Stihl FS 91 Bike Handlebar Line TrimmerSTIHLs FS 91 trimmer bike handle design adds greater comfort and leverage, thanks to its redesigned rubberized grips. The trimmer also features one touch stop and a simplified starting procedure enabled by the semi automatic choke lever. Its low emission engine is paired with a larger fuel tank, delivering 30% longer run times when compared to the FS 90. The engine also includes improved air filtration and STIHL exclusive IntelliCarb technology for