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Orange 300 Dirt Bike Motorcycles for Sale in Wisconsin

Looking to buy a 300 dirt bike in Wisconsin? Browse our extensive inventory of new and used 300 dirt bike from local dealers and private sellers in Wisconsin. Compare prices, models, trims, options and specifications between different dirt bikes on Cycle Trader.
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8 300 Motorcycles For Sale

2025 KTM SX 300 SX in Waukesha, WI
$9,599

New 2025 KTM Dirt Bike

SX 300 SX
Stock # M8730
2025 KTM SX 300, 2025 KTM 300 SX <p>When it comes to power-to-weight ratios, the KTM 300 SX writes the rule book. Now with learnings taken directly from the KTM Factory Racing teams, and a care package labeled "Go get 'em!", the 2025 KTM 300 SX is engineered for one task alone - to lead from the front.</p><p><strong>Features may include:</strong></p><p><strong>BEFORE THE GATE</strong></p><strong>CLICK INTO ACTION</strong><ul><li>Easy Suspension Adjustment</li></ul><p>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.</p><strong>NO JETS - ONLY ROCKET SHIPS</strong><ul><li>Electronic Fuel Injection</li></ul><p>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. </p><strong>CHUGGA CHUGGA, RING DING DING!</strong><ul><li>Electric Start</li></ul><p>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 300 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 ***. </p><p><strong>START STRONG</strong></p><strong>SMOOTHER POWER DELIVERY</strong><ul><li>EFI + Power Valve</li></ul><p>With EFI comes great rideability. Along with the electronic fuel injection and a power valve on the KTM 300 SX, allowing for more usable power throughout the rev range. Smoother power means better traction. Better traction means holeshot heaven!</p><strong>UNMATCHED PERFORMANCE</strong><ul><li>Performance</li></ul><p>The new 300 cc 2-stroke powerhouse brings a new choice of weapon into the MX Open category and provides more choice for racers looking for maximum power at the least possible weight. Along with low maintenance costs, an overall engine weight of just 23,9 kg, the 2025 KTM 300 SX provides pure performance. And then some. </p><strong>PICK YOUR POWER</strong><ul><li>Selectable Maps</li></ul><p>The 2025 KTM 300 SX features a map select switch allowing the racer to switch between 2 engine maps. Map 1 provides a linear, predictable power delivery, while Map 2 gives it the full beans with crisp, explosive power output. </p><p><strong>CALM UNDER FIRE</strong></p><strong>SLEEKER FOR YOU TO SCRUB CLEANER</strong><ul><li>Absolute Contr
Action Power Sports
Waukesha, WI
2025 KTM 300 SX SX in Johnson Creek, WI
$9,599

New 2025 KTM Dirt Bike

300 SX SX
Stock # 386997
2025 KTM 300 SX, 2025 KTM 300 SX <p>When it comes to power-to-weight ratios, the KTM 300 SX writes the rule book. Now with learnings taken directly from the KTM Factory Racing teams, and a care package labeled "Go get 'em!", the 2025 KTM 300 SX is engineered for one task alone - to lead from the front.</p><p><strong>Features may include:</strong></p><p><strong>BEFORE THE GATE</p></strong><strong>CLICK INTO ACTION</strong><ul><li>Easy Suspension Adjustment</ul></li><p>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.</p><strong>NO JETS - ONLY ROCKET SHIPS</strong><ul><li>Electronic Fuel Injection</ul></li><p>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. </p><strong>CHUGGA CHUGGA, RING DING DING!</strong><ul><li>Electric Start</ul></li><p>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 300 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 ***. </p><p><strong>START STRONG</p></strong><strong>SMOOTHER POWER DELIVERY</strong><ul><li>EFI + Power Valve</ul></li><p>With EFI comes great rideability. Along with the electronic fuel injection and a power valve on the KTM 300 SX, allowing for more usable power throughout the rev range. Smoother power means better traction. Better traction means holeshot heaven!</p><strong>UNMATCHED PERFORMANCE</strong><ul><li>Performance</ul></li><p>The new 300 cc 2-stroke powerhouse brings a new choice of weapon into the MX Open category and provides more choice for racers looking for maximum power at the least possible weight. Along with low maintenance costs, an overall engine weight of just 23,9 kg, the 2025 KTM 300 SX provides pure performance. And then some. </p><strong>PICK YOUR POWER</strong><ul><li>Selectable Maps</ul></li><p>The 2025 KTM 300 SX features a map select switch allowing the racer to switch between 2 engine maps. Map 1 provides a linear, predictable power delivery, while Map 2 gives it the full beans with crisp, explosive power output. </p><p><strong>CALM UNDER FIRE</p></strong><strong>SLEEKER FOR YOU TO SCRUB CLEANER</strong><ul><li>Absolute Control</ul></li><p>Get ready for a ful
Rob's Performance Motorsports
Johnson Creek, WI
2025 KTM 300 SX SX in Johnson Creek, WI
$9,599

New 2025 KTM Dirt Bike

300 SX SX
Stock # 390912
2025 KTM 300 SX, 2025 KTM 300 SX <p>When it comes to power-to-weight ratios, the KTM 300 SX writes the rule book. Now with learnings taken directly from the KTM Factory Racing teams, and a care package labeled "Go get 'em!", the 2025 KTM 300 SX is engineered for one task alone - to lead from the front.</p><p><strong>Features may include:</strong></p><p><strong>BEFORE THE GATE</p></strong><strong>CLICK INTO ACTION</strong><ul><li>Easy Suspension Adjustment</ul></li><p>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.</p><strong>NO JETS - ONLY ROCKET SHIPS</strong><ul><li>Electronic Fuel Injection</ul></li><p>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. </p><strong>CHUGGA CHUGGA, RING DING DING!</strong><ul><li>Electric Start</ul></li><p>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 300 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 ***. </p><p><strong>START STRONG</p></strong><strong>SMOOTHER POWER DELIVERY</strong><ul><li>EFI + Power Valve</ul></li><p>With EFI comes great rideability. Along with the electronic fuel injection and a power valve on the KTM 300 SX, allowing for more usable power throughout the rev range. Smoother power means better traction. Better traction means holeshot heaven!</p><strong>UNMATCHED PERFORMANCE</strong><ul><li>Performance</ul></li><p>The new 300 cc 2-stroke powerhouse brings a new choice of weapon into the MX Open category and provides more choice for racers looking for maximum power at the least possible weight. Along with low maintenance costs, an overall engine weight of just 23,9 kg, the 2025 KTM 300 SX provides pure performance. And then some. </p><strong>PICK YOUR POWER</strong><ul><li>Selectable Maps</ul></li><p>The 2025 KTM 300 SX features a map select switch allowing the racer to switch between 2 engine maps. Map 1 provides a linear, predictable power delivery, while Map 2 gives it the full beans with crisp, explosive power output. </p><p><strong>CALM UNDER FIRE</p></strong><strong>SLEEKER FOR YOU TO SCRUB CLEANER</strong><ul><li>Absolute Control</ul></li><p>Get ready for a ful
Rob's Performance Motorsports
Johnson Creek, WI
2025 KTM 300 SX SX in Johnson Creek, WI
$9,599

New 2025 KTM Dirt Bike

300 SX SX
Stock # 384341
2025 KTM 300 SX, 2025 KTM 300 SX <p>When it comes to power-to-weight ratios, the KTM 300 SX writes the rule book. Now with learnings taken directly from the KTM Factory Racing teams, and a care package labeled "Go get 'em!", the 2025 KTM 300 SX is engineered for one task alone - to lead from the front.</p><p><strong>Features may include:</strong></p><p><strong>BEFORE THE GATE</p></strong><strong>CLICK INTO ACTION</strong><ul><li>Easy Suspension Adjustment</ul></li><p>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.</p><strong>NO JETS - ONLY ROCKET SHIPS</strong><ul><li>Electronic Fuel Injection</ul></li><p>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. </p><strong>CHUGGA CHUGGA, RING DING DING!</strong><ul><li>Electric Start</ul></li><p>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 300 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 ***. </p><p><strong>START STRONG</p></strong><strong>SMOOTHER POWER DELIVERY</strong><ul><li>EFI + Power Valve</ul></li><p>With EFI comes great rideability. Along with the electronic fuel injection and a power valve on the KTM 300 SX, allowing for more usable power throughout the rev range. Smoother power means better traction. Better traction means holeshot heaven!</p><strong>UNMATCHED PERFORMANCE</strong><ul><li>Performance</ul></li><p>The new 300 cc 2-stroke powerhouse brings a new choice of weapon into the MX Open category and provides more choice for racers looking for maximum power at the least possible weight. Along with low maintenance costs, an overall engine weight of just 23,9 kg, the 2025 KTM 300 SX provides pure performance. And then some. </p><strong>PICK YOUR POWER</strong><ul><li>Selectable Maps</ul></li><p>The 2025 KTM 300 SX features a map select switch allowing the racer to switch between 2 engine maps. Map 1 provides a linear, predictable power delivery, while Map 2 gives it the full beans with crisp, explosive power output. </p><p><strong>CALM UNDER FIRE</p></strong><strong>SLEEKER FOR YOU TO SCRUB CLEANER</strong><ul><li>Absolute Control</ul></li><p>Get ready for a ful
Rob's Performance Motorsports
Johnson Creek, WI
2024 KTM 300 XC-W XC-W in Johnson Creek, WI
$10,194

New 2024 KTM Dirt Bike

300 XC-W XC-W
Stock # 349722
2024 KTM 300 XC-W, 2024 KTM 300 XC-W <p>The KTM 300 XC-W is one of the most recognized names at the sharp end of hard enduro. With a bulletproof, fuel-injected 2-stroke engine churning out masses of low-down torque and top-end fury, it's the ideal companion when tackling challenging terrain. Now with all-new suspension, a new frame and fresh bodywork, the 2024 KTM 300 XC-W is ready to take on the world's toughtest enduro terrain.</p><strong>Features may include:</strong><p><strong>PREPERATION MAKES PERFECT</strong></p><strong>SETTING THE SAG</strong><ul><li>Adjustability</li></ul><p>Getting READY TO RACE has never been easier. Thanks in part to its all-new suspension, the 2024 KTM XC-W range boasts totally tool-free suspension setup at both ends. At the rear, the all-new shock absorber design features hand-adjustable dual compression control, allowing riders to adjust high- and low-speed settings in a matter of seconds. On the front, the forks are also easily adjusted thanks to hand-adjustable clickers on the bottom of the fork shoe and on the fork top cap, allowing riders to change settings on the fly without the need for any tools.</p><strong>DEEP BREATH</strong><ul><li>Air filter box</li></ul><p>Maximum airflow with minimal water intrusion, a new air filter box is designed with precisely positioned inlet ducts aimed at preventing air deformation and maintaining filter protection. An enduro-specific splash protector under the airbox prevents water or dirt from splashing up from the rear wheel, while the Twin Air filter and air filter support design feature a simple fail-proof mounting system for safe and accurate filter installation, ensuring the air filter is easily accessed, without tools, for fast track-side maintenance.</p><p><strong>BENCHMARK LAP</strong></p><strong>TORQUE ABOUT IT</strong><ul><li>Engine</li></ul><p>Let's start with the numbers; 49 hp, 43,8 Nm and 24.6 kg. This new 300cc 2-stroke powerplant not only brings a new choice into the E3 Enduro category, but remains the idea choice for Enduro riders wanting maximum power and torque at the least possible weight. Another reason why the KTM 300 XC-W engine sets the benchmark in the competitive Enduro E3 class and in hard enduro races all over the world.</p><strong>FUELING SPEED</strong><ul><li>Throttle Body Injection</li></ul><p>Forget TPI, the 2024 KTM 2-stroke Enduro models feature all-new electronically-controlled Throttle Body Injection - or TBI. The ECU, together with a new Keihin 39mm throttle body, calculates the ideal air-fuel mixture by constantly analyzing water temperature, air temperature, ambient pressure, and pressure within the crankcase, the rpm, and the throttle position to ensure the smoothest and most consistent power delivery in the most gnarly of enduro conditions.</p><p><strong>ON THE CHARGE</strong></p><strong>BUILT TO BE THE BACKBONE</strong><ul><li>Frame</li></ul><p>Specifically engineered for longitudinal rigidity, the 2024 2-stroke KTM XC-W range i
Rob's Performance Motorsports
Johnson Creek, WI
2024 KTM 300 SX SX in Johnson Creek, WI
$9,399

New 2024 KTM Dirt Bike

300 SX SX
Stock # 347424
2024 KTM 300 SX, 2024 KTM 300 SX <p>Maximum power at the least possible weight, amplified by low maintenance costs and smooth, linear power delivery - the 2024 KTM 300 SX is set to take the MX Open category back to school. Churning out massive power, the KTM 300 SX sets the benchmark when it comes to power to weight ratios. Could the 2024 KTM 300 SX be the new Open Class president?</p><p><strong>Features may include:</strong></p><strong>BEFORE THE GATE</strong><ul><li>Easy Suspension Adjustment</li></ul><p>Get dialed in! The 2024 KTM SX range boasts totally tool-free suspension setup at both ends. Thanks to the shock absorber design featuring hand-adjustable dual compression control, it allows riders to adjust high- and low-speed settings in a matter of seconds. On the front end, the forks are also easily adjusted thanks to a single air pressure preload valve, as well as through easy access click adjusters for compression and rebound. We'll even throw the air pump in as standard.</p><strong>START STRONG</strong><ul><li>EFI + Power Valve</li></ul><p>With EFI comes great rideability. Along with the electronic fuel injection, a electronic Power Valve has also been fitted to the KTM 300 SX, allowing for more usable power throughout the rev range. Smoother power means better traction. Better traction means holeshot heaven!</p><strong>CALM UNDER FIRE</strong><ul><li>Absolute Control</li></ul><p>No matter how gnarly the track is, you'll find complete confidence thanks to the frame design that has not only been engineered for longitudinal rigidity but also repositions rotating mass closer to the center of gravity. The shock mounting also provides improved anti-squat behavior for better traction out of corners, while the footpeg mounting position has moved inwards for less risk of hooking up in deep ruts or when scrubbing jumps.</p><strong>HIT THE BIG STUFF</strong><ul><li>Traction </li></ul><p>Ready to rip your arms out of the sockets? Together with the benefits of mass centralization and the anti-squat behavior of the chassis, the 2024 KTM 300 SX gets its power down perfectly when tearing out of corners.</p><strong>MAINTAINING MOMENTUM</strong><ul><li>Consistency</li></ul><p>A WP XACT shock absorber provides unmatched consistency lap after lap, thanks to low-friction SKF linkage seals and advanced damping characteristics for unsurpassed traction and energy absorption.</p>
Rob's Performance Motorsports
Johnson Creek, WI
2024 KTM 300 SX SX in Johnson Creek, WI
$9,399

New 2024 KTM Dirt Bike

300 SX SX
Stock # 337838
2024 KTM 300 SX, 2024 KTM 300 SX <p>Maximum power at the least possible weight, amplified by low maintenance costs and smooth, linear power delivery - the KTM 300 SX is set to take the MX Open category back to school. Churning out massive power, the KTM 300 SX sets the benchmark when it comes to power to weight ratios. Could the KTM 300 SX be the new Open Class president?</p><p><strong>Features may include:</strong></p><strong>BEFORE THE GATE</strong><ul><li>Easy Suspension Adjustment</li></ul><p>Get dialed in! The KTM SX range boasts totally tool-free suspension setup at both ends. Thanks to the shock absorber design featuring hand-adjustable dual compression control, it allows riders to adjust high- and low-speed settings in a matter of seconds. On the front end, the forks are also easily adjusted thanks to a single air pressure preload valve, as well as through easy access click adjusters for compression and rebound. We'll even throw the air pump in as standard.</p><strong>START STRONG</strong><ul><li>EFI + Power Valve</li></ul><p>With EFI comes great rideability. Along with the electronic fuel injection, a electronic Power Valve has also been fitted to the KTM 300 SX, allowing for more usable power throughout the rev range. Smoother power means better traction. Better traction means holeshot heaven!</p><strong>CALM UNDER FIRE</strong><ul><li>Absolute Control</li></ul><p>No matter how gnarly the track is, you'll find complete confidence thanks to the frame design that has not only been engineered for longitudinal rigidity but also repositions rotating mass closer to the center of gravity. The shock mounting also provides improved anti-squat behavior for better traction out of corners, while the footpeg mounting position has moved inwards for less risk of hooking up in deep ruts or when scrubbing jumps.</p><strong>HIT THE BIG STUFF</strong><ul><li>Traction </li></ul><p>Ready to rip your arms out of the sockets? Together with the benefits of mass centralization and the anti-squat behavior of the chassis, the KTM 300 SX gets its power down perfectly when tearing out of corners.</p><strong>MAINTAINING MOMENTUM</strong><ul><li>Consistency</li></ul><p>A WP XACT shock absorber provides unmatched consistency lap after lap, thanks to low-friction SKF linkage seals and advanced damping characteristics for unsurpassed traction and energy absorption.</p>
Rob's Performance Motorsports
Johnson Creek, WI
2024 KTM 300 XC-W XC-W in Johnson Creek, WI
$11,499

New 2024 KTM Dirt Bike

300 XC-W XC-W
Stock # 339196
2024 KTM 300 XC-W, 2024 KTM 300 XC-W <p>The KTM 300 XC-W is one of the most recognized names at the sharp end of hard enduro. With a bulletproof, fuel-injected 2-stroke engine churning out masses of low-down torque and top-end fury, it's the ideal companion when tackling challenging terrain. Now with all-new suspension, a new frame and fresh bodywork, the 2024 KTM 300 XC-W is ready to take on the world's toughtest enduro terrain.</p><strong>Features may include:</strong><p><strong>PREPERATION MAKES PERFECT</strong></p><strong>SETTING THE SAG</strong><ul><li>Adjustability</li></ul><p>Getting READY TO RACE has never been easier. Thanks in part to its all-new suspension, the 2024 KTM XC-W range boasts totally tool-free suspension setup at both ends. At the rear, the all-new shock absorber design features hand-adjustable dual compression control, allowing riders to adjust high- and low-speed settings in a matter of seconds. On the front, the forks are also easily adjusted thanks to hand-adjustable clickers on the bottom of the fork shoe and on the fork top cap, allowing riders to change settings on the fly without the need for any tools.</p><strong>DEEP BREATH</strong><ul><li>Air filter box</li></ul><p>Maximum airflow with minimal water intrusion, a new air filter box is designed with precisely positioned inlet ducts aimed at preventing air deformation and maintaining filter protection. An enduro-specific splash protector under the airbox prevents water or dirt from splashing up from the rear wheel, while the Twin Air filter and air filter support design feature a simple fail-proof mounting system for safe and accurate filter installation, ensuring the air filter is easily accessed, without tools, for fast track-side maintenance.</p><p><strong>BENCHMARK LAP</strong></p><strong>TORQUE ABOUT IT</strong><ul><li>Engine</li></ul><p>Let's start with the numbers; 49 hp, 43,8 Nm and 24.6 kg. This new 300cc 2-stroke powerplant not only brings a new choice into the E3 Enduro category, but remains the idea choice for Enduro riders wanting maximum power and torque at the least possible weight. Another reason why the KTM 300 XC-W engine sets the benchmark in the competitive Enduro E3 class and in hard enduro races all over the world.</p><strong>FUELING SPEED</strong><ul><li>Throttle Body Injection</li></ul><p>?Forget TPI, the ?2024 KTM ?2-stroke ?Enduro models ?feature? all-new electronically?-controlled Throttle Body Injection? - or TBI. The ECU??, together with ?a new Keihin? ?39mm throttle body?,?calculates? the ?ideal air-fuel mixture by constantly analyzing water temperature, air temperature, ambient pressure, ?and ?pressure within the crankcase, ?the ?rpm, and the throttle position? to ensure the smoothest and most consistent power delivery? in the most gnarly of ?enduro conditions.</p><p><strong>ON THE CHARGE</strong></p><strong>BUILT TO BE THE BACKBONE</strong><ul><li>Frame</li></ul><p>Specifically engineered for longitudinal rigidity, the 2024 2-
Rob's Performance Motorsports
Johnson Creek, WI
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