Spank 359 Vibrocore Boost 27. 5" Wheel Designed tough so you can ride harder You can now go bigger and harder than you have ever before with the new Spank 359 Vibrocore Boost 27. 5" Wheel. Built specifically for downhill racing, the 359 Vibrocore Boost Wheel has a radial compliant design that adds traction, reduces wheel deflection, and eliminates negative feedback without compromising strength or lateral stiffness. Featuring Vibrocore technology, the inner core of the rim reduces vibrations, which in return helps to reduce rider fatigue and increase rim fatigue life and torsional strength. The 30. 5mm inner rim width allows for the fitting of larger tires up to 2. 6". Features Spank Hex Rear Hub offers 3. 5 degrees of engagement Vibrocore Built-in vibration damping system Low sectional profile height Adds radial compliance while keeping high lateral stiffness and torsional strength 30. 5mm inner width Allows versatile tire fitting from 2. 0" to 2. 6" Unique front and rear profiles enhance radial compliance and reduce weight on the front wheel while increasing responsiveness and durability on the rear SPECIFICATIONSWheel Size27. 5"Materialaluminum Outer Width35mm Inner Width30. 5mm Rim Height19mm Spoke Drilling32h Valve Type Presta Tubeless Yes Tire Type Clincher Brake Compatibility Disc (6-bolt)Front Axle Boost 15x110Rear Axle12x148Intended Use DH, Enduro Approximate Weight2186-2200g for a pair | Spank | 359 Vibrocore Boost 27. 5" Wheel | Black | 32H, Rear, 12X148, Sram Xd | Aluminum