The CW5’s can be used on any pipe with an outer diameter up to 2 inches (50mm).
The diameter of each wheel is 50mm (2 inches) and a width of mm (inches). Each wheel comes with 2 installed bearings with a 8mm bore (you can use a 5/16” bolt).
This combination will offer better stability on a wide variety of track sizes. This listing is for 4 wheels with included bearings. If you need a different quantity please contact us.