70x45 mm Swenor Fibreglass Classic replacement front wheel. Comes complete. Price per wheel.

Total width of hub with wheel spaces is 49.9mm. Hub is 39.2mm wide, and each wheel spacer is 5.35mm. 

To retrofit onto IDT classics, request from us 1mm spacers to put on each side in addition to other wheel spacers ($5 extra for all these).