ShockStop Seatpost Spring Set wheel/frame lock to detect cars and alert

to detect cars and alert drivers

Bottom-Out: Progressive rubber bumper

for less expensive chainring replacements and reduced waste

Belgium rims feature a welded rim joint

Carbon fiber arms with structural foam core provide excellent strength-to-weight

ShockStop Seatpost Spring Set wheel/frame lock to detect cars and alertReplacement springs are an ideal upgrade if you need a bit more stiffness from your ShockStop Suspension Seatpost. The stiffer springs provide a more topped out feel, or if you're at the upper end of the weight range and want more support. Approximately 25% more stiffness than the standard spring set Includes two steel springs (one outer and one inner spring) Only compatible with the 27. 2mm diameter versions of the ShockStop Endurance Seatpost (both