Key: SW = Soft Wheel; HW = Hard Wheel
To run all soft (resin) wheels on the left side:
SW / 2 × 1" spacers and 1 × 1/2" spacer / SW / 2 × 1" spacers and 2 × 1/8" spacers / SW / Motor
Tip: You can substitute four 1/8" spacers in place of the single 1/2" spacer if you'd like a little more flexibility when fine-tuning the fit.
To replace the middle hard wheel with a soft (resin) wheel:
HW / 3" spacer / SW / 2 × 1" spacers and 1 × 3/4" spacer / SW
To run all hard (electroplated) wheels on the left side:
HW / 3.5" spacer / HW / 3" spacer and 2 × 1/8" spacers / HW / 3/4" spacer / Motor
Need extra spacers? CabKing wheel spacers are available in 1/8", 1/2", 3/4", and 1" sizes and can be purchased separately https://cabking.com/collections/machine-parts/products/cabking-wheel-spacers.