TECNO-3 SYSTEM It allows to close the shoe in all its length, adapting the upper to the shape of the foot and thus obtaining a personalized fit. The reliable closing systems Sidi, completely replaceable, have been improved thanks to a new type of cable, which allows fast adjustment with extreme ease. TALLO SIDI Reinforced heel that stabilizes and supports the heel. Anatomically shaped plastic, reduces the slip of the heel and provides greater transfer power. It gives more security in case of fall. SUCH MTB COMPETITION The sole, designed for this specialty, can be equipped with two ramps on the tip to face arduous and muddy traces. The ramps are sold as a spare.