Bicycle Software Package The Wheel Maker will help both professional and home mechanics calculate the spoke lengths needed for any hub and rim combination quickly and easily. The Bicycle Gear Calculator is a very powerful ... Cost: $29 Buy full version       Trial version       Publisher: Crazy Rides     Descriptions Bicycle Software Package: The Wheel Maker will help both professional and home mechanics calculate the spoke lengths needed for any hub and rim combination quickly and easily. The Bicycle Gear Calculator is a very powerful application for serious cyclists. It creates charts of the Gear Table, Gear Ratio Line Graph, or Gear Ratio Log10 Graph and will calculate Estimated Speed, American and Metric Standard Gearing.