This new aftermarket rear sprocket is believed to replace 409-25438-00for Yamaha TZ750 A-D, 1974-1977. 74mm centre hole diameter, 5 x 10mm
bolt holes, 90mm PCD. Recessed on the outside. 7.3mm thick in the centre.
Suits # 530 chain size.
Can post overseas. Contact me for A quote.