http://www.thisoldtractor.com/gtbender/
Updated: 2011 Aug 20
Thanks to Izaak Bozof for sending me some additional information.
| Model | Year | Front Brake M/Cyl Clutch M/Cyl | Rear Brake M/Cyl Proportioning Valve | Front Brake Caliper / Right | Front Brake Caliper / Left | Rear Brake Caliper |
|---|---|---|---|---|---|---|
| 125WMX | 1987 to 1989 | 10.4620.80 | 10.4776.40 | - | 22.4709.10 | 22.4900.50 |
| 250WMX | 1987 to 1989 | 10.4620.80 | 10.4776.40 | - | 22.4709.10 | 22.4900.50 |
| 350/500 T4E, R | 1987 | 10.4620.30 | - | - | 20.4532.30 | - |
| 650 Al'Azzura | 1985 to 1987 | 10.3120.12 - 10.3464.04 (15 mm) or 10.2733.00 (13 mm) | 10.4166.10 | 20.2676.41 | 20.2676.40 | 20.2676.40 |
| 650 Elefant | 1985 to 1987 | 10.4620.23 - 10.4670.14 | 10.2933.50 or 10.3006.30 | - | 20.4603.10 | 22.4710.40 or 20.2842.80 |