BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | OFFROAD PISTON & PISTON KITS PISTON & PISTON KITS 1400 FITS MODEL BORE (MM) X STROKE (MM) DISPL. (CC) BORE SIZE (MM) OVER SIZES (MM) PK KIT PART # PISTON PART # REPL. RING SET PART # REPL. CIRCLIPS PART # REPL. WRIST PIN PART # TOP-END BEARING PART # HONDA 2-STROKE (CONT) CR125R 92-97 54 125 54 STD 0903-0295 676M05400 2126CS CW15 S-467 B1001 Nikasil Bore - Cylinder sleeving or replating required for oversizes. Pro-Lite. x 54.5 0.5 - 676M05450 2146CS 54.5 55 1.0 - 676M05500 - 56 2.0 - 676M05600 2205CS CR125R 95-97 54 125 54 STD - 0910-0729 2126CS CW15 - - Racer’s Choice GP Style. x 134 56 2.0 - 0910-0730 2205CS Electra coated. 54.5 Nikasil Bore - Cylinder sleeving or replating required for oversizes. No intake window. Pinned on centerline. Longer skirt than stock. CR125R 98-99 54 125 54 STD 0903-0293 676M05400 2126CS CW15 S-467 B1001 Nikasil Bore - Cylinder sleeving or replating required for oversizes. Pro-Lite. x 54.5 0.5 - 676M05450 2146CS 54.5 55 1.0 - 676M05500 - 56 2.0 - 676M05600 2205CS CR125R 98-99 54 125 54 STD - 0910-0729 2126CS CW15 - - Racer’s Choice GP Style. x 134 56 2.0 - 0910-0730 2205CS Electra coated. 54.5 Nikasil Bore - Cylinder sleeving or r eplating required for oversizes. No intake window. Pinned on centerline. Longer skirt than stock. CR125R 00 54 125 54 STD 0903-0284 676M05400 2126CS CW15 S-467 B1001 Nikasil Bore - Cylinder sleeving or replating required for oversizes. Pro-Lite. x 54.5 0.5 - 676M05450 2146CS 54.5 55 1.0 - 676M05500 - 56 2.0 - 676M05600 2205CS CR125R 01-02 54 125 54 STD 0903-0301 676M05400 2126CS CW15 S-467 B1001 Nikasil Bore - Cylinder sleeving or replating required for oversizes. Pro-Lite. x 54.5 0.5 - 676M05450 2146CS 54.5 55 1.0 - 676M05500 - 56 2.0 0903-0217 676M05600 2205CS CR125R 00-02 54 125 54 STD - 0910-0729 2126CS CW15 - - Racer’s Choice GP Style. x 134 56 2.0 - 0910-0730 2205CS Electra coated. 54.5 Nikasil Bore - Cylinder sleeving or replating required for oversizes. - No intake window. Pinned on centerline. Longer skirt than stock. CR125R 03 54 125 54 STD 0903-0286 676M05400 2126CS CW15 S-467 B1001 Nikasil Bore - Cylinder sleeving or replating required for oversizes. Pro-Lite. x 54.5 0.5 - 676M05450 2146CS 54.5 55 1.0 - 676M05500 - 56 2.0 - 676M05600 2205CS CR125R 03 54 125 54 STD 0903-0732 0910-0729 2126CS CW15 - - Racer’s Choice GP Style. x 134 56 2.0 0903-0733 0910-0730 2205CS Electra coated. 54.5 Nikasil Bore - Cylinder sleeving or replating required for oversizes. - No intake window. Pinned on centerline. Longer skirt than stock. CR125R 04 54 125 54 STD - 0910-0733 2126CS CW15 - B1001 Pro-Lite. x 56 2.0 - - 2205CS 54.5 CR125R 04 54 125 54 STD - 0910-0731 2126CS CW15 - B1001 Racer’s Choice GP Style. x 56 2.0 - 0910-0732 2205CS Electra coated. 54.5 57 3.0 - - 2244CS Nikasil Bore - Cylinder sleeving or replating required for oversizes. - - - - - - CR125R 05-07 54 125 54 STD 0903-0520 - 2126CS CW15 - - Pro-Lite. x 54.5 CR125R 05-07 54 125 54 STD 0903-0521 0910-0731 2126CS CW15 - B1001 Racer’s Choice GP Style. x 56 2.0 - 0910-0732 2205CS Electra coated. 54.5 3.0 - - 2244CS - - - - - - CR250M 75-77, MT/MR250 75-77 70 248 70 STD - 338M07000 2756CD CW18 - B1003 x 70.5 0.5 - 338M07050 2776CD 64.4 71 1.0 - 338M07100 2795CD 71.5 1.5 - - 2815CD 72 2.0 - - 2835CD CR250R 78-80 70 248 70 STD - 431M07000 2756CD CW18 - B1003 Chrome Bore - Cylinder sleeving or replating required for oversizes. *2756 CDM rings required for Standard Chrome Bore. x 70.5 0.5 - 431M07050 2776CD 64.4 70.75 0.75 - - 2786CD 71 1.0 - 431M07100 2795CD 71.5 1.5 - 431M07150 2815CD 72 2.0 - 431M07200 2835CD HIGH-PERFORMANCE PISTONS (CONT)
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