2011 Zero X Review


The 2011 Zero X Dirt is the world’s cleanest dirt bike, while the bike itself may get a little dirty, it produce no direct greenhouse gases. This dirt bike is the first of its kind and gives the rider comparable riding features like those seen in normal carbureted dirt bikes. The Zero X Dirt has the handling that is similar to its gas-powered counterpart as well as the agility needed to take on courses that traditional dirt bikes ride. It has a very clean and smooth look to it, giving slight notice that it is not your typical gas-powered dirt bike. However, it still maintains the traditional dirt bike form of a long sweeping rear tire and suspension, high handle bars and high seat.

The Zero X Dirt bike uses a high efficiency, forced air-cooled, axial flux permanent magnet, brushed electric motor that produces approximately 25 electric horses and nearly 50 lb-ft of torque. This may seem like it is lacking a bit of power which it may be compared to it gas-powered alternative but the bike only comes in at 185 pounds which makes the missing horsepower much less noticeable. The bike also has no clutch since there is no shifting needed. The transmission is a single-speed system that gives the rider a decent amount of torque from start to max speed. This is also convenient since a decrease in moving parts means increased reliability and life span. The braking system provides a good amount of braking power with the two-piston calipers in the front with 8.66 inch discs in the front and a single-piston caliper with a 8.66 inch disc in the rear.

The Zero X comes in two versions, the X Sport and the X Extreme. The main difference is engine horsepower and torque output as well as an alternate suspension.

The Zero X Dirt gives the rider instant acceleration at a weight of only 185 pounds. This bike is a high performance electric motorcycle that uses Z-Force technology to boast 25 horsepower and 50 lb-ft of torque. This motorcycle is very stealthy and will have you climbing mountains, cutting through streams and hitting jumps like never before. The Zero X is built from the ground up, meaning every part was meticulously chosen for quality and function. The custom-valved suspension, direct drive gearing and weight optimized components give riders unparalleled control of the terrain.

Lightweight, silent and quick, the 2011 Zero X Dirt lets you ride the trails with new possibilities and in ways that you couldn’t before.

New For 2011

  • High efficiency, forced air-cooled, axial flux permanent magnet, brushed motor that delivers 25 electric horses and nearly 50 lb-ft of torque.
  • A single-speed transmission that seamlessly goes from idle to racing in seconds.
  • A quality braking system that lets you control the bike around turns and on jumps.
  • More than an hour of total track riding time or approximately 20 miles of city street riding.
  • A signature, fully adjustable suspension with over eight inches of travel in both the front and rear for extreme capabilities when racing and hitting the jumps

2011 Zero X Specs

  • Model: X Dirt
  • Engine Type: High efficiency, forced air-cooled, axial flux permanent magnet, brushed motor
  • Bore and Stroke: N/A
  • Compression ratio: N/A
  • Valve Train: N/A
  • Induction: N/A
  • Ignition: Electric
  • Transmission: Clutchless one-speed
  • Final Drive: Chain
  • Fuel Capacity: N/A
  • Estimated Fuel Economy: 34-69 minutes (trail)/21.7 miles (city)
  • Brakes (Front): Two-piston hydraulic caliper with 8.66 inch disc
  • Brakes (Rear): Single-piston hydraulic caliper with 8.66 inch disc
  • Suspension (Front): 1.5 inch inverted forks with adjustable compression and rebound damping and 8.3 inches of travel
  • Suspension (Rear): Direct-link shock with adjustable spring preload, compression and rebound damping, and 8.71 inches of travel
  • Wheelbase: 55.5 inches
  • Rake: 26.4 degrees
  • Trail: 3.5 inches
  • Seat Height: 33.3
  • Curb Weight: 185 pounds
  • Tires (Front): 70/100-19
  • Tires (Rear): 90/100-16


  • Motorcycle stand built by Matrix using 100 percent ABS plastic. This stand is not only lightweight and strong to support the motorcycle but allows for bike storage, maintenance, showcasing, cleaning and charging.
  • A belt to chain conversion kit uses a 13-tooth front sprocket and 71-tooth rear sprocket to match the factory belt gearing ratio and also enhance the motorcycle's rule over the off-road track.
  • Branded grips made from soft rubber the mount very easily to the handlebars. They are made by Pro Grip and give added comfort and grip to increase rider interface.
  • A high handlebar increases the height of the motorcycle by four inches.
  • Rear Shock by Fox Racing Shox is a specially tuned version of the Fox Podium C2 shock to improve the motorcycle's handling capabilities. It uses high grade steel, aircraft grade aluminum and a 1.45 inch bore. It has been shown to decrease track times by several seconds.

Key Competitors For The 2011 Zero X

  • BMW C Evolution
  • Roskva
  • Freeride E Electric
  • Brammo Enertia