740110 Belt Kit 1 1 2 Wide 11MM Pitch Electric Start Includes Idler

This 11mm primary belt drive kit from Belt Drives LTD is engineered for Big Twin and FX models, offering a heavy-duty tooth profile that many mechanics prefer for its durability. The kit utilizes a 31-tooth front engine pulley and a 47-tooth rear clutch pulley to deliver smooth power transfer. For bikes equipped with an aluminum inner primary, BDL includes a specialized idler to keep belt tension precise. On models with a traditional tin primary, you can easily set the tension via transmission adjustment. By upgrading to this 11mm system, you gain a robust, low-maintenance primary drive that handles the torque of a Big Twin with ease while providing a clean, oil-free operation.