Brake Drum 37-1498.W1498 Bolt 26 TPI 1955-70Please note, when fitting the sprocket, the paint needs to be cleaned around the fitment area and the threads cleaned. 1/4" 26 TPIThe bolts to fit this sprocket are 37-0064
BSA/Triumph Ignition Timing Tool UNC 69- 1/2" x 13TPI. Top Dead Centre Tool D1859,60-1859,61-7022,D2195,60-2195 D572,60-0572,D2683,60-2683. 61-7020. 61-7021