Everyone keeps saying buy the black secondary. Why the Black and what is the diffrence between the color designation on the springs. Are the colors a standard or will that change with manufactures. Is the black spring stronger than the pink and is there others to choose from (ie white green purple?) Is there a link out there that gives a good explanation and testing on this.

Thanks, Mud

 

The black spring is for the back clutch(secondary) and the pink is for the primary clutch which is the front. The black secondary helps grip the belt better causing less slip and more low end.