HI I was looking at your Volant wheels. I just started cycling and have a used cyclocross bike with 32-spoke wheels Alex rims and 105 hubs. I have been riding to school 10-15 km 3 days a week when it's light out. Will the Volants make me go noticeably faster? Also they have 20-24 spokes so is it safe and will they last very long? What is the average lifespan? I weigh 145 lbs. I have read very good reviews of these wheels. Thanks