Aerodynamic Wheel Disks - For your Bike

Step 3 Cut and Wedge

Now it's time to cut. Cut out your circle, then drill out your center hole (if applicable).

Now, we want to make a cone to follow the shape of the spokes as the move fro rim to hub. To do so, we need to cut out a pie shaped wedge.

First, cut out a straight radius. Now, place your disk on the wheel and squeeze the plastic around to form a cone. Mark where the plastic overlaps with a marker.

Next, cutout the marked radius. Check your cone shape against the wheel by taping the plastic together to keep the conical shape. If more needs to be trimmed - you can always go back and trim more. Just remember, the more you trim - the larger the cone.