03-1349-20B Off-set Front Pulley Inserts

Rivera Primo offset front pulley inserts provide custom builders with the necessary clearance to offset a transmission when installing wider rear wheel and tire assemblies. This specific 2 1/2-inch diameter insert is designed to fit Primo Brute III 1 3/4-inch and early style Brute IV 3-inch belt pulleys. Each unit is supplied with five countersunk screws and two dowel pins for secure installation. Rivera Primo is a leader in belt drive technology, ensuring these components maintain precise alignment under high torque. Use this insert in conjunction with a corresponding motor nut, special washer, and outside guide to complete the drivetrain modification.