From Unofficial Zero Manual
The swingarm supports the rear wheel and pivots around the motor centerline.
- The swingarm joins to the frame doublers via large diameter bearings and a kind of bracket that it bolts to.
- The rear shock connects to the right side of the swingarm crosspiece, on the hump of an arch, making the swingarm asymmetrical.
- The swingarm has threaded holes (M8x1.5mm pitch) for rear stand spools.
- The swingarm supports the rear axle with an adjustment slot for belt tensioning and alignment.