Kacy Martinez’s KTM 150 XC-W EnduroCross Race Machine

For all those two-stroke fans, here’s a smokin’ off-road racer.

KTM 150 XC-W EnduroCross Race Machine
One of the reasons the team and Kacy chose the 150 XC-W was the PDS suspension, which doesn’t have shock linkage hanging down to catch on obstacles.Adam Booth

Kacy Martinez has won championships in both the WORCS and GNCC series and is now racing the EnduroCross series aboard a Factory RedBull KTM 150 XC-W two-stroke. One of the reasons the team and Kacy chose the 150 XC-W was the PDS suspension, which doesn't have shock linkage hanging down to catch on obstacles. The other deciding factor is the electric start, a feature that comes in very handy in a race environment that is anything but predictable.

KTM 150 XC-W EnduroCross Race Machine
The engine is pretty close to stock except for some factory power valve work for smoother delivery.Adam Booth

The engine is pretty close to stock except for some factory power valve work for smoother delivery. The ignition is even stock. The Mikuni carb is stock except for jetting and KTM ETS premixed fuel is what lives in the factory clear SX tank. This is a special KTM race team tank - sorry you can’t buy one for your 150. The team leaves the XC-W transmission stock and a raw FMF pipe feeds into an FMF 2.1 titanium PowerCore muffler. Engine power travels through Hinson clutch components on its way to Renthal sprockets and an RK chain. Final gearing on Kacy’s bike is 12/50.

KTM 150 XC-W EnduroCross Race Machine
Protection is important in EnduroCross so a P3 skid plate is used as a Zip-Ty shark fin and T.M. Designs chain sliders and chain guide.Adam Booth

The suspension set up for Kacy is ultra plush through the entire stroke of the WP Cone Valve air fork and Traxx PDS shock. Both the fork and the shock have been lowered and forks are positioned up about 20mm in the Neken triple clamps. The seat foam is also shaved down to help lower the bike further. The wheels are made up of stock hubs and spokes, laced to Excel A60 rims. The rear tire is a Dunlop Gummy 756 and the front is a Dunlop MX52. Both front and rear tires use TireBalls.

KTM 150 XC-W EnduroCross Race Machine
Both the fork and the shock have been lowered and forks are positioned up about 20mm in the Neken triple clamps.Adam Booth

The Renthal Twin Wall 999 handlebars mount through the PDHS mounts. Renthal half waffle soft are the grips of choice. ARC levers are added insurance incase of a tip over. Protection is important in EnduroCross so a P3 skid plate is used as a Zip-Ty shark fin and T.M. Designs chain sliders and chain guide. Protecting the front brake disc is an Acerbis guard. A Motion Pro Titan throttle tube is stronger than stock but won’t bent like a metal throttle tube might in a crash.

KTM 150 XC-W EnduroCross Race Machine
The Renthal Twin Wall 999 handlebars mount through the PDHS mounts. Renthal half waffle soft are the grips of choice.Adam Booth

The teams goal is to make the 150 as light as possible so titanium bolts are used throughout the bike, including the engine. Even with the electric start and the added protection, Kacy's bike weighs the same as a non-electric start 150 SX; right around 190 pounds without gas. This is by far the most trick KTM 150 XC-W bikes we've ever seen!

KTM 150 XC-W EnduroCross Race Machine
The team leaves the XC-W transmission stock and a raw FMF pipe feeds into an FMF 2.1 titanium PowerCore muffler.Adam Booth