These are the same premium wheels used in our ultra-premium 4th wheel outside idler kit but with standard bearings installed.  The bearings are 6004-2RS with a 20mm inside diameter and 12mm width making for an easy install on many brands and models of snowmobiles.  Contact us if you are unsure of your fitment.  We can also ship these wheels with a 25m ID bearing installed.  Be sure to select the proper option required.
 
The wheels have powder coating accent color and are equipped with rubber around their outer edge. 
 
The rubber on these wheels isn't glued on like some of the other guys, that simply just doesn't last. Our rubber fits into a machined groove in the wheels kind of like a car tire.  The rubber allows your wheels to be run with a studded track, provides protection in low-snow conditions and  will not get ice build up, which can happen if you don't have rubber on your wheels. Our supplier has been making billet wheels with rubber since 2008 and has had great results, having many customers that have over 10,000 km on the wheels with no issues with the rubber failing.
 
Sold per each.