The latest versions of all the "big balance wheels" that Sailrite has developed over the years. Many feature a hand crank built into the rim, and a cogged belt drive system with the track on the wheel all the way out to the rim. Many of the Sailrite machine now feature the "Posi-Pin" clutch system which locks the balance wheel on the sewing machine (past models of our machines use set screws built into the Monster Wheel to lock the balance wheel on its shaft).
