Claire@mxusebikekit.com ...

ebikesolutions sell Mac motors 250 w and 500 w.both are same motors just diffrent markings.They call it Puma https://www.ebike-solutions.com/en/shop/pedelec-e-bike-parts/motors/?p=2 Thank You Very Much. Just figured out they are quite pricey (over $500 USD plus shipping) and don't ship to the US :c...

Regarding battery mounting....If you have the fittings for a water bottle you can use them or you can use a couple Bottle Bobs from Grin Tech...they allow you to attach just like the water bottle fittings but use hose clamps to hold the Bottle Bob mounts to the frame. In addition, I use two hose cla...

I'm sure you *could* install *a* clutch into a GMAC (just not a plain old MAC clutch), but you would probably have to design it and have it manufactured; I doubt there's an off the shelf part that would just pop in there. It also may require changes to other structures inside the GMAC depending on ...

Here's a thought. I absolutely LOVE my MAC 12t for my application. Unfortunately they seem to have disappeared on the market for some weird reason. My question is, would there be any way to install a clutch in a GMAC motor to take advantage of the design changes (torque arm and cable exit location)...

colsaunders2....Where did you buy your MAC and what turn "T" was it advertised to be? I bought a "locked plate" like in your motor from EM3ev back when they were selling MACs but I have note installed it yet. I am curious to see if it works with my rear freewheel (not cassette) m...

How badly do these things get beat up when used off road? i'm not talking about grinding up 5 to 10 minute inclines, Here it's generally pretty flat and the most climbing you'll do may be for a minute. Do the gears get pretty thrashed when you break and regain traction? The clutches fail eventually...

Based on the run I did using the motor simulator, top speed using a 20x4 fat tire and a 52v battery is about 21 mph. One problem with the G60 motor is that it uses the Z910 connector and that along with the small phase wires limits the amperage you can use. I considered the G60 until I talked to Jus...

just to take things a step further than my previous question, i noticed many of the entry to mid level fat bikes on the market using hubs from bafang, shengyi and now even mac on some juiced iirc. Presumably most will get minimal real off road use past dirt paths etc But do you figure hubs hold up ...

I don't have the L10 connector...all of my MACs are the older three phase wires with a six pin connector for everything else.

I don't know the answer to your question...if nobody posts helpful info soon, I'd either call or email Grin Tech.

Hey guys I just got my gmac installed with my phaserunner v2 :) Did you go with the 8T or the 10T...I like the 10T a little better personally but they are both good motors. What voltage are you running? The L10 connector sure is convenient but it won't carry as much amperage as the older bullet con...

Nice thing about a mid drive off road is it handles better than a Direct Drive motor in the front or rear due to weight distribution. The MAC in the rear did not handle as good as the BBSHD in the middle when I pushed my bike harder off road. And of course a heavier DD motor would be even worse. All...

How badly do these things get beat up when used off road? i'm not talking about grinding up 5 to 10 minute inclines, Here it's generally pretty flat and the most climbing you'll do may be for a minute. Do the gears get pretty thrashed when you break and regain traction? Manbeer...I would not recomm...

Good links but MAC has made changes since all of those ended .

A lot of their advancements were thanks to Paul at EM3ev and Justin at Grin Tech.

Thanks onespeed.

Not sure if BMC has kept up with MAC or not...MAC has made some improvements in recent history where they went to thinner laminations, improved the gears and improved the clutch. At one point BMC was slightly better than MAC...I have no idea how they compare at this point.

Why not use a Rim Driven Propeller...may be a little while before they are commonly available but here is a short introductory video and IMO they are nothing more than a Direct Drive motor with fins : https://www.youtube.com/watch?v=Te_xejpriFM

Just started learning about Rim Driven Propellers.

Here is a good introductory video: https://www.youtube.com/watch?v=Te_xejpriFM

Basically a Direct Drive electric motor with fins .

Willow...what battery voltage did you use and did you drop it before it got to the motor using a DC:DC converter? I am considering doing something similar to what you did with a 12' JON boat and using a 52v Li Ion battery. Another option for my 12' JON boat is to start with a DD bike motor similar t...

OK first off there is no bigger MAC/GMAC fan in the world than me BUT if you are going to ride a heavy bike off road with big tires...you need a mid drive where you can change the gearing. I started with a 12T MAC and eventually laced it in a 20" wheel trying to keep it cool but it still got to...

Thanks yes sorry 'overclocked' that was a little for effect, I build a lot of PCs, but yes pushing high current and or voltage for the fun of experimentation. I am really not interested in speed, its a bonus 20mph on throttle only would make me happy, but its long slow hill climbing ability I want....