IDT replacement rear wheel. Anti reverse clutched wheel for getting kick when rolled back.

Diameter: 67 mm

Width: 45 mm (43mm for surface running width)

Axle outside length: 74 mm

Price is per wheel. 

Note for people with older Pro-Ski or Swix C2 rollerskis: Outer width with wheel spacers measures 52mm, so these will work to retrofit onto old Pro-Ski classic rollerskis that use the old C2 wheels.