Hub performance is key to a great ride! As with so many of our other products, we are in a constant state of improvement. Now on version three of our Alaska edition hubs, we have drastically reduced weight and friction, while increasing stiffness and durability. Now available in many hub configurations: 197/190 rear, and 150X15, or 135X15 front. We use top of the line enduro bearings with a grease that is rated to -40°, special seals that stay flexible in the extreme cold.