YSS G Series Vespa Sprint/Primavera

HREAD SPRING PRELOAD
Is a high-performance gas shock absorber with YSS standard that has an adjustable Preload Spring and worthwhile to use.

YSS RacingThread Spring Preload or adjustable spring screw. By threading the cylindrical shock absorbers, user can turn the preload to fine tune the spring and tighten a provided bolt to fix the ring in its position

FRONT (VK302-230T-03)
Technical Info
YEAR:2017-2019
PRODUCT GROUP:Ecoline
SHOCK TYPE:FRONT MONO SHOCK
PRODUCT TYPE:Bottom External Reservoio Piggy Back Gas Shock
ABE:Yes
LENGTH:230 (MM.)
WEIGHT:1.740 (G.)
TOP:STUD M10 (MM.)
BOTTOM:SB 35/M8 (MM.)
SPRING:38/40-17-25-200 (MM.)
PISTON SIZE:30 (MM.)
SHAFT SIZE:12 (MM.)

REAR (OK302-360T-02)
Technical Info
YEAR:2016-2019
PRODUCT GROUP:Ecoline
SHOCK TYPE:REAR MONO SCOOTER SHOCK
PRODUCT TYPE:Bottom External Reservoio Piggy Back Gas Shock
ABE:Yes
LENGTH:360 (MM.)
WEIGHT:2.625 (G.)
TOP:STUD M10 (MM.)
BOTTOM:10x30 (MM.)
SPRING:46-25-35-260 (MM.)
PISTON SIZE:30 (MM.)
SHAFT SIZE:12 (MM.)