Part# S12R40PO90WR23XX SPECS Fork Type: Rigid Wheel Diameter: 4" Wheel Tread Width: 1-1/4" Wheel Type: Polyolefin Wheel Durometer: Shore D 70 Bearing Type: None/Plain Bore Fastening Type: Top Plate Top Plate Size: 2-3/8" x 3-5/8"

Bolt Hole Spacing: 1-3/4" x 3"

Bolt Hole Size: 5/16" Temp Range: -20° to 180° F

Brake Type: None