1. Do you still make the Rev X? Discontinued in 1999 with a small additional run of 150 or so in 2002. No longer available. 2. Why did you discontinue the Rev X? Technology marches on. The new wheels are superior in every way. 3. Why do my brakes pulse? Lateral and vertical runout will not usually cause strong brake pulsing unless the lateral runout gets to more than .150". Carefully measure the width of the outer edge of the rim at every spoke and between every spoke. Record the dimensions and serial #. The variance from widest to narrowest point should be no more than .014" with tire inflated to 125psi or .012" without tire. 4. Is my older carbon wheel safe? As with any carbon bicycle component, inspect periodically for cracks, gouges, separations in the carbon. Discontinue use if any of these conditions are found. 5. What are the tolerances for trueness? All Spinergy wheels are checked to be within these tolerances before shipping. Lateral runout: .015" Vertical runout: .015 Rim width variance: .012" (measured without tire) 6. Do you have a trade-in for old wheels?

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