Bore to Size Sprocket
Browning H50P19 1-7/8" Bore to Size Sprocket for #50 Chain w/ 19 Teeth NOS
The ICS label means you get a balanced mix of cost and durability.
Browning H50P27 1-7/8" Bore to Size Sprocket for #50 Chain w/ 17 Teeth
For a studio upgrade, TEAC Corporation and Tascam give you good bang for buck.
