High-Quality Runners Made to Fit SLP Ultra-Lite™ Skis Perfectly SLP Runners are the only recommended runners for SLP Ultra Lite™ Skis. They are shaped properly to match the SLP patented keel design for best performance and dependability. When considering a runner for your SLP Skis, keep in mind that a 6 carbide SLP Runner will corner much like 8-10 of carbide on a conventional ski. 6 carbide is maximum length recommended. Long-Life Trail Carbide: 4 x 75° carbide with wear pads front and rear and hardweld filler in non-carbide areas on 7/16 host bar. The Ultra-Lite™ keel design is so effective, less carbide length can be used than flat-keel skis with better results. Aggressive Trail & Racing Carbide: 6 x 60° carbide with wear pads front and rear and hardweld filler in non-carbide areas on 7/16 host bar. The Ultra-LiteTM keel design is so effective, less carbide length can be used than flat-keel skis with better results.