SE Racing Dirt Jumper Hubset - 3/8" axles - 36H - Gold Anodized 100/135mm 10" It uses Mineral oil for

It uses Mineral oil for fluid

They are extruded and CNC-machined 6061 T-6 alloy construction

It has sealed cartridge bearings

The non-drive side crank arm features a 2-bolt pinch system for added strength

Inner Width: 26

SE Racing Dirt Jumper Hubset - 3/8" axles - 36H - Gold Anodized 100/135mm 10" It uses Mineral oil forRear hub is a single speed freewheel that works with standard single speed freewheels 16t and larger (not included) and 6 bolt disc brake rotors. This is the hub that is found on the SE Big Flyer HD and Big Ripper HD but will work on most DJ bikes offering a low price, quality option to upgrade entry level dirt jumpers. Material: Aluminum Axle: 3 8" nutted Front OLD: 100mm Loose Ball Rear OLD 135mm Sealed Bearing Color: Gold Note: This part was