Abstract: The snowmobile ski edge includes a main body having a plurality of mounting holes formed on a mounting face of the main body and a plurality of raised, breaker rails formed on the opposite face of the main body. The breaker rails are spaced across the width of the main body and break up ice and snow in front of the snowmobile skis to easily form new paths, which substantially reduces darting. Each breaker rail is angled to form a leading breaking face and a trailing face extending towards the back of the main body. Carbide inserts are disposed in grooves on both the breaking and trailing faces to strengthen and increase wear characteristics of the breaker rails. The main body includes sloping sides, which together with the breaker rails form channels to funnel broken ice and snow towards the back and reduce drag.

Abstract: The snowmobile ski edge includes a main body having a plurality of mounting holes formed on a mounting face of the main body and a plurality of raised, breaker rails formed on the opposite face of the main body. The breaker rails are spaced across the width of the main body and break up ice and snow in front of the snowmobile skis to easily form new paths, which substantially reduces darting. Each breaker rail is angled to form a leading breaking face and a trailing face extending towards the back of the main body. Carbide inserts are disposed in grooves on both the breaking and trailing faces to strengthen and increase wear characteristics of the breaker rails. The main body includes sloping sides, which together with the breaker rails form channels to funnel broken ice and snow towards the back and reduce drag.

Abstract: The quad parabolic snowmobile ski is an elongated body having a top side, a bottom side, a tip at the front end, a rear end, a pair of symmetrically opposed ski parabolic cutting edges disposed longitudinally along the bottom of the ski, and a keel. The keel is attached to the bottom of the ski and has a central median ridge, i.e., a keel rail, a substantial portion of which protrudes below the bottom of the ski to form a central and longitudinal point of contact with the snow. The keel defines symmetrically opposed snow-funneling channels along the opposite sides of the central median ridge. Varying radii of curvature of the channels form parabolically-shaped channel outer sidewalls. Symmetrically opposed keel parabolic cutting edges are formed by contouring a keel body width to follow the contour of the parabolic shaped outer sidewalls at a constant cutting edge width.