The rear axle is hollow and can accommodate sliders like the ones R&G Racing sells for 2013-2014 Zero models, or this for later models including FX.
- ¼" × 36" all thread rod ($2.27)
- ¼×20 lock nuts, 4 ea. ($2.36)
- M10×1.25 40 mm bolts, 2 ea ($1.82)
- tried drilling the stock bolts but they beat me so I bought these and drilled holes for safety wire.
- Not sure why I couldn't drill the OEM bolts, could just be crappy bits?
- ¼" washer, 4 ea. ($2.46)
- Blank skateboard wheels, 4 ea. ($12.70)
- Reference
- rear axle slider how-to