KTM SX-E 5 - 2021 Specifications and Reviews

The 2021 KTM SX-E 5 is an electric sport motorcycle designed for young and beginner riders seeking an eco-friendly introduction to off-road riding. Powered by a permanent magnet motor producing 6.7 horsepower, it delivers accessible performance with instant torque and minimal maintenance. Known for its lightweight maneuverability and progressive suspension geometry, it excels in developing rider skills on varied terrain.

Not Rated stars Average rating: Not Rated from 0 votes
.

General information

CategorySport
Year2021
ModelKTM SX-E 5
 
 

Engine and Transmission Specifications

Transmission typeChain   (final drive)
Cooling systemAir
Torque13.8 Nm (1.4 kgf-m or 10.2 ft.lbs)
Power6.7 HP (4.9 kW) @ 3900 RPM
Engine detailsPermanent Magnet motor
Engine typeElectric

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Diameter160 mm (6.3 inches)
Front brakesSingle disc
Rear wheel travel185 mm (7.3 inches)
Rear SuspensionWP Xplor PDS shock absorber
Front wheel travel205 mm (8.1 inches)
Front SuspensionXACT 35 WP Upside-Down fork, Ø 35 mm
Rake (fork angle)24.0°
Frame typeChrome-molybdenum steel central-tube frame

Physical measures and capacities

Ground clearance252 mm (9.9 inches)
Seat height665 mm (26.2 inches) If adjustable, lowest setting.

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
CommentsCharging time 70 min. 21 Ah battery.
Color optionsOrange/Black/White/Blue

Performance Profile & Rider Fit

6.7 hp
Peak Power

Best For

Track20%
City5%
Cornering70%
Daily Riding5%
Touring0%
Passenger0%

Rider Profile

Best ForThis is a training bike built for young beginners just starting out in off-road riding, not a general-purpose rider profile.
PurposeDesigned purely for kids' motocross practice and skill development on dirt tracks, not for road or general recreational use.
Rider FitIts very low seat height, light electric powertrain, and minibike dimensions make it suitable only for children or very small, lightweight riders.
CharacterQuiet, low-maintenance, and instantly controllable thanks to its electric motor and multiple ride modes, letting young riders progress at a safe pace.
Not Ideal ForNot suitable for adults, road use, touring, or anyone seeking real speed or long-distance capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2021 KTM SX-E 5 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 665mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2021 KTM SX-E 5, with a cramped knee angle of around 55 degrees and a forward-leaning riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

Find bikes that fit your height →

Rider Reviews

Total comments: 1
64x64

MotorcycleDB Review

The 2021 KTM SX-E 5 is an electric motocross bike that offers impressive performance for younger riders. With its top-of-the-line engineering and design, this bike provides a smooth and powerful ride that is perfect for off-road adventures. The lightweight frame and powerful electric motor make it easy to handle, while the adjustable seat height allows for a comfortable fit for riders of all sizes. Additionally, the bike features a long-lasting lithium-ion battery that provides ample power for extended riding sessions. Overall, the 2021 KTM SX-E 5 is a top-notch electric motocross bike that is sure to impress both young riders and their parents. In conclusion, the 2021 KTM SX-E 5 is a fantastic option for young motocross enthusiasts who are looking for a high-performance electric bike. Its impressive power, lightweight design, and adjustable features make it a great choice for off-road riding. With its long-lasting battery and top-of-the-line engineering, the KTM SX-E 5 is a reliable and exciting option for riders who are ready to take their motocross skills to the next level.
Reply

Add a Comment


Please Login or Register if you would like to leave a comment.