Offroad 2020

ENGINE accessories body handlebar & grips cables & levers engine fuel & intake electrical & ignition clutch drive bearings brakes steering & suspension tires exhaust chemicals tools & shop 469 2020 OFFROAD CATALOG HOT CAMS DIRTBIKE CAMSHAFTS CONTINUED MODEL YEARS DESCRIPTION Intake Lift IntakeLobe Center Intake Duration IntakeValve Lash Exhaust Lift Exhaust LobeCenter Exhaust Duration Exhaust ValveLash PART # HONDA CONTINUED CRF 250 R 10-15 Camshaft Unicam Stage 1 cam: Improved low-end and mid-range torque with slight top end loss: Designed with Improved Throttle Response (I.T.R.) technology: Uses stock valve springs: Uses stock auto-decompression mechanism 8.26 100 241 0.1 8.84 107 266 0.25 871642 272.65 CRF 250 R 16-17 Camshaft Unicam Stage 1 cam: Low and mid RPM torque are increased. Top horsepower slightly increased over stock: Designed with Improved Throttle Response (I.T.R.) technology: Uses stock valve springs: Uses stock auto-decom- pression mechanism 9.27 100 241.61 0.12 8.84 107 266.26 0.28 871976 272.65 CRF 250 R 16-17 Camshaft Unicam Stage 2 cam: Good top end cam: Designed with Improved Throttle Response (I.T.R.) technology: Uses stock valve springs: Uses stock auto- decompression mechanism 9.4 106 254.78 0.12 9.4 104 264.17 0.28 871977 272.65 CRF 250 X 04-09, 12-13, 15-17 Camshaft Unicam Stage 1 cam: Excellent bottom-end and mid-range power gains: Uses stock valve springs: Single-cam engine: Uses stock auto-decompression mechanism 8.1 104 244 0.12 8.1 99 250 0.28 870211 272.65 XR 250 R 96-04 Camshaft Unicam Stage 1 cam: Excellent midrange and top-end power increase: Uses stock valve springs and rockers: Single-cam engine: Does not utilize the stock auto-decompression mechanism 9 236 0.13 8.7 ----- 236 0.15 870261 232.25 XR 400 R 96-04 Camshaft Unicam Stage 2 cam: Slight mid-range gain and excellent top-end power increase: Uses stock valve springs and rockers: Single-cam engine: Does not utilize an auto-decompression mechanism: Stock starter is sufficient 9 106 254 0.13 8.9 104.25 248.5 0.15 870263 242.35 XR 400 R 96-04 Camshaft Unicam Stage 1 cam: Excellent mid-range and top-end power increase: Uses stock valve springs and rockers: Single-cam engine: Does not utilize an auto-decompression mechanism: Stock starter is sufficient: Not recom- mended for big bore applications over 426cc 9 106 246 0.13 9 107 246 0.15 870262 222.15 XR 400 R 96-04 Camshaft Unicam Stage 3 cam: Top-end power. Designed specifically for Hot Rods big bore stroker kit: Uses stock valve springs and rockers: Single-cam engine: Does not utilize an auto-decompression mechanism: Stock starter is sufficient 9.1 110.5 262 0.13 9 104.5 257 0.15 870264 242.35 CRF 450 R 07 Camshaft Unicam Stage 1 cam: Excellent bottom-end and midrange increase with improved throttle response: Uses stock valve springs and rockers: Single-cam engine: Uses stock decompression mechanism 9.6 109 238 0.15 8.8 103.25 270 0.28 870234 99.95 CRF 450 R 07 Camshaft Unicam Stage 3 cam: Significantly more top-end power than Stage 2. Will work well for Supermoto and big bore/strokers: Uses stock valve springs and rockers: Single-cam engine: Uses stock decompression mechanism 10.4 116.5 254 0.15 9.1 104 265 0.28 870236 269.95 CRF 450 R 07 Camshaft Unicam Stage 2 cam: Excellent midrange and top-end increase: Improved throttle response: Uses stock valve springs and rockers: Single-cam engine: Uses stock decompression mechanism 10.1 112 248 0.15 8.8 104.5 270 0.28 870235 269.95 CRF 450 R 08 Camshaft Unicam Stage 1 cam: Excellent bottom-end and mid-range increase: Improved throttle response: Uses stock valve springs and rockers: Single-cam engine: Uses stock decompression mechanism 9.6 109 238 0.15 8.8 103.25 270 0.28 870237 272.65 CRF 450 R 08 Camshaft Unicam Stage 2 cam: Good mid-range and top-end gains: Uses stock valve springs: Single-cam engine: Uses stock auto-decompression mechanism 10.1 112 248 0.15 8.8 104.5 270 0.28 870238 272.65 CRF 450 R 09 Camshaft Unicam Stage 1 cam: Improved torque below 9000 RPM with improved peak horsepower: Uses stock valve springs and rockers: Single-cam engine: Uses stock decompression mechanism 9.6 109 238 0.16 8.7 104 248 0.28 870240 272.65 CRF 450 R 09 Camshaft Unicam Stage 2 cam: Same low-end power as OEM cam up to 6,000 RPM and improved power from 6,000 to rev-limiter: Uses stock valve springs and rockers: Single cam engine: Uses stock auto-decompression mechanism 10.1 112 248 0.16 8.7 104 269 0.28 870241 272.65 CRF 450 R 09 Camshaft Unicam Stage 3 cam: Improved top end power and over rev with slight low to mid- range loss: Uses stock valve springs and rockers: Single-cam engine: Uses stock decompression mechanism 10.4 118 252 0.16 9 104 265 0.28 870242 99.95 CRF 450 R 02-06 Camshaft Unicam Stage 2 cam: Excellent mid-range and top-end increase: Improved throttle response: Uses stock valve springs: Single-cam engine: Uses stock auto-decompression mechanism 10.1 112 248 0.15 8.8 104.5 270 0.28 870232 272.65 CRF 450 R 02-06 Camshaft Unicam Stage 3 cam: Significantly more top-end power increases than stage 2: Works best with big bore/stroker applications: Uses stock valve springs: Single-cam engine: Uses stock auto-decompression mechanism 10.4 116.5 254 0.15 9.1 104 265 0.28 870233 272.65 CRF 450 R 02-06 Camshaft Unicam Stage 1 cam: Excellent bottom-end and mid-range increase: Improved throttle response: Uses stock valve springs: Single-cam engine: Uses stock auto-decompression mechanism 9.6 109 238 0.15 8.8 103.25 270 0.28 870231 272.65 CRF 450 R 10-12 Camshaft Unicam Stage 3 cam: Best suited for engines requiring more breathing capability: Uses stock valve springs and rockers: Single-cam engine: Uses stock decompression mechanism 10.4 118 252 0.16 9 104 265 0.28 870252 269.95 CRF 450 R 10-16 Camshaft Unicam Stage 2 cam: Improved power from 6000 RPM to rev-limiter with no loss on the bottom-end. Designed with Improved Throttle Response (I.T.R.) technology: Uses stock valve springs and rockers: Single cam engine: Uses stock auto-decompression mechanism 10.38 109.8 254 0.16 9.04 104 265 0.28 871028 272.65 CRF 450 R 10-16 Camshaft Unicam Stage 1 cam: Improved torque below 8000 RPM with no loss in peak horsepower over OEM: Uses stock valve springs and rockers: Single cam engine: Uses stock auto-decompression mechanism 10.08 101.85 248.7 0.16 8.71 104 269 0.28 871641 272.65 CRF 450 R 17-18 Camshaft Unicam Stage 1 cam: Good bottom-end and midrange increase's up to 9,400 RPM with slight loss 9,400 RPM to redline. Camshaft designed with improved throttle response technology: Uses stock valve springs and cam followers: Single-cam engine: Uses stock decompression mechanism 10.41 102.38 246 0.13 9.91 102.15 257 0.28 833918 269.95