The Web Store +3 BT30 2 Step Pulley 25idpulley2stp $69.00 In stock Quantity: 1 Add to Bag Product Details FREE SHIPPING (USA only, international please contact us) Pulley for the BT30 headstock. The ID is 25.02mm with a 5mm keyway. Major step diameter is 79mm and minor step diameter 46mm. The belt profile is J with 5 ribs. Save this product for later Favorite