- Allows the use of Dura Ace 2x chainrings with 5Dev 8-bolt cranks
- Chainring Bolt Pattern: Shimano 4 Bolt 110BCD for Dura Ace 2X Chainrings (will not work with Ultegra). Please note that this spider is cut to work exclusively with Dura Ace 2X Chainrings
- CNC machined in San Diego
- 73g
| Model | 8-Bolt Dura Ace Spider |
| Configuration | 2x |
| Direct Mount | 8-Bolt |
| BCD | 4x110mm |
| Color | black |
