Extreme Max MDM2-RW Red M2 Snowmobile Monster Dolly Monster wheels - 20 inch diameter, 40 inch wide wheels with reinforced spokes mounted on double heavy-duty oversized bearings Monster frame - leaves room for windshields, and handlebars with risers, hooks, and mirrors and keeps your sled perfectly balanced Monster strength - heavy gauge steel with powder coat finish, made to maneuver the biggest sleds in shop or snow and come back for more Monster features - adjustable lift bars with dual lift points offer maximum lift and perfect fit; extra-wide adjustable lift strap optimizes weight distribution Monster warranty - 2 year replacement warranty