SW-Motech Bar back for Ø 22 mm handlebarBar back If you're having trouble reaching your handlebars comfortably, consider using a bar back. Our sturdy backs made from aluminum shift the handlebar upward and to the back. For the rider, that can mean a more relaxed, back friendly seating position, along with better control of the bike. The maximum displacement for your motorcycle can be found in the ABE. For 22 mm handlebars with a bore spacing of 32 38 mm Displacement of the handlebar 30 mm