IMS Products Flightline Motorcycle Shift Levers have the unique folding ability to reduce gear shifter shaft breakage on the trail, shifting Yamaha YZ, IT, XT, TT dirt bike transmission gears with smooth precision. Avoid the costly repairs associated with a broken shift shaft or prematurely worn shift shaft seal that often results in having to split the engine case, which costs hundreds or even thousands of dollars. Instead of snapping the shift shaft, the IMS Products Flightline Dirt Bike Shift Lever folds, absorbing the impact from a crash, rocks, trees, roots and ruts rather than simply snapping like OEM shift shafts often do.