The EBC brake pads have great predictable stopping power, and they benefit from low disc abrasion and dust. They are brake rotor friendly, and slower to brake in the wet. These organic brake pads are ECE R 90 brake safety test approved and fully TÜV tested. EBC Organic Brake Pads FA141 For Front: Kawasaki: 1988 GPZ 400 R D4; 1987 GPX 400 R (ZX 400 F1); 92-95 ZR 400 D1/D3/D4 Xanthus; 1988 ZX-4 (ZX 400 G1/G1A/G1B); 94-04 GPZ 500 S EX 500 E1-E10. Rear: Kawasaki: 1988 ZX-4 (ZX 400 G1/G1A/G1B); 91-93 ZR 550 B2/B3 Zephyr. IMPORTANT: Picture is for indication purpose only. To visually check the kit, you can visit EBC website. The bought kit will match your motorcycle.