A More Robust KLX®140L for Larger Riders With its 17 inch front and 14 inch rear wheels, the Kawasaki KLX®140L holds plenty of appeal for both young and old, but it also incorporates all of the standard 140’s many off-road-worthy features, yet wraps them in an even beefier package that will stand up to the demands of taller and more aggressive off-road riders. The 140L not only features larger 19 inch front and 16 inch rear wheels and a taller 31.5 inch seat height, its suspension is also more performance-oriented, featuring an honest-to-goodness reservoir-type shock that larger and more experienced riders will quickly appreciate.