KTM 250 EXC TBI Sixdays (MY2024) — Enduro
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2024 · Enduro · Buyer's Guide

250 EXC TBI Sixdays (MY2024)

Two-Stroke ISDE Factory Weapon

The Machine's Character

This is the ISDE-themed build of KTM's 250 two-stroke enduro, and the special-edition parts are the ones that actually matter on a trail. The closed-cartridge WP fork, machined triple clamps and orange powder-coated frame back up the Six Days Argentina graphics with real hardware. Throttle body injection feeds the 249 cc single, and the payoff is a clean, metered throttle pickup with usable pull from low revs instead of a light switch. 46 hp and 28 lb-ft in a chassis this narrow puts it at the sharp end of competition enduro, and the mass sits low and centered rather than hung out at the ends.

This is a race bike with a plate holder, and it ages the way race bikes do: hard parts hold up well, consumables go fast, and the whole thing rewards an owner who actually turns wrenches. The suspension is fully adjustable at both ends, so it can be dialed for a 150 lb woods rider or a heavier desert pace, and the aftermarket catalog is deep enough to build it into almost anything. The honest caveat is the 37.8 in seat and the 2.4 gal tank. Short riders and long days both get punished, and nothing about the ergonomics apologizes for it.

Hard Numbers

Spec sheets don't ride bikes, but they set the baseline.

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Key specifications
Power 46 hp (34 kW)
Torque 28 lb-ft (38 Nm)
Displacement 249 cc
Engine Single-cylinder
Cooling Liquid-cooled
Gearbox 6-speed
Final drive Chain
Fork Upside-down (USD)
Front tire 90/90-21
Rear tire 140/80-18
Ground clearance 13.7 in (347 mm)
Front travel 11.8 in (300 mm)
Rear travel 12.2 in (310 mm)
Seat height 37.8 in (960 mm)
Fuel capacity 2.4 gal (9 L)

Equipment check

Chassis

  • Front Suspension Adjustable Standard
  • Rear Suspension Adjustable Standard

Lighting

  • LED Headlight Standard
Aerial drone view of Palomar Divide Road winding through chaparral-covered mountain ridges in San Diego County. Multiple S-curve sections descend through sparse vegetation with distant valley views visible in the haze. Gravel and packed-earth surface.

Known issues

  • New air filter design incompatible with previous models

    bodywork common

    The redesigned airbox uses a different air filter shape, meaning existing spare filters from older KTM/Husqvarna/GASGAS models do not fit. A new stash must be purchased.

  • Non-standard rear axle nut requires new tool

    chassis common

    The 2024 model uses a larger rear axle nut, making previous wrenches useless. Owners need to buy a new tool for wheel changes.

The Numbers Compared

Compare the technical specifications of the KTM 250 EXC TBI Sixdays with other bikes in its class.

Head-to-head: KTM 250 EXC TBI Sixdays vs. its rivals

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