This 7/16 diameter, flat top, runner is designed to bolt onto OEM ski. This carbide will give more positive cornering control, increasing as the ground surface gets harder. Very effective on ice, making your ride safer on those frozen spring trails. 1-1/2 wearplate at the end and hardweld in front. Bolt size 3/8 -16. Trail Runners - 4 of 60° carbide available in the following models: 130, 135, 250, 440, 446, 470, 640 and 644. Trail Runners - 6 of 60° carbide available in the following models: 130, 135, 250, 440, 446, 470, 640 and 644. Trail Runners - 8 of 60° carbide available in the following models: 130, 135, 250, 440, 446, 470, 640 and 644.
Decrease darting of the skis.
Two separate lines of carbide contact the snow surface.