Originally Posted by
shanwright
Hi mate you might want to try a few things to see where its tight then you can look closer at the front or the rear as need be 
.
1. Remove the side belt and see if its freer
2. Roll it on a bench while holding the rear up and the again with the rear held up by hand.
Are your bearings new? ie do they have grease in them ? or oil?
if they are new and fill with grease it will take a bit of running until they free up. or pop of the seals and clean and oil them.
the only other thing i did here is the brake disk is a bit tight on the drive hex and this will cause the shoes to rub just a bit
the plastic hex need a slight rub with some wet and dry.
Not sure if it will help, but it raining here and there’s not much else to do. 
Steve H
Dude, did you go out and buy one?!