Up for sale is JT 1990-1995 ZX750 Ninja ZX-7 Kawasaki REAR SPROCKET STEEL 38T-530 KAW JTR488.38. The vendor part number is JTR488.38. Please read the title to know what is for sale. Catalog Description� TOP QUALITY AT ECONOMICAL PRICES Made exclusively from the finest Japanese 545C high carbon steel Heat treated and hand finished to meet or exceed O.E.M. standards Outlasts any mild steel or surface hardened sprocket as much as two or three times over .