New for 2011.  Great intermediate racket with racket stiffness. Comes in a cool gold color.  For players looking for a lightweight fast racket.

NANOSPEED 850 FEATURES:

NANOSCIENCE: Yonex Nanoscience achieves precise control over racquet functions at the molecular level. It establishes a high-performance molecular bond of the fullerene and carbon nano-particles, creating an ultra-lightweight racquet that's thinner, stronger and more stable than an ordinary racquet for maximum power and speed from swing energy.

ISOMETRIC: The Isometric Square Head Shape equalizes the length of main and cross strings in the stringbed, enlarging the sweetspot for more consistent accuracy even on off-center hits.

BUILT IN T-JOINT: Moulded deep into the layers of graphite where the frame connects with the shaft, the Yonex built-in T-Joint creates a durable and high-strength one-piece frame that is torque-free.

DELTA POWER FRAME: Yonex applied the technologies of Aerodynamic Shape and Box Shape to the Delta Power Frame, which creates a stable and solid hitting face without sacrificing its power.

ELASTIC TI: Elastic Ti provides the high elasticity needed for structural high strength and a powerful rebound effect. At impact, Elastic Ti resists deformation, stretching then recovering its shape quickly to launch accurate hits charged with the full energy of the swing.

   *      Flex: Stiff
   *      Frame Composition: H.M. Graphite, Carbon Nanotube, Super HMG
   *      Shaft Composition: H.M. Graphite, Carbon Nano Tube
   *      Weight: 3U (85.0-89.9g)
   *      Grip Size: G4
   *      Color: Gold
   *      Bag: Full Racket Cover