O.E. style replacement 16T front sprocket for 77-78 Suzuki GS400 B/C, 80-82 Suzuki GS450E/L T/X/Z, 80-82 Suzuki GS450S T/X, 81-82 Suzuki GS450T X/Z, 82 Suzuki GS450TX-Z, 83 Suzuki GS450TX D, 84 Suzuki GS450L D, 84 Suzuki GS450E D & 86-89 Suzuki GS450L F/G/H/J. If you wish to order a different size sprocket to change your gearing, feel free to give us a call to order the size you desire.