Spank 350 vibrocore boost rear wheelthis mtb rear wheel features a unique profile with low sectional profile and a wide width, which adds radial compliance'. '.strtoupper('t')his means that you'll enjoy its lateral stiffness and superior traction as you ride across bumps at speed on your mountain bike'. '.strtoupper('s')pank has also equipped this boost spaced rear wheel with vibrocore technology, which reduces harmful vibrations'. '.strtoupper('t')his allows you to enjoy a smoother riding experience, while its clever technology increases the rim's longevity.high performance wheel with internal vibration damping, ideal for dh and freeride.unique profile with low sectional profile height and wide width, which adds radial compliance, while keeping high lateral stiffness.improved radial compliance for better traction over bumps and chatter, while reducing negative feedback to the rider'. '.strtoupper('p')erformance and comfort enhanced.vibrocore inner well, reduces the transmission of harmful vibration frequencies, meaning less vibration for the suspension and rider, also increasing the fatigue life of the rim.30mm internal width extremely versatile, fitting tyres from 2.0” to 2.6” perfectly, and even allowing size tyre use, without negative squaring off of tyre profiles.features use mtb, dh hole count 28 axle 12x148mm boost type rear wheel erd mm etrto mm 27.5 564 584x30.5 29 601 622x30.5 rim dimensions id mm 30.5 od mm 35 spokes j hook, tripple butted 2.2 1.8 2.0, brass external nipples tubeless tubeless equipped tape and valves included valvef v presta configuration 28h 3cross lacing technologies vibrocore, radial compliance, torsional strength, lateral stiffness, beadbite anti burp, oohbah inverted inner wallbuy spank wheels tyres from chain reaction cycles, the world's largest online bike store.