Everything You Need to Know Before Buying a New 2026 KTM 300 XC-W near San Tan Valley, AZ

Key Features of the 2026 KTM 300 XC-W

300cc 2-stroke powerplant

The heart of the 2026 KTM 300 XC-W is its renowned 293.15 cm³ single-cylinder 2-stroke engine, tuned to dominate enduro riding with immediate torque and a broad, usable powerband. This engine sets the benchmark in the competitive Enduro E3 class for a reason—its low-end pull makes short work of ledges and loose climbs, while its top-end fury keeps momentum high in open sections. KTM thoughtfully routes the header for added ground clearance and fewer rock strikes, and the silencer is lightweight aluminum to help keep mass low. With a 6-speed transmission designed for varied terrain and a reliable electric start powered by a 2 Ah lithium-ion battery, this engine is engineered for quick restarts, less fatigue, and consistent performance day after day.

Electronically controlled Throttle Body Injection

The electronically controlled Throttle Body Injection (TBI) system uses a Keihin 39 mm throttle body and ECU mapping that constantly evaluates inputs to calculate the ideal air-fuel mixture. For riders, that means predictable throttle response in heat, cold, or elevation changes, as well as clean fueling at low rpm when traction is at a premium. KTM includes a CPC connector protection cap for added durability and keeps a small, easily accessible fuel filter in the line to simplify maintenance. The end result is a crisp, precise power delivery and reduced fiddling with jetting—exactly what modern enduro riders expect from a top-tier 2-stroke.

WP XACT Closed Cartridge fork (48 mm)

The 48 mm WP XACT Closed Cartridge fork focuses on consistency, control, and quick adjustability. Updated internal components include shorter, lighter main springs with a polished surface, a new pressure reservoir, and a one-piece hydrostop to improve durability while shaving weight by around 200 grams. On the trail, riders feel the difference as more planted front-end feedback and confident damping through repeated hits. Tool-free clickers on the fork base and top cap allow fast, incremental changes in compression and rebound, letting you tune for sand washes, rock gardens, or roots without searching for tools. It’s a track-proven setup with the versatility required for real-world enduro.

PDS rear shock with hand-adjustable dual compression

KTM’s legendary PDS (Progressive Damping System) rear shock remains a hallmark of the XC-W range. It eliminates linkages for less weight and improved ground clearance, while still providing a planted, controlled feel on square edges and choppy climbs. For 2026, the shock hardware remains proven, while settings are refined to harmonize with the latest fork updates. Most importantly, riders can adjust high- and low-speed compression by hand and easily tweak rebound. The result is less time in the pits and more time testing settings on the trail—exactly how enduro riders near San Tan Valley, AZ prefer to dial in their bikes for mixed desert and high-country conditions.

Offroad Control Unit (OCU) and optional Map Select switch

The Offroad Control Unit replaces traditional fuses and relays with a compact, LED-indicated system mounted under the seat. Each circuit’s status shows via red or green lights, making fault-finding fast and intuitive—no loose fuses to carry or chase. KTM also offers an optional Map Select switch that unlocks two distinct engine personalities: Map 1 delivers a linear, predictable response that hooks up on slick rock and roots, while Map 2 sharpens throttle for a more aggressive feel in deep sand or when you want extra snap. Together, these systems emphasize the XC-W’s blend of modern simplicity and rider-first flexibility.