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Motorcycle comparison · Enduro

KTM 250 EXC TPI Sixdays (MY2018) vs 300 EXC TPI Sixdays (MY2018)

KTM 250 EXC TPI Sixdays vs 300 EXC TPI Sixdays: which one belongs in your truck bed?

You'll roll the throttle on the KTM 250 EXC TPI Sixdays in tight woods, and its two-stroke pulls clean without the usual stutter. The same twist on the KTM 300 EXC TPI Sixdays hauls the bike up a technical climb on deep torque. Its drive keeps building and doesn't spike.

KTM 250 EXC TPI Sixdays (MY2018) and KTM 300 EXC TPI Sixdays (MY2018) side by side
KTM 250 EXC TPI Sixdays (MY2018) 2018–2022 · Injected Two-Stroke Sixdays Weapon KTM 300 EXC TPI Sixdays (MY2018) 2018–2022 · Injected Two-Stroke, Zero Compromise

What makes each one tick

250 EXC TPI Sixdays

Through a rock garden, the 250 EXC TPI Sixdays puts its front tire exactly where you've pointed the bar. It snaps from boulder to boulder.

300 EXC TPI Sixdays

From a cold dawn at altitude to a hot afternoon down low, the 300 EXC TPI Sixdays runs the same on its fuel injection. Low in the revs, the stock map can run lean and hesitant, and it's common to fit an ECU tune or tweak the idle screw. A squeeze of the brake lever works the stock Brembo front, which doesn't need an upgrade to stop the bike. The injection does its own jetting.

The Voice of Experience

Portrait of NastyNils

What actually separates them

  • The 300 EXC TPI Sixdays makes more peak power: 55 hp (40 kW) vs 46 hp (34 kW).
  • The 300 EXC TPI Sixdays makes more peak torque: 34 lb-ft (46 Nm) vs 23 lb-ft (31 Nm).
  • The 300 EXC TPI Sixdays has the larger engine: 293 cc vs 249 cc.

See every difference ↓

Which one for the way you ride

Call it even on the dirt, twisty roads, running costs, and a first bike. Choose on fit, price and the one that makes you grin.

Who each one is built for

Moab / Desert Technical Explorer

What's good, and what you'll live with

250 EXC TPI Sixdays

What owners say

Strengths

  • Lightweight, agile handling
  • Revolutionary TPI smoothness

300 EXC TPI Sixdays

What owners say

Strengths

  • Race-ready premium components

Trade-offs

  • Requires aftermarket tuning for optimal throttle response

Known problems to check before you buy

250 EXC TPI Sixdays

  • Potential oil starvation with TPI system Some owners have reported concerns about insufficient oil delivery, particularly under high-load or muddy conditions. This may be related to oil pump mapping or routing.
  • Faulty crankcase pressure sensor A known issue with the TPI system: the crankcase pressure sensor can fail, causing poor running.

300 EXC TPI Sixdays

  • Potential oil starvation from injection system Some owners have reported that the TPI oil pump does not deliver sufficient oil at high engine speeds or under heavy load, potentially leading to engine wear.

What they share

Seat height
37.8 in (960 mm)
Engine
Single-cylinder
Cooling
Liquid-cooled
Gearbox
6-speed
Final drive
Chain
Fork
Upside-down (USD)
Front brake
260 mm
Front tire
90/90-21
Rear tire
140/80-18
Wheelbase
58.3 in (1482 mm)
Front travel
11.8 in (300 mm)
Rear travel
12.2 in (310 mm)

Where the spec sheets split

Seat height and weight
250 EXC TPI Sixdays 300 EXC TPI Sixdays
Dry weight 234 lb (106 kg) 235 lb (106 kg)
Engine, power and torque
250 EXC TPI Sixdays 300 EXC TPI Sixdays
Displacement 249 cc 293 cc
Power 46 hp (34 kW) 55 hp (40 kW)
Torque 23 lb-ft (31 Nm) 34 lb-ft (46 Nm)
Fuel tank capacity
250 EXC TPI Sixdays 300 EXC TPI Sixdays
Fuel capacity 2.4 US gal (9 L) 2.5 US gal (9.5 L)
Other specifications
250 EXC TPI Sixdays 300 EXC TPI Sixdays
Ground clearance 14.0 in (355 mm) 14.6 in (370 mm)

Head to head, area by area

Both bikes on the same scale, one area at a time.

Braking

Engine

Handling

Suspension

Comfort

Reliability

Practicality

Off-Road Capability

Usability

Specs and equipment as of October 18, 2026. The riding calls use the same ratings behind both buyer's guides.