NOTES FROM LUKE: The OFP Morpheus Rayven Flywheel Cage is a 3d printed cage designed for the Rayven and Rayvenfire. Guide sold separately. There are multiple flywheel spacings available. I do not recommend the 41.5mm/42mm tighter spacing unless you are familiar with the project, or intend to use the Blue Blasterparts wheels which are slightly smaller in diameter. Color may vary from image you will receive a random color based on what we have available in the 3d print shop.