I am pulling 3KW peak...no problem for MP3

[Bikemad]

I have found one quality bearing, but it is a open bearing.
O well I don't mind the bearing is still in the motor, so dirt etc can get in.....

Without the rubber seals, a hose directed in the wrong place could easily allow water to make its way between the the hub cover and the controller housing and straight into the bearing, passing straight through it and ending up inside the main motor assembly.



I personally, would not choose to fit any bearing without rubber seals to my MPIII!

Even a quality bearing is unlikely to last very long once water and dirt gets into it. 

Alan
 

[MAGICPIE3FOCUSPOWER]

Nope my MP3is heavy modded, much better then stock.

Even with a waterhose, water can't get in......due my mods....
This is my last GM motor, I have learned the hard way....
Too much money spended....to make it good...

[MAGICPIE3FOCUSPOWER]

Also the bearing is placed in a good spot, so it's difficult for water and dirt.

O yeah I have bought NSK brand bearing