Husqvarna has released full details on its 2019 motocross lineup with the FC and TC models. Standing out among the list of changes are the new blue-coated frames that offer increased rigidity and a series of engine upgrades that all of the models receive. Designed in conjunction with the new frame is new bodywork, and the WP suspension components have updated settings in the front and rear to match the new frame characteristics.

2019 Husqvarna FC 450
The 2019 Husqvarna FC 450 features a new and more compact SOHC cylinder head 15mm (approximately 0.6 inch) shorter and 500 grams (1.1 pounds) lighter.Courtesy of Husqvarna

Engine

Each engine receives its own unique changes. Beginning with the flagship FC 450 model, it features a new and more compact SOHC cylinder head 15mm (approximately 0.6 inch) shorter and 500 grams (1.1 pounds) lighter. Additionally, shorter valve timing is designed to improve bottom-end performance and responsiveness. The new camshaft features a different cam surface, and a low-friction DLC coating is applied to the rocker arm and new chain guides to provide reduced friction. The FC 450 features a new Dampened Diaphragm Steel (DDS) clutch designed to improve traction and durability.

2019 Husqvarna FC 450
All of the 2019 Husqvarna motocross bikes have new stiffer frames that are powdercoated blue.Courtesy of Husqvarna

The FC 350 has an updated casting on the cylinder head that brings a weight saving of 200 grams (0.4 pound). Also, the titanium valves are larger (36.3mm intake and 29.1mm exhaust) and are intended to allow the engine to rev freely to the rev limiter set at 13,400 rpm. The FC 250 features a new exhaust camshaft that has different timing for an improved power delivery. Both the FC 250 and FC 350 have a new Diaphragm Steel (DS) clutch that, according to Husqvarna, saves 190 grams (approximately 0.4 pound) of weight.

The TC 125 and TC 250 receive a few similar engine changes, including new settings in the Mikuni 38mm carburetors and a new machined finish for the exhaust ports to improve function and performance. Both bikes feature mufflers that have new internals with less dense packing material offering more efficient noise damping. Together with a new aluminum mounting bracket, there is a weight saving of 300 grams (0.7 pound). Lastly, the two changes made specifically to the TC 250 are a new header pipe that is narrower and offers more ground clearance, and a new counterbalancer shaft designed to reduce vibration. Both TC models receive a new clutch, the TC 250 having a new DDS clutch and the TC 125 a DS clutch.

2019 Husqvarna FC 350
The FC 350 has an updated casting on the cylinder head that brings a weight saving of 200 grams (0.4 pound) and larger titanium valves.Courtesy of Husqvarna

The changes made to all of the 2019 FC models include new header pipes that feature a new flow-designed resonance chamber integrated within them along with a new joining position allowing them to be removed without detaching the shock. The new mufflers are shorter and more compact while delivering the same damping volume and noise levels. The mufflers are finished with a new anodized coating as well. Additional changes to the four-strokes include updated traction control and launch control settings, a new throttle cable routing, and the external fuel line moved inward to make it less exposed and susceptible to damage.

The engine changes shared by all five bikes (two-stroke and four-stroke) include new Pankl Racing Systems transmission for increased durability and improved shifting, 12mm-lower mounting of the radiators than previous year models, and a 4mm-larger center coolant hose that runs through the frame to reduce the pressure at that point in the system allowing for a more consistent coolant flow.

2019 FC models
All of the 2019 FC models have new header pipes and mufflers.Courtesy of Husqvarna

Suspension

The suspension components both receive updates, with the WP AER 48 fork featuring a new setting to match the stiffer frame while the WP shock has a new main piston and updated settings.

2019 Husqvarna FC 250
The FC 250 features a new exhaust camshaft with different timing for an improved power delivery.Courtesy of Husqvarna

Chassis

The chassis changes for 2019 include the new blue frame with specifically calculated parameters of longitudinal and torsional flex and newly designed sections that bring an increase in rigidity. The frames on the FC bikes feature new precision-casted head stay mounts and brackets for mounting an optional skid plate that will be available in the accessories line. Chassis changes that were made only to the TC 250 include new aluminum lateral engine head stays and the engine position being raised by 1 degree around the swingarm pivot to maximize grip on the front wheel and improve the general handling.

2019 Husqvarna TC 250
All five of Husqvarna’s 2019 motocross bikes feature new Pankl Racing Systems transmissions and new bodywork.Courtesy of Husqvarna

The composite carbon-fiber subframe, which uses 70 percent polyamide and 30 percent carbon fiber, has a new two-piece design (which was previously a three-piece) that saves 250 grams (0.6 pound) for a total weight of just over 1 kilogram (approximately 2.2 pounds). The swingarm has also been revised for 2019 with the chain adjustment slot being increased by 5mm to give the rider the option of increased straight-line stability.

2019 Husqvarna TC 250
The TC 250 has new aluminum lateral engine head stays and the engine position has been raised by 1 degree around the swingarm pivot.Courtesy of Husqvarna

The upper triple clamp has been reshaped and stiffened to work with the increased longitudinal rigidity of the frame and the new suspension setup, and protecting the lower triple clamp are new yellow guards that are integrated into the front number plate. Also, the ProTaper handlebar bend is different and the spoke nipples have a new design intended to reduce the need to be checked and tightened.

2019 Husqvarna TC 125
The TC 125 (pictured) and TC 250 receive a few similar engine changes, including new settings in the Mikuni 38mm carburetors and a new machined finish to the exhaust ports.Courtesy of Husqvarna

New bodywork is one of the most easily visible changes on the 2019 models, and the ergonomics are specifically designed to deliver greater comfort and control. Lastly, the seat profile is new and the contact points have been slimmed down in an effort to make movement between riding positions more seamless.