Used to read off the bolt circle diameter or BCD of 4 & 5 arm cranksets so you can swap out chainrings.
| Arm.SLDPRT | 75.3KB | |
| Arm.STL | 30.6KB | |
| Assembly.SLDASM | 703.3KB | |
| Assembly.STL | 2.0MB | |
| Body.SLDPRT | 2.7MB | |
| Body.STL | 1.7MB | |
| Body_BACKUP.SLDPRT | 3.1MB | |
| Body_REFERENCE.SLDPRT | 687.7KB | |
| Point.SLDPRT | 107.1KB | |
| Point_LONG.STL | 16.5KB | |
| Point_SHORT.STL | 17.5KB |
