SE Racing Dirt Jumper Hubset - 3/8" axles - 36H - Black 100/135mm 27.2mm 50-18 inner tube with a

50-18 inner tube with a TR-4 Threaded Schrader valve

5mmOuter Width: 32mmProfile Height: 24mm

It will work with Disc Brakes only (Post mount)

This tire only works on OS-20 (451mm) rims

and one that furthers their reach into BMX racing

SE Racing Dirt Jumper Hubset - 3/8" axles - 36H - Black 100/135mm 27.2mm 50-18 inner tube with aRear 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 Upgraded Sealed Bearing Rear OLD 135mm Sealed Bearing Color: Black *These are