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BACK ON THE ATTACK

2025 KTM 150 SX

2025 KTM 150 SX

Finance Available

Our Price: £9399 +OTR


It's back! After a 2-year absence, the 2025 KTM 150 SX is once again ready to tear into your favorite MX track. Get ready to experience what it feels like to be a marble launched from a slingshot. The KTM 150 SX pulls hard from the bottom, gallops in the middle, and sings at the top.

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FEATURES

1. FEATURE

ELECTRONIC FUEL INJECTION

Pre-mix gets a remix across the 2-stroke KTM SX range, with Electronic Fuel Injection setting the standard. Now there's no more fiddly jetting setup pre-race, And thanks to the Keihin EFI and reed valve case design, you can be guaranteed of laying down optimal power at any altitude, all of the time.

2. FEATURE

ELECTRIC START

Picture this; You're 7 laps into an absolute ripper of a race. You miss your line and end up stalling in a deep rut. But you don't sweat it. All you do is press the starter button and you blast off again to take the final flag. This is the reality on the 2025 KTM 150 SX. Thanks to a 12,8V 2 Ah lithium ion battery is placed under the rider's seat, a high-quality stator & pickup and super robust design, the only thing you'll be kicking - is ass.

3. FEATURE

EASY SUSPENSION ADJUSTMENT

As always, the suspension boasts an easy tool-free setup at both ends, ensuring you chase down the podium in total control. On the rear, a hand-adjustable dual compression control allows riders to adjust high- and low-speed settings in a matter of seconds. The forks on the front end are also easily adjusted thanks to hand-adjustable clickers on the bottom of the fork shoe and top cap.

4. FEATURE

EFI + POWER VALVE

With EFI comes great rideability. Along with the electronic fuel injection and a power valve on the KTM 150 SX, allowing for more usable power throughout the rev range. Smoother power means better traction. Better traction means holeshot heaven!

5. FEATURE

PERFORMANCE

Many parts of the 150 SX engine have been rearranged, modified, or developed from the ground up. With an overall weight of just below 18 kg, this is a powerhouse bar none. Designed to provide more torque than its stablemate, the KTM 125 SX, it remains true to its nature, without losing its typical high-revving lightweight 2-stroke character.

6. FEATURE

SELECTABLE MAPS

The 2025 KTM 150 SX features a map select switch allowing the racer to switch between 2 engine maps. The White Map - or Map 1 - provides a linear, predictable power delivery ideally suited to attack hard-packed dirt with a leaner air-fuel mixture. Alternatively, the Green Map - Mapping 2 - is tuned for loose, thick sandy conditions with a richer mix.

7. FEATURE

WP XACT FORK

Let's get the technical parts out of the way first; the 48 mm WP XACT AER forks fitted to the 2025 KTM SX and SX-F line-up features a capsulated air spring and pressurized oil chamber for progressive and consistent damping, while oil and air bypasses reduce pressure peaks. In combination with the mid-valve damping system, all this provides exceptional feedback and rider comfort. The fork also boasts new settings, which not only compliment the updated frame and rear linkage, but ensures stellar p

8. FEATURE

WP XACT SHOCK

Keeping things in check at the rear, the WP XACT rear shock has also undergone some changes for 2025 using settings directly from the KTM Factory Racing Teams The improved frame and shock geometry mean more ground clearance at the linkage, making it less susceptible to bottoming out. While we're on the topic, smaller diameter linkage bolts save weight, while new linkage seals refine rear shock response and advanced damping characteristics.

9. FEATURE

ENERGY ABSORPTION

Besides the expertly crafted, hydro-formed, laser-cut, and robot-welded frame being engineered to provide exceptional rider feedback and straight-line stability, it consists of specifically calculated parameters of longitudinal and torsional flex. This means the frame acts as a "shock absorber" of sorts, making for a less harsh ride, resulting in less rider fatigue over many hard laps.

10. FEATURE

ABSOLUTE CONTROL

Get ready for a full-on berm assault. The 2025 KTM SX and SX-F machines have received major frame updates directly from Factory Racing efforts. For starters, the frame area around the rear shock mount has been updated and made more streamlined, with new engine mounts and cut-outs for improved chassis flex. The front area of the frame is also updated. with a different wall thickness than the previous model year, with renewed engine mounts. This adds up to a 300g weight saving and improved flex fo

TECHNICAL DETAILS

ENGINE

ENGINE TYPE
1-cylinder, 2-stroke engine

DISPLACEMENT
143.99

CERTIFICATION
Euro 5

CLUTCH
Wet multi-disc DS clutch, Brembo hydraulics

GEARBOX
6 Speed

FINAL DRIVE
Chain

COOLING SYSTEM
Liquid cooled

STARTING
Electric

CHASSIS

FRAME
Central double-cradle-type 25CrMo4 steel

FRONT SUSPENSION
WP XACT-USD (AER), Ø 48 mm

FRONT BRAKE
260 mm

REAR SUSPENSION
WP XACT Monoshock with linkage

REAR BRAKE
220 mm

FINANCE

HP (Hire Purchase)

MONTHLY PAYMENT

Preferred Deposit

Price: £199
Max Price: £9448

Preferred Term

Month: 24
Month: 60

Terms & Conditions (HP)
Cash Price £9448.00. Total Deposit . Total Amount of Credit . Payments of . Duration of Agreement is . Fees of £1.00 are included in the payments shown. Total Amount Payable is . Annual Fixed Interest Rate of %. Actual rate will be adjusted to include the deferred final payment. APR %.
Finance is provided by Motonovo Finance, One Central Square, Cardiff, CF10 1FS. This is not a commitment to lend and applications are subject to an underwriting decision.

MotoNovo Finance limited. Registered in Wales under Company No 11556144. Registered Office: One Central Square, Cardiff, Wales, United Kingdom, CF10 1FS. Authorised and regulated by the Financial Conduct Authority. Indemnities may be required in certain circumstances. Finance is only available to UK residents aged 18 or over, subject to status.Terms and Conditions apply. On a PCP product you do not have to pay the Final Payment ONLY if you return the vehicle at the end of the agreement, you have paid all other amounts due, the vehicle is in good condition and has been serviced in accordance with the service book. Excess Mileage charges may apply along with other terms and conditions, which will be contained within the finance agreement. MotoGB Limited is authorised and regulated by the Financial Conduct Authority (FCA 661247) and acts as a credit broker and not a lender. We may receive commission from the lender that does not affect the amount you pay under your credit agreement. Please ask if you need more information.


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