Fly Sion BMX Bike 2019The 2019 Sion was built as an all around machine, and Fly have made some very subtle geometry tweaks to make it feel right at home anywhere and on any terrain. The rear end is a very comfortable 13. 4" and the forks have been given a slightly steeper offset. Fly have chosen Courage Adams popular Pearl White colorway to go with all black components & If that doesn't work for you, the Flat translucent black with the new titanium coloured parts package