Summary of Stromer ST3 E-Bike Review

Stromer ST3 e-bike. This sleek, high-speed bike is designed around the popular ST5, with a frame that’s almost identical. It boasts thru-axles, boost hub spacing, and an integrated display on the top tube. This bike is a beast – not as light as other models, but incredibly solid and quiet, with an integrated battery that’s hidden in the down tube for a seamless look.

The ST3 features a gearless direct drive hub motor, which is quieter and offers regenerative braking – a rare feature that adds to its appeal. The integrated lights are super bright, enhancing safety, especially since the rear light intensifies when braking. However, this level of sophistication comes at a price – around $7,500 USD, and with the custom Wren air suspension fork, it climbs to about $8,500.

The Wren suspension fork, although stiff and robust, lacks the adjustability found in other models. The ST3 is primarily sold through shops, with a strong presence in Europe. The company headquarters are solar-powered, and they charge all Stromer e-bike batteries with solar energy before shipping.

The ST3 offers a range of customization options, including different frame sizes, colors (black and white), and accessory choices like suspension forks and stems. It has semi-swept back handlebars, Ergon locking grips, and an Ergon saddle, ensuring comfort during rides. However, there’s no slap guard on this model, which might be a concern for some riders.

The drivetrain is impressive, with 11 sprockets offering a broad range of pedal speeds, ideal for reaching speeds up to 28 mph. The bike can be licensed like a moped in some regions, further blurring the line between e-bike and vehicle. However, the weight is substantial at 71.8 pounds, which includes the suspension fork and mirror.

The tires are moped-rated Pirelli tires, providing excellent durability and comfort, with a tire pressure range of 29 to 43.5 PSI. Dialing in the fork and tire pressure is essential for optimal performance. The bike’s heavy weight adds to its stability but also makes it more challenging to start and maneuver.

The brakes are top-notch, with TRP three-finger levers and 203mm carbon steel rotors. The quad-piston calipers up front provide exceptional stopping power, crucial for a high-speed e-bike. The bike also features advanced torque sensing, a gyroscopic inclined sensor, and an accelerometer, ensuring responsive and dynamic performance.

Powering up the bike reveals a comprehensive display that includes battery percentage, speed, and assist levels. The integrated lights are on at all times, which can be a bit annoying but adds to safety. The battery, removable and available in two sizes, offers significant capacity but adds to the bike’s weight.

Despite its heft, the ST3 provides a smooth and quiet ride, even on rough terrain. The integrated USB charging port is a nice touch, though the app could use some improvements. The regenerative braking system and high-quality components make this e-bike feel like a luxury vehicle. Ideal for city dwellers looking for a car replacement, the Stromer ST3 is a top-tier option that justifies its price with performance and features.

Stromer ST3 E-Bike Information

  1. Range: Up to 90 miles
  2. Top Speed: 28 mph (45 km/h)
  3. Motor Size: 600W
  4. Battery Size: 48V, available in 15.9 Ah and 20.5 Ah
  5. Frame: Aluminum alloy, hydroformed tubing
  6. Warranty: Typically 2 years
  7. Safety Certified: Yes
  8. Digital Display: Yes, integrated on the top tube

Full Specifications

  • Miles Per Charge: Up to 90 miles
  • Max Speed: 28 mph (45 km/h)
  • Max Rider Weight: Not specified
  • Waterproof Rating: Not specified
  • Motor Size: 600W
  • Battery Size: 48V, available in 15.9 Ah and 20.5 Ah
  • Tire Size: 27.5 x 2.35 inches (Pirelli)
  • Product Weight: 71.8 pounds
  • Dimensions: Not specified
  • Warranty Length: Typically 2 years
  • Frame Material: Aluminum alloy, hydroformed tubing
  • Color(s): Black, White
  • Inner Tubes: Not specified
  • Brakes: Hydraulic, TRP three-finger levers, 203mm rotors
  • Charge Time: Not specified
  • Suspension: Wren air suspension fork (optional)
  • Display: Integrated digital display on the top tube
  • Headlight: Integrated, always on, 600 lumens default, 900 lumens bright mode
  • Charger: 4.5A, weighs 2.5 pounds