SIDI introduced the Heel Security System®, first in a prototype Genius 6.6
ridden to victory in the Giro d’Italia and then as a technical feature on four
of SIDI’s top production shoes. This elegantly simple solution addressed a
critical aspect of performance fit, virtually eliminating power-robbing heel
Adjustable HSS® reinforces the top of the heel cup, and adjusts to securely
close the back of the shoe around the rider’s heel, just above the calcaneus
(heel bone). The Adjustable HSS® provides 6 mm of lateral adjustment on either
side of the heel, improving power transfer and comfort by eliminating heel lift.
Turning the HSS® adjustment screws counterclockwise tightens the heel retention
device; a clockwise turn of the screw opens up the heel area. Each side of the
heel can be adjusted independently for an absolutely perfect fit.
SIDI small parts, the Adjustable HSS® is replaceable, and also available as an
aftermarket upgrade for some 2007 thru 2009 SIDI models.
to models with the non-adjustable Heel Security System®