BOLD MAGENTA part numbers are new for 2026 PISTON & PISTON KITS PARTS-UNLIMITED.COM OFFROAD | 2026 PISTON & PISTON KITS 1415 HIGH-PERFORMANCE PISTONS continued on next page. 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 # SUZUKI 2-STROKE (CONT) RM80 91-01 47.5 82 47.5 STD 0903-0703 - 1869CS CW14 S-517 B1012 *Power Valve must be modified for 0.030 and larger. Pro-Lite. x 48 0.5 - 645M04800 1890CS 46.8 48.5 1.0 - 645M04850 1909CS 49 1.5 - - 1929CS 49.5 2.0 0903-0710 - 1949CS RM85 02-23 48 84.7 48 STD 0903-0303 806M04800 1890CS CW14 S-288 B1012 Cylinder resleeving or replating required for all oversizes. x 46.8 48.5 49 50 0.5 1.0 2.0 0903-0544 - 0903-0214 0910-1248 0910-1249 - 1909CS 1929CS - Crankcase clearance required for 50 mm and larger bore diameter. Must use stock thrust washers. Pro-Lite. RM85 02-22 52 99.4 52 5.0 0903-0294 806M05200 - CW14 S-288 B1012 Racer’s Choice Supermini. x CSA Ring is Titanium Nitride. coated 46.8 Crankcase clearance required for 50 mm and larger bore diameter. Must use stock thrust washers. RM100 03-04 52.5 99 52.5 STD 0903-0310 651M05250 2067CD CW14 S-288 B1006 Electrofusion Bore - Cylinder sleeving or replating required for oversizes. x 45.8 53 54.5 0.5 2.0 0903-0181 0903-0515 651M05300 0910-0345 2087CD - DS/TS125 79-81,TC125 70-78, RV125 73-77 56 123 56 STD - - 2205CD CW14 - B1018 x 56.5 0.5 - - 2224CD 50 57 1.0 - 449M05700 - RM125 77-80 54 123 54 STD - - 2126CD CW14 - B1018 X 55 1.0 - - 2165CD 54 55.5 1.5 - - 2185CD 56 2.0 - - 2205CD RM125 81-84 54 123 54 STD - 511M05400 2126CD CW14 0913-0006 B1018 x 55 1.0 - 511M05500 2165CD 54 55.5 1.5 - - 2185CD 56 2.0 - - 2205CD 55.5 1.5 - - 2185CD 56 2.0 - - 2205CD RM125 85-86 54 123 54 STD - - 2126CD CW14 0913-0006 B1018 x 55 1.0 - - 2165CD 54 55.5 1.5 - - 2185CD 56 2.0 - - 2205CD RM125 87 54 123 54 STD - - 2126CS CW14 S-288 B1018 Pro-Lite. x 54.5 0.5 - - 2146CS 54 56 2.0 - - 2205CS RM125 88 54 123 54 STD - - 2126CS CW15 S-467 B1013 Pro-Lite. x 54.5 0.5 - - 2146CS 54 56 2.0 - - 2205CS RM125 89-90 54 123 54 STD - 641M05400 2126CS CW15 S-467 B1013 SCEM Composite - Cylinder sleeving or replating required for oversizes. x 54.5 0.5 - 641M05450 2146CS Pro-Lite. 54 55 1.0 - 641M05500 - 55.5 1.5 - 0910-1218 - 56 2.0 - 0910-1219 2205CS RM125 91-96 54 123 54 STD 0903-0279 641M05400 2126CS CW15 S-467 B1013 SCEM Composite - Cylinder sleeving or replating required for oversizes. Pro-Lite. x 54.5 0.5 - 641M05450 2146CS 54 55 1.0 0903-0256 641M05500 - 55.5 1.5 0903-0548 0910-1218 - 56 2.0 - 0910-1219 2205CS RM125 97-99 54 123 54 STD 0903-0290 641M05400 2126CS CW15 S-467 B1013 SCEM Composite - Cylinder sleeving or replating required for oversizes. Pro-Lite. x 54.5 0.5 - 641M05450 2146CS 54 55 1.0 - 641M05500 - 55.5 1.5 - 0910-1218 - 56 2.0 - 0910-1219 2205CS RM125 00-03 54 124.8 54 STD 0903-0300 754M05400 2126CS CW15 S-467 B1013 SCEM Composite - Cylinder sleeving or replating required for oversizes. Pro-Lite. x 54.5 0.5 - 754M05450 2146CS 54.5 55 1.0 0903-0539 754M05500 - 55.5 1.5 - 754M05550 - 56 2.0 - 754M05600 2205CS RM125 00-03 54 125 54 STD - - 2126CS CW15 S-467 B1013 Racer’s Choice GP Style. x Electra Coated. 54.5 No intake window. Pinned on centerline. HIGH-PERFORMANCE PISTONS (CONT)
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