In 1966 Mr. Dino creates the first ever mono-filament line closure system with a rotor buckle for
use on the ski boots of the Italian Olympic Champion Marielle Vautcel. In 1988, 22 years after
inventing the mono-filament line closure system with a rotor buckle, Mr. Dino patents it for use
in a cycling shoe. The patent covers a closure placed on the heel as well as on the instep.
Three adjustments are shown: tightening across the instep, across the forefoot, and around the heel.
The latest version of that system, SIDIís NEW Tecno 3 buckles, adjust fit across the forefoot
and the toe of the shoe. The precision ratchet closure mechanism is easily adjusted using two
buttons that can be pressed to incrementally loosen the buckle, one ratchet tooth at a time.
Lift and turn the center buckle to tighten the shoe. To open completely, push on both buttons
while pulling on the soft instep closure system. SIDIís famously reliable and replaceable closures
are improved by an ALL NEW proprietary SIDI Wire material, an extremely supple braided synthetic
material thatís very low friction, for completely non-binding action and extremely even pressure
distribution across the closure.
Like most SIDI small parts, the Tecno 3 Buckle® is serviceable and replaceable.