Phatfour FLX - Yellow

Phatfour FLX at GOfatbike

The Phatfour FLX is a hand-built fatbike with a classic, timeless look, shown here in yellow. The design is inspired by an old motorcycle from the early 20th century, giving the FLX a distinctive and quirky character. Beneath that classic exterior lies a sturdy steel frame and a modern electric drive. Below you can read what the FLX can do, what it excels at, and what to consider before choosing it.

Design and build quality

The FLX stands out with its classic lines, inspired by a 1906 motorcycle. The frame is made of steel and hand-built, which you can see in the solid, well-finished craftsmanship. The whole bike meets current EU standards for electric bicycles. The yellow version gives the FLX a cheerful, eye-catching look, while the design remains calm and timeless. If you love a bike with character and a recognizable silhouette, the FLX is a great choice.

Riding position and comfort

The FLX has a wide, two-person saddle, so you can sit comfortably and even take someone along on the back if you want. You sit upright, in a relaxed posture that stays comfortable on longer rides. The extra-wide tires, together with the saddle, absorb some of the bumps, making the ride smooth. For rides through the city and on quiet roads, that comfort is nice. If you’re looking for a distinctly sporty, lightweight bike, the FLX’s setup is deliberately sturdier and more comfortable.

Range and battery

The FLX runs on a battery that lasts long enough for daily rides and longer trips. Consider the stated range as a guideline, not a fixed number of kilometers: your actual range depends on your weight, the wind, the level of assistance, and the terrain. If you often ride with two people or against the wind, the battery will drain faster. By riding calmly and shifting wisely, you usually get more out of a charge.

Motor, speed, and regulations

The FLX has an electric motor with a convenient 2-speed function and supports up to 25 km/h. The motor assists when you pedal, after which you continue under your own power. With this setup, the FLX is considered a regular electric bike, for which you do not need a license, registration, or helmet. Do not modify the bike to go faster: this will void its status as a regular e-bike and you will lose your warranty. The 2-speed function helps you start smoothly and then pedal efficiently.

Tires, brakes, and riding feel

The extra-wide tires give the FLX a stable, smooth ride and plenty of grip, whether you’re riding on pavement or choosing an unpaved path. Depending on the model, you brake with reliable disc brakes that bring you to a controlled stop. The sturdy steel construction provides a solid feel on the road, with the caveat that steel and the wide tires make the bike quite heavy. You’ll notice this mostly when lifting or storing it, less so while riding.

Ordering at GOfatbike

The FLX suits you if you like a fatbike with a classic look, a sturdy steel build, and the comfort of a two-person saddle. This page is about the yellow model; the FLX is also available in other colors. If you’re looking for the lightest possible bike, a sturdy steel fatbike is less logical, but for character and comfort, this is a great choice. The Phatfour FLX is available at GOfatbike.

Also check out: Phatfour fatbikes, all fatbikes and fatbike accessories.