KTM 350 SX-F vs KTM 450 SX-F
Side-by-side comparison of the KTM 350 SX-F and KTM 450 SX-F — weight, seat height, power, fuel capacity, suspension, and price for riders making a real buying decision.
Quick answer
Choose the KTM 350 SX-F if you want KTM's feel and the 350cc 4-stroke engine character. Choose the KTM 450 SX-F if you prefer KTM's package and the 450cc 4-stroke platform. Specs are close in many areas — what matters most is terrain, ergonomics, and dealer support.
Who wins for which rider
Rider-need verdicts. The right pick depends on what you actually ride and how you ride it.
Lighter weight for technical terrain
KTM 350 SX-F
About 0.7 kg lighter on the spec sheet (without fuel), which matters in tight, technical riding.
Better value on price
KTM 350 SX-F
Lower listed price at $11,449 (US list price, plus $690 freight).
Side-by-side specs
| Spec | KTM 350 SX-F | KTM 450 SX-F |
|---|---|---|
| Brand | KTM | KTM |
| Displacement (cc) | 349.7 | 449.9 |
| Engine | 4-stroke | 4-stroke |
| Power (HP) | Not published | Not published |
| Torque (Nm) | Not published | Not published |
| Weight, without fuel (kg) | 102.4 | 103.1 |
| Seat height (mm) | 958 | 958 |
| Fuel capacity (L) | 7.2 | 7.2 |
| Gears | 5 | 5 |
| Start type | Not listed by KTM | Not listed by KTM |
| Front suspension | WP XACT-USD (AER), Ø 48 mm | WP XACT-USD (AER), Ø 48 mm |
| Rear suspension | WP XACT Monoshock with linkage | WP XACT Monoshock with linkage |
| Frame | Central double-cradle-type 25CrMo4 steel | Central double-cradle-type 25CrMo4 steel |
| Front brake | Disc brake | Disc brake |
| Rear brake | Disc brake | Disc brake |
| Clutch | Wet multi-disc DS clutch, Brembo hydraulics | Wet, DDS multi-disc clutch, Brembo hydraulics |
| Price | $11,449 (US list price, plus $690 freight) | $11,649 (US list price, plus $690 freight) |
KTM 350 SX-F sources:
- power, torque, weight, seat height, tank, all other specs: KTM 350 SX-F 2027 technical specifications, KTM USA, checked 2026-10-14. KTM publishes no power or torque figure, no brake disc sizes and no start type.
- price: KTM 350 SX-F 2027, KTM USA, checked 2026-10-14. Closed-course competition use only.
KTM 450 SX-F sources:
- power, torque, weight, seat height, tank, all other specs: KTM 450 SX-F 2027 technical specifications, KTM USA, checked 2026-10-14. KTM publishes no power or torque figure, no brake disc sizes and no start type.
- price: KTM 450 SX-F 2027, KTM USA, checked 2026-10-14. Closed-course competition use only.
What each bike is really like
KTM 350 SX-F
Full specs →The KTM 350 SX-F is the perfect blend of 250-like agility and 450-style power, making it a dominant force in motocross and a favorite for competitive riders.
KTM 450 SX-F
Full specs →The KTM 450 SX-F is a championship-winning motocross machine, delivering immense power and precise handling for those who demand the pinnacle of performance.
Common questions
Is the KTM 350 SX-F better than the KTM 450 SX-F?
Neither is strictly better. The KTM 350 SX-F is a 350cc 4-stroke KTM, while the KTM 450 SX-F is a 450cc 4-stroke KTM. The right choice depends on terrain, ergonomics, and dealer support more than headline specs.
Which is lighter, the KTM 350 SX-F or the KTM 450 SX-F?
KTM lists the KTM 350 SX-F at 102.4 kg (without fuel). KTM lists the KTM 450 SX-F at 103.1 kg (without fuel). Makers do not all weigh bikes the same way, so check the basis before comparing.
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