2021 KTM 350 SX-F

2021 KTM 350 SX-F

The KTM 350 SX-F continues to deliver a dominant mix of horsepower and agility. It has an exceptional power-to-weight ratio with torque similar to that of a 450, without losing its 250-like agility. When you're looking for more than one advantage, this powerful, lightweight racer combines all your needs into one dominant package with serious championship pedigree to back it up.

ENGINE & EXHAUST

• ENGINE

The engine of the 2020 KTM 350 SX-F is neatly arranged in a compact and light (58.6 lbs) construction. It features an innovative clutch system; perfectly geared, durable transmission, and a lightweight DOHC (double overheard camshaft) cylinder head, which all contribute to making it an extremely impressive engine. It also features a new, stronger oil pump intermediate gear, for improved reliability. Fitted with the latest electronic fuel injection system and a useful electric starter, just one push of a button fires up this impressively competitive engine.

• CYLINDER HEAD

The cylinder head on the KTM 350 SX-F is the gateway to its excellent power. It features two overhead camshafts with friction-optimized super-fine surfaces, connected to DLC coated finger followers that activate four lightweight titanium valves (intake 36.3 mm, exhaust 29.1 mm). KTM engineers have maximized the flow rate, delivering an optimal power band, with outstanding performance across the entire 13,400 rpm range.

CHASSIS

• FRAME

As with the entire SX range, the frame on the KTM 350 SX-F is professionally crafted from hydroformed chromium molybdenum steel tubes that are robot welded to ensure the highest levels of consistent quality. The carefully calculated stiffness of the frame delivers responsive handling and works perfectly with the suspension to provide excellent agility and high-speed stability. All 2020 KTM SX frames feature a highly durable powder coating and come with standard frame protectors. The subframe is made from lightweight aluminum and provides great feeling for the rider, as well as easy movement across the seat.

• SWINGARM

The KTM 350 SX-F's one-piece swingarm is manufactured using a gravity die-cast production process for exceptional strength at the lowest possible weight. It offers a wide range of adjustment for the rear wheel, allowing for a shorter wheelbase on tighter, twisty tracks, or a longer wheelbase for greater stability on longer, more choppy tracks. The swingarm's chain measurement markings are visible from above, making adjustment simpler and more accurate.

ERGONOMICS & COMFORT

• SEAT

All KTM SX models feature a seat that perfectly matches the range's dynamic performance-oriented ergonomics. The seat cover features silicone strips that provide better feel and grip for the rider. The seat is conveniently fixed to the bike using one long, lateral screw, making it secure and easy to handle.