Colton Haaker’s Husqvarna FX 350 EnduroCross Race Machine | Dirt Rider

Colton Haaker’s Husqvarna FX 350 EnduroCross Race Machine

Check out this off-road bike turned EnduroCross full factory racer.

Colton Haaker Husqvarna FX 350 EnduroCross Bike

Colton’s race bike is an FX 350, Husqvarna’s closed-course off-road race bike.

Adam Booth

Mechanic: Josh Schaecher

That large white number one sitting over red backgrounds on Colton’s Husqvarna isn’t there by mistake or without a lot of hard work. Colton earned that number one during the 2016 EnduroCross Series by mixing his trials skills with his impressive motocross speed. His 2017 EnduroCross race bike is a Husqvarna FX 350, a bike born from the FC 350, Husky’s middle-weight motocrosser.

Husqvarna FX 350 EnduroCross Engine

For the most part, the engine is built to stock specs and internal changes are done for reliability.

Adam Booth

At the heart of Colton’s bike is the 350 four-stroke engine. For the most part the engine is built to stock specs and internal changes are done for reliability. Performance changes are done through mapping adjustments. Mapping changes also help to prevent stalling at lower rpms and Colton runs his idle higher than stock. Exhaust duties are handled by FMF and the team leaves the spark arrestor in the FMF muffler to help the bike have smooth power and pass sound testing. They also use a Super B battery in his bike. They choose Super B for many reason but the most important for Endurocross is how quickly the bike starts after being stalled. Colton can fire his bike in gear quickly without any troubles.

Husqvarna FX 350 EnduroCross Transmission

Surprisingly, the transmission is stock.

Adam Booth

The transmission is stock and power makes it to the Supersprox sprockets and RK motocross chain through a Rekluse manual clutch set up. Haaker’s EnduroCross gearing is 12/51. Colton’s bike is set up so he can leave it in second gear the entire race. He never shifts and his mechanic told us that a few years ago they took the shifter off for a race because the logs in the wood pit were flipping up and hitting the shifter, knocking the bike into another gear.

Colton Haaker Husqvarna FX 350 EnduroCross Bike

Colton’s suspension consists of WP 48mm Cone Valve spring forks and a Trax shock.

Adam Booth

Colton’s suspension consists of WP 48mm Cone Valve spring forks and a Trax shock. His mechanic Josh says that the first half of the travel really soft, while the last half ultra stiff. He explained Colton could ride supercross whoops in the last 2 inches of suspension travel. Like most EnduroCross racers, Haaker uses PHDS (progressive handlebar damping system) handlebar mounts, from Husky hard parts. The handlebars are Pro Tamper, Carmichael bend and the grips are Pro taper half waffle super soft. Grips are attached via Pro Taper glue. The team runs heavy duty grey Teflon tape under the front brake and clutch perch, allowing them to move in the event of a fall.

Colton Haaker Husqvarna FX 350 EnduroCross Bike

The handlebars are Pro Tamper, Carmichael bend and the grips are Pro taper half waffle super soft.

Adam Booth

The wheels use Excel A60 rims, stock hubs and stock spokes. Because tires are so important in EnduroCross, Haaker’s Husky uses a Dunlop Gummy 756 110/90-18 in the back and a MX52 90/90 21 up front. They prefer the 90/90 over other sizes. Inside those tires are Tire Balls, but they wouldn’t divulge exactly what air pressure they use. It isn’t uncommon for Colton to pop a few of the Tire Balls during a main event due to the hard hits and aggressive riding.

Colton Haaker Husqvarna FX 350 EnduroCross Bike

The foot pegs are specially made by IMS and are razor sharp. They are also slightly smaller than production footpegs and are 5mm lower and 5mm back.

Adam Booth

The foot pegs are specially made by IMS and are razor sharp. They are also slightly smaller than production footpegs and are 5mm lower and 5mm back. A P3 carbon fiber skid plate protects the frame while a tailpiece protector by SXS covers the stock shock linkage. Custom tabs are welded to the frame to mount the underside protection. The brake pedal uses an Enduro Engineering brake stainless steel tip.

Colton Haaker Husqvarna FX 350 EnduroCross Bike

The brakes are very much stock, but use an ARC front brake lever.

Adam Booth

The team runs stock raditors, but a higher pressure 2.0 radiator cap. The Husqvarna stock louvers are very stout and act as radiator braces. The brakes are very much stock, but use an ARC front brake lever. Colton runs a stock clutch lever. An IMS catch can, hidden in the frame catches any coolant overflow.

Colton Haaker Husqvarna FX 350 EnduroCross Bike

He runs a Supersprox sprocket and RK motocross chain.

Adam Booth

A closer look reveals that Colton has custom chain blocks, designed so the rear wheel can’t kick back in the swing arm. The top guys hit obstacles so hard that sometimes it actually pushes the axle back in the swing arm.

Husqvarna FX 350 EnduroCross

The red plate looks good on a white bike.

Adam Booth

Colton Haaker Husqvarna FX 350 EnduroCross Bike

A P3 carbon fiber skid plate protects the frame while a tailpiece protector by SXS covers the stock shock linkage.

Adam Booth

Colton Haaker Husqvarna FX 350 EnduroCross Bike

The bike has a Rekluse manual clutch set-up.

Adam Booth

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