Crank Arms & Spider
AssemblyThe forged or carbon structure that is simultaneously the drivetrain lever and the sensing spring: its elastic deformation under load is what the gauges read, so its stiffness is part of the calibration. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Crank Arms & Spider
5 top-level lines as of r131871| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Drive-Side Arm | pmc-drive-arm | 1× | 1 | · | part |
| 2 | Non-Drive Arm | pmc-nondrive-arm | 1× | 1 | · | part |
| 3 | Instrumented Spider | pmc-spider | 1× | 1 | · | part |
| 4 | Pedal Inserts | pmc-pedal-inserts | 2× | 2 | · | part |
| 5 | Preload Collar | pmc-preload-collar | 1× | 1 | · | part |