| Shimano's Group Heirarchy cheapest to best | ||
| Mountain | Road | Pre-1997 Road |
| Acera | Sora | RSX |
| Alivio | Tiagra | RX-100 |
| Deore | 105 | 105SC |
| Deore LX | Ultegra | 600 |
| Deore XT | Dura-Ace | Dura-Ace |
| XTR | ||
| SRAM Mtn Group cheapest to best | ||
| 2:1 Shimano Compatible | 1:1 | |
| TRX | 3.0 | |
| MRX | SX4 | |
| Centera | X-5 | |
| Attack | X-7 | |
| X-9 | ||
| X-0 | ||
Groups |
| Mirage |
| Veloce |
| Daytona |
| Chorus |
| Record |