Size | Drive Ratio |
C (inch) |
Be-Cu | G.W. (g) |
Al-Cu | G.W. (g) |
EXM | EXM | |||||
ZB-16 | 1:16 | 1/2 | 1241AB-1002 | 2000 | 1241AA-1002 | 1800 |
ZB-58 | 1:58 | 1 | 1241AB-1004 | 6850 | 1241AA-1004 | 6200 |
ZB-68 | 1:68 | 1 | 1241AB-1006 | 8050 | 1241AA-1006 | 7300 |
ZB-78 | 1:78 | 1 | 1241AB-1008 | 8300 | 1241AA-1008 | 7500 |