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Used KTM
Used KTM 450 SX-F for sale
The KTM 450 SX-F is a 450cc four stroke motocross bike, built for the track and sold on hours rather than kilometres.
24 KTM 450 SX-Fs are listed on MWMX right now (2013 to 2026 models), asking $4,000 to $13,500, most around $7,500. Every listing shows the hours, photos and where the bike is, and you can message the seller or make an offer without an account.
A KTM 450 SX-F is a race four stroke, so hours matter more than years: ask when the valves were last checked and the top end last done (60 to 100 hours is a normal rebuild interval on a hard raced one), listen for valve or clutch noise on a cold start, and look for a bent subframe, stripped threads and a sprocket with hooked teeth. Ask for the service history (members log theirs in the MWMX Digital Garage and it shows on the listing), look at the hours against the price, and check the frame and swingarm for cracks, the fork seals for weeping and the linkage and steering head bearings for play.
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Good to know
- How much is a used KTM 450 SX-F?
- The KTM 450 SX-Fs listed on MWMX today are asking $4,000 to $13,500, with most around $7,500. Year, hours and whether it has been raced move the price more than anything else; a bike with a logged service history sells faster and for more.
- How many hours is a lot on a KTM 450 SX-F?
- On a race four stroke under 50 hours is low, 50 to 100 is normal and over 100 wants a service history to go with it. The number that matters is hours since the last top end, valve check or rebuild, so ask for that rather than the total.
- What should I check before buying a used KTM 450 SX-F?
- A KTM 450 SX-F is a race four stroke, so hours matter more than years: ask when the valves were last checked and the top end last done (60 to 100 hours is a normal rebuild interval on a hard raced one), listen for valve or clutch noise on a cold start, and look for a bent subframe, stripped threads and a sprocket with hooked teeth. Ask for the service history (members log theirs in the MWMX Digital Garage and it shows on the listing), look at the hours against the price, and check the frame and swingarm for cracks, the fork seals for weeping and the linkage and steering head bearings for play.
- Can I buy a KTM 450 SX-F on MWMX without an account?
- Yes. Every listing is public: message the seller, make an offer or apply for finance straight from the page. An MWMX account adds saved searches, a Digital Garage for the service history and member pricing on parts once you own it.
- How do I sell my KTM 450 SX-F on MWMX?
- List it free from the Sell page in about five minutes: photos, hours, location and your price. No listing fee and no sale fee on bikes. The listing goes out to riders looking for a 450 SX-F and the MWMX Marketplace ads on Google.
Selling a KTM 450 SX-F?
List it free on the MWMX Marketplace. No listing fee, no sale fee, and buyers who actually ride. Takes five minutes.
List your bike free
