Mesin dan Performa dari Kawasaki Z125 PRO yaitu:
| Varian | Kawasaki Z125 PRO SE | Kawasaki Z125 PRO Standard |
| Konfigurasi Katup | SOHC | SOHC |
| Kecepatan maksimum | 120 kmph | 120 kmph |
| Rasio Kompresi | 9.8:1 | 9.8:1 |
| Busi per silinder | ||
| Launch Control | N | N |
| RPM torsi maksimum | 6000 rpm | 6000 rpm |
| Jumlah silinder | 1 | 1 |
| Sistem pelumasan | ||
| RPM Tenaga Maksimum | 7500 rpm | 7500 rpm |
| Konsumsi Bahan Bakar | ||
| Sistem Pendinginan | ||
| Sistem pembakaran | Digital | Digital |
| Katup Per Silinder | 2 | 2 |
| Torsi Maksimal | 9.5 Nm | 9.5 Nm |
| Diameter x langkah | 56 mm x 50.6 mm | 56 mm x 50.6 mm |
| Jumlah langkah | 4-Stroke | 4-Stroke |
| Jenis Kopling | ||
| Pipa Knalpot | Single Exhaust | Single Exhaust |
| Tipe filter udara | ||
| Kontrol Emisi |
