Spank SPANK 359350 Vibrocore Wheelset. This fine tuned wheelset has been developed for World Cup DH racing and features stabilising Vibrocore technologyfor increased rider comfort and torsional strength. The rims feature unique profiles for an enhanced radial compliance and a lower weight on the front wheel. Plus, the massive 35mm outer width on each rim allows for a huge boost to traction stability, whether riding uphill or down Durable 3 Cross Spoke Pattern. This Spike hubset holds each J hook spoke tight in a 3 cross pattern for increased downhill durability and impact absorption. Plus, each wheel includes BeadBite anti burp hooks, which holds each tyre tight to the rim for a secure, comfortable riding experience Features RimAlloy Clincher Tubeless Ready Rim Width30 5mm inner, 35mm outer SpokesJ Hook, triple butted, 32H, 3 Cross Lacing NipplesBrass Hubset Spike Weight2 2kg 27 5", 2.26kg 29"Technology Vibrocore Vibrocore technology is injected into Spank Vibrocore products and dramatically reduces vibrations that can lead to hand and arm numbness, fatigue and arm pump. This additional technology also increases overall stiffness and fatigue life of the product. Vibrocore is one of the biggest innovations in Rim technology as it increases the radial compliancy, lateral stiffness and torsional strength while also damping vibrations from the trail. OohBahThe unique OohBah profile allows Spank to manufacture thinner walled, wider profiled, lighter rims without sacrificing strength or rigidity. Wider rims mean stiffer wheels and more tire spread, leading to greater traction and improved comfort, and tire performance. The "wave" shape of the OohBah inner tube adds strength and support to the vertical rim flange walls and prevent buckling. Normal straight or curved tube wells must be much thicker, and by default heavier, to offer the same support. BeadBiteAt an incredible range of pressures, BeadBite is the solution to keeping your tires burp free and fixed in place. BeadBite rim technology enhances tubeless use with tires of all types and with a greater range of air pressures. BeadBite rims have 6 rows of tiny ridges that run along the vertical and horizontal faces of the bead seats. These tiny teeth create air seals between the rim and tire as the bead conforms into them under air pressure. They dramatically increase frictional forces on the tire bead, reducing the beads' ability to move vertically or horizontally thus improving tire stability and reducing burps. The bead literally becomes trapped between the vertical and horizontal ridges, even at very low air pressures. Even in tubed applications, BeadBite rims tend to allow much lower air pressures with reduced risk of pinch flats BuySpank Wheels & Tyresfrom Chain Reaction Cycles, the Worlds Largest Online Bike Store.