2021 Parts Unlimited Offroad

ENGINE parts-unlimited.com 2021 PARTS UNLIMITED OFFROAD BOLD MAGENTA part numbers are new for 2021 1002 DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. SEE PAGE 4 FOR IMPORTANT EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND WARRANTY INFORMATION. FITS MODEL DESCRIPTION INTAKE LIFT INTAKE DURATION (@1MM) EXHAUST LIFT EXHAUST DURATION (@1MM) PART # SUG. RETAIL HONDA CRF80F/​100F 04‑13 Excellent mid‑range and top‑end power increase. Uses stock valve springs and rockers. 6.8mm 236 5.9mm 216 XR100S1-A $149.95 XR75 77‑78, XR80 79‑03, XL100S 79‑85, XR100 81‑84, XR100R 85‑03 Excellent mid‑range and top‑end power increase. Uses stock valve springs and rockers. 6.8mm 236 5.9mm 216 XR100S1-A 149.95 CRF150R/RB Big Wheel 07‑09/12‑19 (stage 1) Single‑cam motor. Excellent bottom‑end and mid‑range power. Uses stock valve springs. Uses stock auto‑decompression mechanism. 8mm 238 7.45mm 265 0925-0131 219.95 CRF150R/RB Big Wheel 07‑09/12‑19 (stage 2) Single‑cam motor. Excellent top‑end power with great over‑rev. Uses stock valve springs. Uses stock auto‑decompression mechanism. 8.7mm 254 7.75mm 273.5 0925-0132 219.95 CRF250R/X 04‑09, CRF250X 12‑13/15‑17 (stage 1) Increased performance through low‑ to mid‑range power. Uses stock auto‑decompression mechanism. 8.1mm 244 8.1mm 250 0925-0049 269.95 CRF250R 04‑07, CRF250X 04‑09/ 12‑13/15‑17 (stage 2) Single‑cam motor, excellent top‑end power with great over‑rev. Uses stock auto‑decompression mechanism. Uses stock valve springs. 8.4mm 252 8.35mm 267 0925-0082 272.95 CRF250R 04‑09 (stage 3) Single‑cam motor, significantly more top‑end power and great over‑rev. Uses stock auto‑decompression mechanism. 8.61mm 254 8.13mm 261.5 0925-0269 269.95 CRF250R 10‑15 ITR Design single‑cam motor. Slight loss in low rpm torque, mid to top horsepower are increased. Uses stock auto‑decompression mechanism. Uses stock valve springs. 9.14mm 255 8.84mm 266 0925-0846 269.95 CRF250R 10‑15 ITR Design single‑cam motor. Low and mid rpm torque are increased. Top horsepower slightly increased over stock. Uses stock auto‑decompression mechanism. Uses stock valve springs. 8.26mm 241 8.84mm 226 0925-0865 269.95 CRF250R 16‑17 (stage 1) ITR Design single‑cam motor. Low and mid rpm torque are increased. Top horsepower slightly increased over stock. Uses stock auto‑decompression mechanism. Uses stock valve springs. 9.27mm 241.61 8.84mm 266.26 0925-1183 269.95 CRF250R 16‑17 (stage 2) ITR Design. Good top‑end cam. Uses stock valve springs and stock auto‑decompression mechanism. 9.4mm 254.78 9.4mm 264.17 0925-1184 269.95 XR250R 96‑04 Excellent mid‑range and top‑end power increase; does not use auto‑decompression. Uses stock valve springs and rockers. 9mm 236 8.7mm 236 XR250S1-A 229.95 XR400 96‑04 (stage 1) Excellent mid‑range and top‑end power; does not use auto‑decompression. Uses stock valve springs and rockers. 9mm 247 9mm 246 TRX400S1-A 222.95 XR400 96‑04 (stage 2) Specifically designed to produce more mid‑range and top‑end power in big bore and stroker applications; not stock displacement. Does not use auto‑decompression. 9mm 254 8.9mm 248.5 0925-0068 242.95 XR400 96‑04 (stage 3) Recommended for big bore stroker applications only, for more mid‑range and top‑end. Does not use auto‑decompression. 9.1mm 262 9mm 257 0925-0083 242.95 CRF450R 02‑06, CRF450X 05‑07 (stage 1) Excellent bottom‑end and mid‑range increase. 9.6mm 238 8.8mm 270 CRF450S1-A 272.95 CRF450R 02‑06, CRF450X 05‑07 (stage 2) Excellent mid‑range and top‑end increase. 10.1mm 248 8.8mm 270 0925-0024 272.95 CRF450R 02‑06, CRF450X 05‑07 (stage 3) Specifically designed to produce more mid‑range and top‑end power in big bore and stroker applications; not stock displacement. 10.4mm 254 9.1mm 265 0925-0084 272.95 CRF450R 07 (stage 1) Excellent bottom‑end and mid‑range increase. 9.6mm 238 8.8mm 270 0925-0128 99.95 CRF450R 08, CRF450X 08‑09/12‑17 (stage 2) Good mid‑range and top‑end. Uses stock auto‑decompression. 10.1mm 248 8.8mm 270 0925-0267 269.95 CRF450R 09 (stage 1) Single‑cam motor, improved torque below 9000 rpm with improved horsepower over OEM cam. Uses stock valve springs, rockers and auto‑decompression mechanism. 9.6mm 238 8.7mm 248 0925-0459 269.95 CRF450R 09 (stage 2) Single‑cam motor, same low‑end power as OEM cam to 6000 rpm with improved power from 6000 rpm to rev limit. Uses stock valve springs, rockers and auto‑decompression. 10.1mm 248 8.7mm 269 0925-0460 269.95 CRF450R 09 (stage 3) Single‑cam motor, best suited for engines requiring more breathing capability. Uses stock valve springs, rockers and auto‑decompression. 10.4mm 252 9mm 265 0925-0461 99.95 CRF450R 10‑16 (stage 1) Single‑cam motor, improved torque below 8000 rpm with no loss in peak horsepower over OEM cam. Uses stock valve springs, rockers, and auto‑decompression mechanism. 9.58mm 235.58 8.57mm 270 0925-0843 269.95 HOT CAMS • High-performance racing camshafts • Stage 1 and Stage 2 performance camshafts are drop-in cams that are designed to be used with stock valve springs • In most applications, Stage 1 cams deliver more torque and Stage 2 cams provide more peak horsepower • Gold Series camshafts are designed to provide extra torque and horsepower; these camshafts require the use of stiffer valve springs • Select cams feature Hot Cams Improved Throttle Design (ITR) technology; these cams improve throttle response throughout the entire rpm range while providing excellent power gains through the mid-range and top-end • New Builder Series camshafts offer engine builders a multitude of options for different engine configurations • Builder Series camshafts were developed for engine builders that have specific requirements to maximize their particular engine configuration; see notes in the performance description for use with OE valve springs or the requirement of stiffer valve springs