Originally Posted By HJP
If you're still on the original rear sprocket/pulley change it for one of the new ones before you set off .

+1!
The change for the steel version was the greatest improvement and the best noise reduction I experienced on my M3W

Hannes
once: Green M3W; 2013
now: Red 4/4 Sport; 2011
and some practical cars for use in real life