Tired of fighting with linkage bearings and trying to get grease where it actually needs to go? The AfterBurner Engines Linkage Bearing Greaser makes greasing your dirt bike linkage and swingarm bearings easier, faster, and less messy. The tool allows you to push fresh grease directly through the bearing, helping push out old grease and contaminants instead of just working grease around the outside. Made for home mechanics, riders, and professional mechanics who want an easier way to service their bikes. Available Sizes 14mm • 15mm • 16mm • 17mm • 18mm • 19mm • 20mm • 21mm • 22mm These sizes cover many common dirt-bike linkage and swingarm bearing sizes. Check your bearing ID before ordering to make sure you get the correct size if not ordering master key set. How to Use Choose the correct size, attach your grease gun to the grease fitting, and slide the tool into the bearing. You can leave the spacer on the other side of the bearing as a stop, which helps keep you from pushing the tool too far in. Slowly pump fresh grease through the tool and bearing. The fresh grease helps push the old grease and dirt out. Once you're done, pull the tool out, wipe it clean, and put everything back together. Features 9 sizes from 14mm–22mm Makes greasing linkage bearings easier Helps push old grease and contaminants out Works with a standard grease gun Reusable Durable PETG construction Heat-set brass insert for better durability and long-term reliability Easy to store Designed for dirt-bike linkage and swingarm bearings Fits most ktm's, Yamahas, Hondas, Suzukis. Kawasakis. Built by a mechanic, for mechanics.