The GX range is for people that much prefer to ride their bike than sit there looking at it

Blackburn's Outpost Seat Pack with Dry Bag is the answer

Valve Compatibility: Schrader / Presta / Dunlop

With a hammer

Half Inch Shaft (DPX2) - 5 different sized spacers

Oakley Airbrake MX Replacement Lens - Clear PDP|Option The GX range is forGenuine Oakley Airbrake MX Replacement Lenses. All Oakley lenses offer HDO Technology. One of the most advanced lens technologies in the game. They offer exceptional clarity across the entire field of view. Minimal refraction means you will get a true visual image of the trails ahead so your brain doesn't need have to work overtime. All with exception UV protection that black 100% of UVA, UVB & UVC rays and harmful blue light up to 400 nm.