Aside from the pulleys bought at the hardware store, 100% bike parts.

1. cut seat post

1. Yakima fork mount --- will use for other types of cameras --- and for added weight.

1. Azonic QR hub hardware --- (as above)

2. statnuts (not shown in photo) -- slammed into seatpost so l could bolt additional hardware

2. bike rack support beams

1. GoPro

4 random bolts -- one with the circle end --- will use that for a guild wire if l create a way to pull the unit back to the start.

 Sweet idea I need to make one of these

 NICE!