Dirt Bikes

2024 Husqvarna FC 450 Rockstar Edition Technical Information

Features and specifications of Husqvarna’s special-edition 450 motocrosser.

May 11, 2024

Since unveiling its FC 250 and FC 450 Rockstar Editions in 2022, Husqvarna’s full-size motocross and cross-country racers have used a more rigid chassis than prior years. Although still excellent machines, Husqvarna sought to find some of the flex its previous-generation models were so well known for when developing the 2024 FC 250 and FC 450 Rockstar Editions. We recently swung a leg over the larger displacement of the two at Fox Raceway but before we publish our feedback about the bike’s performance, we took this opportunity to highlight some of the differences between the FC 450 Rockstar Edition and its predecessors. Keep scrolling for that very information.

In addition to being powdercoated white instead of black, as was the case since it was first introduced in 2018, the Husqvarna FC 450 Rockstar Edition’s frame sees updates throughout in 2024.Jeff Allen

Its fuel-injected liquid-cooled SOHC four-stroke 450cc single-cylinder engine boasts an updated air intake sleeve and snorkel. On our in-house dyno, this mill pumps out 55.5 hp and 33.5 lb.-ft. of torque at the rear wheel.Jeff Allen

Header pipe is the same as what’s found on the standard FC 450 but the same can’t be said of the muffler, which is an FMF Factory 4.1 RCT titanium slip-on.Jeff Allen

A removable spark arrestor is installed in the muffler’s carbon fiber end-cap.Jeff Allen

Clutch is stock, but Husqvarna adds a Rekluse cover to enhance the bike’s factory appearance.Jeff Allen

One of the biggest talking points on this model for 2024 is the Connectivity Unit Offroad (CUO). Among other features, it allows users to adjust engine-braking, launch control and traction control (TC) settings, as well as quickshifter (QS) sensitivity.Jeff Allen

Changes made to launch control, TC, and QS in the Ride Husqvarna Motorcycles smartphone app can be felt when those functions are activated via the switch on the left side of the ProTaper handlebar.Jeff Allen

Settings in the WP Xact front and rear suspension components have been altered to match the chassis updates.Jeff Allen

There’s a new shock body cover that, like the previous design, can be removed to access the low- and high-speed compression adjusters.Jeff Allen

Bell crank and pullrod have been revised to help decrease chassis rigidity.Jeff Allen

One of the most significant updates made to the double-cradle chromoly steel frame is that material has been taken out of the shock tower to improve chassis comfort.Jeff Allen

Engine mounts with cutouts are another chassis-related change aimed at increasing flex.Jeff Allen

Although less noticeable in terms of being visibly different, Husqvarna revised the swingarm as well.Jeff Allen

Rear brake pedal tip is new, and designed to be stronger and less susceptible to bending.Jeff Allen

Factory Racing triple clamps are split in the middle unlike the standard model’s, and have an adjustable offset of 20mm or 22mm.Jeff Allen

While KTM’s and GasGas’ Factory Edition models have their respective brand logos on their Factory Racing triple clamps, Husqvarna’s Rockstar Editions are adorned with a WP emblem.Jeff Allen

Black anodized hubs have been a staple on the FC 450 Rockstar Edition since 2022.Jeff Allen

Brembo brake calipers are identical to the standard model’s.Jeff Allen

A floating front brake disc is covered by a carbon composite guard.Jeff Allen

Another carbon composite item is the skid plate.Jeff Allen

Like Malcolm Stewart’s and Christian Craig’s racebikes, the FC 450 Rockstar Edition on dealership floors features a Guts Racing seat cover.Jeff Allen

Dirt start ready. Husqvarna’s special-edition flagship motocrosser is equipped with a WP holeshot device in stock trim.Jeff Allen

Rockstar Energy Husqvarna Factory Racing in-mold graphics are new, and match the white frame and rest of the bike’s color scheme well.Jeff Allen

A ProTaper handlebar pad is another item exclusive to the Rockstar Editions.Jeff Allen

Rolled onto Dirt Rider’s automotive scales with a full tank of fuel, the FC 450 Rockstar Edition weighs 242 pounds.Jeff Allen

2024 Husqvarna FC 450 Rockstar Edition Specs

MSRP:	$12,549
Engine:	SOHC, liquid-cooled, four-stroke single-cylinder; 4 valves/cyl.
Displacement:	450cc
Bore x Stroke:	95.0 x 63.4mm
Compression Ratio:	13.6:1
Transmission/Final Drive:	5-speed/chain
Dirt Rider Measured Horsepower:	55.5 hp @ 9,300 rpm
Dirt Rider Measured Torque:	33.5 lb.-ft. @ 6,900 rpm
Fuel System:	Keihin EFI w/ 44mm throttle body
Clutch:	Wet, multiplate Damped Diaphragm Steel (DDS); hydraulic actuation
Frame:	Central double-cradle chromoly steel
Front Suspension:	WP Xact 48mm fork, air pressure, compression damping, and rebound damping adjustable; 12.2 in. travel
Rear Suspension:	WP Xact shock, spring preload, high/low-speed compression damping, and rebound damping adjustable; 11.8 in. travel
Front Brake:	Brembo 2-piston caliper, 260mm disc
Rear Brake:	Brembo 1-piston caliper, 220mm disc
Tires, Front/Rear:	Dunlop Geomax MX34; 80/100-21 / 120/90-19
Rake/Trail:	26.1°/NA
Wheelbase:	58.8 in.
Ground Clearance:	13.5 in.
Dirt Rider Measured Seat Height:	37.8 in.
Fuel Capacity:	1.9 gal.
Dirt Rider Measured Wet Weight:	242 lb.
Availability:	Now
Contact:	husqvarna-motorcycles.com