SRAM's TT Chainrings are stamped from 7075 aluminum for low weight and excellent strength. The teeth are ramped and pinned for precision shifting, too.
| Option | Barcode | Manufacturer's Part Number | Vendor Number |
|---|---|---|---|
| 53T | 00710845665837 | 11.6215.198.020 | QBP-CK5832 |
| 54T | 00710845665844 | 11.6215.198.030 | QBP-CK5833 |
| 55T | 00710845665851 | 11.6215.198.040 | QBP-CK5834 |