Article Polini E-P3+ motor review

[knut7]

We finally got our hands on the Polini E-P3+ emtb motor, rated at 75 Nm. There’s also a more powerful Polini E-P3+ MX. The specs of both motors are identical, except for the MX-version being rated at 90 Nm. Here are all the brands using Polini motors. We rode a Focarini Ultra.

Polini E-P3+ specs



It’s easier expaning how a motor behaves, and what it sounds like when we use video images to illustrate. Watch our video for a more detalied review, or keep reading below for the shorter version.









Display and handlebar remote



Polini delivers a relatively big 2.5″ display that’s easy to read. It sits reasonably well protected behind the handlebars. Her we get things like speed, distance, watts pedaled by the rider and...

Continue reading...

 

[Coolcmsc]

Great review, thanks.

What mount is this motor? In other words which motors could it theoretically replace.

Of course I understand there are a one or two examples of theory not matching practice in this regard, but that’s my problem, not yours.

 

[steve_sordy]

An interesting and informative review.
Ref the comparison with the other motors; are you sure that you didn't have the 90Nm motor by mistake?

 

[knut7]

Great review, thanks.

What mount is this motor? In other words which motors could it theoretically replace.

Of course I understand there are a one or two examples of theory not matching practice in this regard, but that’s my problem, not yours.

Unfortunateli, we never remove the motors and study how they are mounted. So I really don't know what to say. It never struck me as being similar to any other mounts :/

 

[knut7]

An interesting and informative review.
Ref the comparison with the other motors; are you sure that you didn't have the 90Nm motor by mistake?

Yeah, that thought crossed my mind But we decided we probably got the correct motor. The MX motor has the letters "MX" written on it, the 75 Nm version says E-P3, like on ours. As can be seen here. POLINI E-P3+ MOTOR IS BORN - Polini Motori

We can't say for sure though. Who knows, perhaps they fitted the wrong stickers, or installed the wrong firmware, if that is possible...

 

[Waynemarlow]

Or its just a firmware version which can be programmed into either motor, its rare these days to have different internals for different wattage motors from the same brand.

 

[Waynemarlow]

Something I've always thought that a new brand such as Polini would do, is to simply mimic say the mounts of the Bosch with an adaptor. I do know of at least one motor that was proposed as a base motor and then that bolted into several adaptors for different mounts.

 

[knut7]

Great review, thanks.

What mount is this motor? In other words which motors could it theoretically replace.

Of course I understand there are a one or two examples of theory not matching practice in this regard, but that’s my problem, not yours.

One guy in the comment section of the video claim Polini is using the same mount pattern as Shimano. I haven't verified this though.

 

[InRustWeTrust]

Yeah, that thought crossed my mind But we decided we probably got the correct motor. The MX motor has the letters "MX" written on it, the 75 Nm version says E-P3, like on ours. As can be seen here. POLINI E-P3+ MOTOR IS BORN - Polini Motori

We can't say for sure though. Who knows, perhaps they fitted the wrong stickers, or installed the wrong firmware, if that is possible...

Can not go under settings in the display and check the type of engine information if it is an E-P3 or mx. That should be true there.

Something I've always thought that a new brand such as Polini would do, is to simply mimic say the mounts of the Bosch with an adaptor. I do know of at least one motor that was proposed as a base motor and then that bolted into several adaptors for different mounts.

They have probably done like most engine manufacturers to create 2 profiles that you can switch between such as eu and usa settings on a shimano engine.

 

[knut7]

Or its just a firmware version which can be programmed into either motor, its rare these days to have different internals for different wattage motors from the same brand.

Yeah, we were wondering if the two motors were the same. I mean, they look identical and Polini list the same weight for both. "Could it be the 75 Nm motor is just a firmware upgrade away from becomin an MX?" That's what I initially wrote in the article, but I removed it. My local Polini contact claimed the MX had a bigger rotor, which would imply more copper. I find it a bit strange since they claim the same weight for both motors. Anyway, I decided to forget about it for now.

Something I've always thought that a new brand such as Polini would do, is to simply mimic say the mounts of the Bosch with an adaptor. I do know of at least one motor that was proposed as a base motor and then that bolted into several adaptors for different mounts.

Word is the mount is the same as for Shimano. Just a claim for one guy.

 

[knut7]

Can not go under settings in the display and check the type of engine information if it is an E-P3 or mx. That should be true there.

I really don't think we got the wrong motor, even though the thought struck our minds. When connecting the app, the motor is listed as "E-P3 PLUS 12.f0.94". So it seems right, but I don't know what it says when connecting the MX, could be only the last digits are different... I have returned the bike, so there isn't much more I can check.

Edit: I had recorded the display info. Unfortunately it only shows the motor serial and the FW version: EP3+4.60

 

[Waynemarlow]

I have returned the bike

Interesting lightweight looking bike.