- Finance
- Shopping Tools
- Dealer













KTM 150 SX 2021
Mountain Motorsports
Gadsden , Alabama
Pay Cash
& Start PurchaseContact Dealer
& Schedule VisitPre-qualify and finance in advance
No impact on your credit and save time at our Gadsden store.At Mountain Motorsports in Gadsden
See it, jump aboard at our Gadsden store.Pay with cash or your own financing
Start purchase online then pick it up at our Gadsden store.Powersports Details
Condition
used
Hours
N/A
Type
Dirtbike
Fuel Type
N/A
Manufacturer
KTM
Model
150 SX

Powersport Details
| Condition | used |
|---|---|
| Type | Dirtbike |
| Manufacturer | KTM |
| Model | 150 SX |
| Year | 2021 |
| Location | Gadsden , AL |
| Boatzon Stock Number | 1778039281429 |
Powersport Description
2021 KTM 150 SX
WIDE OPEN TRACK ATTACKWith the agility of a 125 and a healthy dose of extra power, the KTM 150 SX is a lively package ready to take on the 250 cc 4-strokes. From within its dynamic lightweight chassis, the compact engine produces class-leading torque and power. Everything about this motorcycle screams high-performance fun and it goes into battle as the ultimate on-track competitor.
Features may include:ENGINE & EXHAUST
Power progression- ENGINE
The pure exhilaration that this bike's engine delivers warranted continued production. As it shares many of its key components with the class-leading 125, the cylinder, cylinder head and piston unit can now also be fitted on a 125 cc engine base, converting it to a 150 SX without having to replace the crankshaft. Compact and powerful, this innovative 2-stroke engine is a lightweight powerhouse that just makes perfect sense.
- CYLINDER
At the heart of the 150 cc engine is a 58 mm bore cylinder. It features an innovative power valve unit with a sophisticated mechanism designed for the lateral support exhaust ports. The exhaust port layout enhances engine performance, while the precise machining of the upper contour of the exhaust port ensures accurate port timing. The two component cylinder head works in complete harmony with the cylinder to deliver outstanding performance across the entire rev range.
CHASSIS
Control at the core- FRAME
The frame is professionally crafted from hydro-formed chromium molybdenum steel tubes that are robot welded, ensuring the highest levels of consistent quality. The stiffness has been precisely tailored for the most dynamic handling, and works in perfect harmony with the suspension to provide nimble agility without losing high-speed stability. The frame also features 'no dirt' footpegs, which have a simple but effective self-cleaning system that ensures the footpegs return to their original position, providing complete control in all conditions. All SX frames feature the same highly durable powder coating as the KTM Factory machines and come with standard frame protectors. The subframe is made from lightweight aluminum, providing rear fender stability and strong support for the rider at little extra weight.
- SWINGARM
The one-piece swingarm is manufactured using a gravity die-cast production process for exceptional strength at the lowest possible weight. It offers a wide range of adjustment for the rear wheel, allowing for a shorter wheelbase on tighter, twisty tracks, or a longer wheelbase for greater stability on longer, more choppy tracks. The swingarm's chain measurement markings are visible from above, making adjustment simpler and more accurate.
ERGONOMICS & COMFORT
Comfort meets performance- SEAT
All KTM SX models feature a seat that perfectly matches the range's dynamic performance-oriented ergonomics. The seat cover features silicone strips that provide better feel and grip for the rider. The seat is conveniently fixed to the bike using one long, lateral screw, making it secure and easy to handle.
We offer the details and availability of listings in good faith, however, Boatzon is not liable for the quality, description, or pricing of this listing. This vessel is offered subject to prior sale, price change, or withdrawal without notice. If you have concerns about the information, images, or accuracy contained in this listing, you can report this listing by emailing us at Support@Boatzon.com
Engine Details
| Number of Engines | 1 |
|---|---|
| Warranty Till | No Warranty |
Easy Ways To Pay
How Buying Online Works
Copyright © 2026 Boatzon™. All Rights Reserved





