2001-2002 Honda RS250

| F-12 EXPANSION CHAMBER | |||||
| NO | PART NO | DESCRIPTION | 2001 | 2002 | REMARKS |
| 1 | 18310-NXA-000 | EXPANSION CHAMBER COMP,.NO1 | 1 | 1 | |
| 2 | 18320-NXA-000 | EXPANSION CHAMBER COMP,.NO2 | 1 | 1 | |
| 3 | 18326-NXA-710 | STAY, CHAMBER | 1 | 1 | |
| 4 | 18330-NXA-000 | SILENCER ASSY., R | 1 | 1 | |
| 5 | 18332-KS6-000 | SPRING, EXHAUST PIPE | 4 | 4 | |
| 6 | 18332-NXA-000 | INNER COMP., SILENSER | 2 | 2 | |
| 7 | 14539-KCZ-300 | TUBE, TENSIONER SPRING | 4 | 4 | |
| 18333-ND4-760 | TUBE, SPRING | 4 | - | ||
| 8 | 18334-KA3-830 | RUBBER, SILENCER | 2 | 2 | |
| 9 | 18336-KS6-700 | COLLAR, SILENCER MOUNT | 2 | 2 | |
| 10 | 18336-NF5-761 | GLASS WOOL, L | 2 | 2 | |
| 11 | 18340-NXA-000 | SILENCER ASSY., L | 1 | 1 | |
| 12 | 18344-NXA-300 | BODY, SILENCER | 2 | 2 | |
| 13 | 90506-430.-000 | WASHER, FENDER MOUNT | 2 | 2 | |
| 14 | 91081-NF4-003 | RIVET, BLIND, 3.2 | 16 | 16 | |
| 15 | 91301-KR3-003 | O-RING, 25.5*2.5 | 1 | 1 | |
| 16 | 91301-MW4-004 | O-RING, 26.2*1.9 | 2 | 2 | |
| 17 | 91315-KE8-003 | O-RING, 24*3 | 1 | 1 | |
| 18 | 94050-06000 | NUT, FLANGE, 6mm | 1 | 1 | |
| 19 | 96500-06025-00 | BOLT, FLAMGE, DR, 6*25 | 2 | 2 | |
| 20 | 96700-06016-07 | BOLT, SOCKET, 6*16 | 6 | 6 | |