Rossignol FKS 140 Dual WTR Binding. The award winning FKS is the most trusted and reliable alpine binding in skiing. The all new FKS 140 DUAL B115 is an elite level Dual Standard freeride binding with an 5 14 indicator range and 115mm brake. Compatible with both WTR Walk to Ride rockered soles and Alpine standard boot soles, the new FKS DUAL allows quick, easy adjustment between standards with a consistent, natural stance. The reinforced Full Action toepiece combined with the classic FKS turntable heel delivers maximum power transmission, shock absorption and the longest elastic travel on the market to provide more reliable retention and consistent release. The FKS 140 DUAL B115 is designed for aggressive all mountain, freeride, and freestyle skiing and can be mounted on skis up to 115mm underfoot.