Elite Water Ski Control With Effortless Speed This Water Ski Package Is Best For: Course Hunters: PVC core delivers instant energy transfer so you can build angle quickly and stay early and wide at every buoy. Precision Drivers: Spread Tow Carbon creates a lighter, snappier feel that boosts responsiveness for skiers who want tournament-level edge changes. Performance Junkies: Double Carbitex Vector BOA boots give micro-adjustable fit and powerful connection that translates into tighter, cleaner turns. Lake Lovers: The Senate shape provides smooth stability that builds confidence and helps you create unforgettable morning and evening rides with friends and family. Radar Lithium Senate Size Chart Length Width Surface Area Weight Range Fin Setup 65 in 6.94 in 350.57 sq in Up to 170 lbs Adjustable Aluminum Fin 67 in 7.16 in 378.85 sq in 160 to 200 lbs Adjustable Aluminum Fin 69 in 7.37 in 401.81 sq in 180 to 220 lbs Adjustable Aluminum Fin 71 in 7.37 in 413.43 sq in 200+ lbs Adjustable Aluminum Fin The 2026 Radar Lithium Senate is the ultimate do-everything slalom ski, blending open water forgiveness with high-end course capabilities. Its PVC core and Spread Tow Carbon construction create a lively, efficient ride that accelerates cleanly and carves with precision at 28 to 34 MPH. Paired with the Double Carbitex Vector BOA boots, every movement transfers instantly for powerful edging and smooth, predictable turns. Built for skiers who want one ski that excels everywhere, the Lithium Senate brings Radar&';s handcrafted feel to every glide across glassy morning water.