Standard Motor (STDM)
| Part No. | BMW Part No. | Description | Qty Req'd | Price US$ | |
| STDM 50 | NA | Crankshaft for 18mm Wrist Pin | 1 | $425.00 |
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| STDM 32 | NA | Piston 250 ccm with 18mm Wristpin / Rings Standard / 1st over 2nd over | 1 | $200.00 |
|
| STDM 35-36 | NA | Piston rings 1st over 68 mm 2nd over 69 | 1 | $45.00 |
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