| MODEL | MOUNTING INTERFACE | B.C.D | CHAIN LINE | MODEL NUMBER | MODEL NUMBER |
| S1-4 | 29T | 104 | 50 | S1-4-50G | S1-4-50 |
| S2-4 | 53 | S2-4-53G | S2-4-53 |
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PRODUCTS
| MODEL | MOUNTING INTERFACE | B.C.D | CHAIN LINE | MODEL NUMBER | MODEL NUMBER |
| S1-4 | 29T | 104 | 50 | S1-4-50G | S1-4-50 |
| S2-4 | 53 | S2-4-53G | S2-4-53 |
