Atomic Redster Q5 W/Em10 GwAtomic Rester Q5 with EM 10 bindings Dimensions = 123 76. 5 107 (169 cm size) Sidecut radius = 15. 3 meters (169 cm size) The Atomic Redster Q5 is a great first ski when looking for a performance ski that can handle whatever on trail conditions the mountain throws at you. Its very sophisticated multi radius sidecut and 77mm waist combine to allow the Redster Q5 to make quick, snappy short radius turns as effortlessly as long carving arcs across the