BOLD MAGENTA part numbers are new for 2025 CLUTCH & CLUTCH KITS PARTS-UNLIMITED.COM OFFROAD | 2025 CLUTCH & CLUTCH KITS 1465 CFK series CK series Clutch springs FITS MODEL STANDARD CK SERIES CLUTCH KIT PART # CSK CLUTCH SPRING PART # CFK CLUTCH KIT PART # DRC SERIES CLUTCH KIT PART # DRCF SERIES CLUTCH KIT PART # HONDA CRF50F 04-21 CK1148 - - - - XR50R 00-03 CK1148 - - - - CR60R 83-84 - - 1131-2210 - - CRF70F 04-14 CK1148 - - - - CT70 Trail 77-82 CK1148 - - - - CT70 Trail 91-94 CK1148 - - - - CLUTCH KITS AND CLUTCH SPRINGS continued on next page. CLUTCH KITS AND CLUTCH SPRINGS CK STANDARD SERIES •Cork-based clutch material impregnated with aluminum particles to increase wear life and heat resistance •Highly compressed construction avoids swell and clutch drag •Ideal for general-purpose street/sport/touring bikes •Kit includes complete engine set of friction plates only CSK CLUTCH SPRING SETS •It is recommended you replace springs when changing clutch plates •EBC springs are 10% stiffer than stock •Sold in engine sets CKF CLUTCH KITS •Kits have carbon-fiber impregnated friction plates • Tough clutch plates extend engine life, improve drive, increase the heat threshold of the clutch and improve rider feel • Available for select applications, see chart DRC SERIES CLUTCH KITS • Anti-swell, alloy impregnated heavy-duty cork-based facings for smooth clutch take-up • Allow modulation, unlike paper clutches which tend to snatch • Complete engine set of friction plates, HD springs and steel separator plates prevent premature driven plate wear, oil muddying and loss of stack height •Built with swaged aluminum carriers that spread the load on the clutch basket and prevent clutch basket “dogging” •For use with manufacturer’s recommended engine oil DRCF SERIES CLUTCH KITS •Heavy-duty clutch kit designed for hard use and race applications • Feature carbon-fiber lined clutch friction plates, a full set of steel plates and heavy-duty clutch springs • Ideal for use in 4-stroke, high-torque engine applications; great upgrade for 2-stroke performance applications SRC RACE/SPORT SERIES CLUTCH KITS • Aramid fiber paper-lined plate set, complete with heavy-duty clutch springs •For use in heavy sport bikes and production-based race bikes •SRC kits have longer plate life and higher heat resistance •SRC kits have a more aggressive/faster clutch takeup than the CK Standard series clutch kits •For use with manufacturer’s recommended engine oil SRK RACE/SPORT SERIES CLUTCH KITS •Include aramid fiber lined friction plates, steel separator plates and springs •Diaphragm-style springs used in kits for bikes with OEM diaphragm clutch springs •All kits designed to withstand the rigors of hard street and racetrack use
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