Walk-behind trowels are available in a variety of models, including heavy duty, high speed trowels. The HD-48 4-11H 11 HP, Honda GX-340, 48" (122cm) extra heavy duty operates between 80-160 RPM blade speed. The C-4-2H 2.5 HP, Honda G100K2QA includes quick-pitch handles. The J-4-5H 5.5HP, Honda GX-160 and B-4-8H 8HP, Honda GX-240 come with 4 blades. Available options include QPH-JB QuickPitch handle in place of standard handle for JB HP units (add-on) and QPH-HD QuickPitch handle in place of standard handle for HD units (add-on).