Thudbuster ST Elastomers

The relative durometer (stiffness) of the elastomer is denoted by number of dots printed on the elastomer. Thudbuster ST comes with Soft, Medium, & Firm elastomers in the box, with Medium elastomer installed. 

Extra Soft - 1 Dot - Rider under 100lbs

Soft (included) - 2 Dots - Rider weight 100lbs - 150lbs

Medium (installed from factory) - 3 Dots - Rider weight 150lbs - 200lbs

Firm (included) - 4 Dots - Rider weight 200lbs to 250lbs

Extra Firm - 5 Dots - Rider weight 250lbs to 330lbs