A wobbling or out-of-true fatbike wheel, or play in the axle, is usually caused by loose axle nuts, worn bearings, a bent rim, or a warped brake rotor.
Guide
A fatbike tire that keeps going flat usually still has glass in the casing, a leaking valve, or a shifted tire. This is how you find and fix the cause.
A soft brake lever or poor braking power on a fatbike is usually caused by worn or contaminated pads, air in the line, or a stretched cable.
If your fatbike no longer works after rain or riding through water, moisture has usually gotten into a connector, the display, the throttle, or the controlle...
Creaking when pedaling usually comes from the pedals, crank, or bottom bracket; rattling from a loose chain guard, battery, mudguard, or bolt. This is how yo...
A fatbike that shifts poorly or jumps gears usually has a stretched shifter cable, a bent derailleur hanger, or a worn chain. This is how you find the cause ...
If your fatbike's headlight or taillight isn't working, it's usually a loose connector, a damaged cable, the light switch, or the light itself. Here's how to...
A fatbike battery that won't charge usually has an issue with the charger, the charging connector, or the temperature, and sometimes with the battery itself....
Squealing or dragging disc brakes are usually caused by dirty or worn brake pads, a misaligned brake caliper, or a warped brake disc. Here’s how to find the ...
Fatbike maintenance at Sache Bikes costs €55, €85 or €125 per service, a winter check €9.95 and individual repairs start at around €25. Here are all the guid...
If your fatbike's throttle or PAS sensor isn't working, it's usually a stuck brake sensor, a loose or wet connector, or a faulty throttle. Here you'll find o...
A chain that drops off or slips is usually caused by a loose or worn chain, worn sprockets, a poorly adjusted or bent derailleur, or a misaligned rear wheel....
The lighting on a fatbike is almost always connected to the cable loom: this is how you choose the right lights.
Fatbikes are popular with thieves. Taking the right precautions can significantly reduce the risk.
A flat fatbike tire is usually caused by a sharp object, a worn tire, or insufficient tire pressure. Here you can read how to replace the inner tube yourself...
A fatbike chain wears out faster due to the extra power from the motor. Here’s how to spot wear, maintain the chain, and replace it before the cassette and s...
A battery left discharged or in freezing conditions can lose capacity within a few weeks. Here’s how to prevent that.
Rain and cold are hard on your fatbike's battery, connectors, chain and brakes. A few good habits can prevent malfunctions, and a winter check will ensure th...
By using a standard checklist for tires, brakes, chain, bolts, plugs and lights, you can prevent most fatbike breakdowns. Anything you don't do yourself can ...
The two most popular fatbikes share a number of mechanical parts, but almost never the electrical ones.
Voltage, current and plug: the three things you check for a safe charger.
The color of the motor connector is the detail that determines whether a controller is compatible.
New gears and fresh grease: that's how you make your motor quiet again.
A treadle sensor is inexpensive and can be replaced within an hour. Here’s how to do it.
Replacing a controller is not difficult if you choose the right model and follow a consistent method.
A spongy brake lever on hydraulic fat bike brakes usually means air in the system or old brake fluid. Here you can read how bleeding works, what fluid you ne...
With a few tools and fifteen minutes, you can replace the brake pads yourself. Here’s how.
A fatbike display that does nothing or shows an error code usually indicates a power or communication problem: battery, connector, intermediate cable, or con...
If the pedal assist doesn't work while the display is on, the problem is usually with a brake sensor, the magnet ring, the pedal sensor, or the interwire. Th...
A fatbike that cuts out while riding usually has a loose connection at the battery or connectors, or a battery that sags under load. This is how you find the...
A fatbike motor that hums, ticks, or slips usually has worn gears, a glazed brake disc, or bearing play. This is how you identify the cause and get it repaired.
If your fatbike won't start, the problem is usually with the power supply: battery, battery lock, contact points, or a connector. Follow these steps to check...
When is an electric fatbike a bicycle with pedal assist, and when does it become a moped requiring registration?
The parts that are most frequently replaced on the Ouxi V8 and how to choose the right version for your bike.
A faulty controller often causes no power or a jerking motor, but the problem is usually with the battery, connectors, or sensors first. Here is how to check...
How to choose the right tire pressure for your 20x4 fatbike tire, recognize a worn tire, and choose the tread pattern that suits your rides.
Fatbike brake pads wear out quickly due to weight and the weather. Here’s how to identify worn pads, choose the right type, and have them replaced.
A fatbike battery slowly loses capacity through charging and over time; how quickly depends mainly on usage, temperature, and storage. Here you can read how ...
Model, version, plug and dimensions: the four things to check before ordering a part for your fatbike.