• Red Honda CRF450R dirt bike shown in side profile on a white background, with text reading 'HONDA CRF450R 2021-2024' and 'SERVICE, WORKSHOP & REPAIR MANUAL'.
  • Text 'INSTANT Download' with a green button on a white background
  • A technical service manual page for a clutch starter clutch/gearshift linkage, showing inspection and installation instructions alongside labeled diagrams of the clutch master cylinder, slave cylinder, and hose connections.
  • A page from a manual showing how to install a fuel pump unit, with labeled diagrams, cross-section views, and a small inset photo of a hand holding the assembled component. The page includes text such as 'FUEL SYSTEM', 'INSTALLATION', and numbered callouts.
1 4

Dr. E Manuals

Honda CRF450R 2021-2024 Service Manual

Honda CRF450R 2021-2024 Service Manual

£11.95 GBP
£11.95 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.

2021-2024 Honda CRF 450 CRF450R Service / Repair / Workshop Manual

Instant download after purchase, in PDF form, NOT a physical book.

This manual contains 434 pages in English Language, it is the only manual you will require to maintain, repair and service your Honda CRF 450 CRF450R.

Sample pages and table of contents can be seen in the third product picture, please make sure you are happy with the quality of the manuals before purchasing.

Features Chapters: general information, frame/body panels/exhaust system, maintenance, pgm-fi system, ignition system, electric starter, fuel system, lubrication system, cooling system, cylinder head/valves, cylinder/piston/cam chain tensioner, clutch/starter clutch/gearshift linkage, alternator, crankcase/crankshaft/transmission/balancer, engine removal/installation, front wheel/suspension/steering, rear wheel/suspension, hydraulic brake, battery/charging system, switches, wiring diagram, index

Suits Models from 2021, 2022, 2023, 2024

If you have any issues downloading/accessing your manual, please contact us so we can fix this for you.

View full details

CRF450R (2021-2024): The Bike Behind Jett Lawrence's Perfect 2023 Season and Tim Gajser's Four MXGP Titles

Honda's own confirmed 2025 feature materials tie this exact sixth-generation platform directly to its real competitive record: "the model has enjoyed success on the professional racing front... it has earned a number of accolades in the FIM MXGP World Championship, with the crown going to Tim Gajser in 2016, 2019, 2020 and 2022. The CRF450R has ruled recent AMA racing, with Chase Sexton earning the 2023 AMA Supercross crown, and Jett Lawrence securing the '23 AMA Pro Motocross and SuperMotocross Championships, as well as the 2024 AMA Supercross title." That's real, verifiable championship pedigree earned specifically on the 2021-2024 configuration covered in this listing.

Wikipedia's own confirmed account details the genuine, comprehensive redesign that opened this generation: "new slimmer frame and plastic design, single exhaust ported through center of the upright. The exhaust port is now oval instead of round." Autoevolution's own confirmed account expands on that 2021 overhaul: "a narrower frame, a single silencer, a hydraulic clutch, and a revised engine" — real, substantive changes from the prior fifth-generation dual-exhaust layout.

Power comes from a 449.8cc liquid-cooled SOHC single, a 13.5:1 compression ratio, delivering drive through a 5-speed transmission with electric start. Autoevolution's own confirmed account flags a genuine mid-cycle update within this range worth knowing for correct parts identification: "further upgrades were made in 2023, including improved engine mapping, a smaller 44mm throttle body, a revised frame, and steel engine hangers for better traction" — real hardware distinguishing a 2023-2024 example from the earlier 2021-2022 configuration despite sharing the same sixth-generation nameplate.

Autotrader's own confirmed 2024 factory specification lists a 58.3-inch wheelbase, a 965.2mm (38-inch) seat height, a 1.7-gallon fuel tank, and Dunlop Geomax MX33 tires (80/100-21 front, 120/80-19 rear), with a $9,699 starting price for the standard CRF450R that year. Honda also sold a genuine limited-production CRF450RWE (Works Edition) alongside the standard model throughout this range, layering on factory HRC-inspired upgrades annually — the 2023 revision specifically brought that same smaller 44mm throttle body, a revised intake port, updated cam profiles, increased frame rigidity, and Yoshimura exhaust components ahead of the standard bike receiving similar refinement. This exact sixth-generation configuration ran through 2024 before Honda's seventh-generation redesign arrived for 2025, developed with direct input from Jett and Hunter Lawrence and five-time MXGP champion Tim Gajser.

This factory service manual covers the procedures, torque specs, and diagrams needed to keep a 2021-2024 CRF450R running the way it was built to.

  • Manual Sourcing

    We strive to use freely available sources. Some manuals may be scans or photocopies of older originals. Sample previews are shown on the product page, please review them before purchase to ensure quality meets your needs.

  • Copyright

    This material is shared in accordance with the GNU General Public License (GPL), GNU Lesser General Public License (LGPL), or designated as Freeware, all of which allow free and open distribution. Additional information is available on our Copyright & Content Disclaimer Page

  • Refunds

    Due to the nature of digital products, all sales are final. We recommend reviewing the sample preview on the product page to ensure the manual meets your expectations before purchase. Refunds will not be issued for issues related to content quality already disclosed or shown in the preview.