- Prime 9 Technology for wide range without complexity
- Wider chain is strong and durable
- 9 speed chain has outer width of normal 9 speed but a narrower inner width to match 10/11 speed narrow-wide chainrings. Compatible with most 10, 11, and 12 speed chainrings as well as BMX 3/32" chainrings and cogs
- 8 speed chain has outer width of normal 8 speed but a narrower inner width, optimized for use with Box Four Narrow/Wide chainrings
| Model | Box Two Prime 9 |
| Speed | 9 |
| Links | 144 |
| Color | Nickel |
| Package | Each |
