Sirris F43 Fork Spring (single) Ventus One (rebound adjusted using tool)

(rebound adjusted using tool)

200 lbs - 240 lbs (Heavy = 5

Sirris offers a single weight range for Mayhem Racing custom Pro MX Tune for E-Ride Pro SR

> 160 lbs  (Medium = 5

155MM X 30MM

Sirris F43 Fork Spring (single) Ventus One (rebound adjusted using tool)Fork springs for Sirris F43 forks are sold as individual units. Two springs are required for your fork. You can combine two sequential rates to get an "in between" total fork spring weight if desired. For example, our standard Surron Trail Med Rate is 4. 6 N_MM. It has a 4. 4 one side, and 4. 8 on the other side to get the average of 4. 6 for the fork. Oil and clicker settings should be the same on both sides, you do not need to individually change