Spoke Calculator with Paired Holes

We’ve finished a significant round of enhancements to our online ebike spoke calculator application to better serve the needs of people lacing hub motor wheels.

• Dimensionally accurate real time drawing of the motor, rim, and selected lacing pattern, so you have confidence to see that the hub/rim choices are correct
• Measurement of the spoke angle at the rim to indicate possible stresses at the nipple and threads.
• Allowance of paired spoke holes. Many large diameter hub motors have spoke holes grouped in two rather than uniformly distributed, but there are few tools out there to help calculate the appropriate length.

Check it out. We've added a number of new motor sizes (like the Magic Pie3, Crysatlyte Crown, Heinzmann PRA etc.), and are open to add additional suggestions via the related endless-sphere thread.