2025 KTM SX-E 5

New generation of e-power for the young generation of motocrossers.

The new silent assassin in the 50cc ranks? KTM calls its SX-E 5 an alternative to the gas-powered 50 SX.KTM

Overview

KTM calls it an alternative to its popular gas-powered 50cc two-stroke dirt bike. But much like the 50 SX, the KTM SX-E 5 is not a toy—it is a potent motocross machine designed for competitive young racers. But the electric powerplant allows for six different ride modes, along with hidden parental controls below the seat, which means it can accommodate beginner riders as well as experienced little rippers.

The SX-E 5 is injected with its share of updates for 2025, including a reworked chassis, water-cooling, and 30% more riding time. As a single-speed with no clutch, the only thing SX-E 5 riders need to worry about is stop and go. Disc brakes handle the stopping, and true to KTM form, fully adjustable WP Xact components handle suspension. Adjustable seat height can be varied by 25mm (1 inch), and the suspension position can be lowered for an additional 25mm drop for a wide range of versatility for riders of many sizes.

2025 KTM SX-E 5 can vary its power output and seat height to accommodate a wide range of riders.KTM

Pricing and Variants

The 2025 KTM SX-E 5 is available in orange for $5,649.

Competition

News and Reviews

2025 KTM SX-E 5 Claimed Specs

MSRP: $5,649
Motor: Liquid-cooled, 48V, brushless DC permanent magnet
Battery: Lithium-ion, 21Ah
Battery Capacity: 0.907kWh
Horsepower: 2kW (2.7 hp) @ 3,200 rpm, 5kW (6.7 hp) peak output
Torque: 13.8 Nm (10.2 lb.-ft.)
Charging Type: 80–240V / 50–60 Hz
Charging Time: 45 min. (0–80%) / 70 min. (0–100%)
Transmission/Final Drive: 1-speed electric/chain
Frame: Chromoly steel central tube
Front Suspension: 35mm fully adjustable WP Xact air fork; 8.1 in. travel
Rear Suspension: PDS mounted; fully adjustable WP Xact shock; 7.6 in. travel
Front Brake: 160mm disc
Rear Brake: 160mm disc
Wheels, Front/Rear: Spoked; 12 in./10 in.
Tires, Front/Rear: Maxxis MX-ST; 60/100-12 / 2.75-10
Rake/Trail: 24.0°/NA
Wheelbase: 40.5 in.
Ground Clearance: 10.1 in.
Seat Height: 25.0–26.9 in.
Range: 2 hr. (beginner)/30 min. (race pace)
Wet Weight: 89 lb.
Contact: ktm.com