Included in this tuning kit is 12 sets of 3 rollers, for a total of 36 roller weights ranged from 3g to 14g.
Combining 2 sets of rollers allows you to tune with a large variance of weights sets.
3x 10g & 3x 11g rollers (alternating weights in variator) gives you 10.5g roller set.
Lighter roller weights will increase RPM for any given road speed.
Heavier weights will lower RPM for any given road speed.
Install the weights by alternating the weight from heavy to light in the variator.