Page 14 Modeling a Mountain Bike

Select the curve shown below and do a Revolve. Make the pointer snap to the center shown in the same image.

Then hit LMB, and go to the Top viewport and while holding Shift key to make the line straight, drag it straight upwards and hit LMB again.

Select the curve shown here:

Make a Revolve:

Repeat with the curves shown in the two figures below.

This is how the same curve should look from the right: