Gaerne sincro mtb spd shoestested with sports best professional athletes the sincro mtb shoe from gaerne represents the highest achievement in terms of technology innovation and function the sole is stiff and lightweight with a tread that is highly resistant to abrasion and wear the profile allows optimal hold traction and instant mud shedding an added two threaded holes to fix removable front studs improve traction on variable and muddy terrain featuresair ventilated systemcomfort fit