A good conversion should make your familiar bike more useful, not turn it into a noisy project with a short-lived battery. That is the real test in any Bafang motor review. Bafang mid-drives have earned a strong reputation because they can deliver meaningful hill-climbing help, useful range and a natural pedalling position without forcing you to buy a completely new e-bike.
They are not automatically the right answer for every rider or every frame. The best result comes from matching the motor, battery, gearing and installation to how you actually ride. Get that combination right and an older commuter, hybrid, touring bike or hardtail can become a reliable machine for the daily journey.
Bafang motor review: the short answer
Bafang makes capable, widely supported e-bike motors with options for relaxed riding, demanding hills and heavier loads. Their mid-drive systems are particularly appealing because they use the bike’s existing drivetrain. That means the motor can take advantage of the lower gears when climbing, rather than trying to force a hub motor up a steep incline at low speed.
For riders who want to convert a suitable bike, a Bafang mid-drive is often a very practical choice. Parts availability is good, the systems are familiar to experienced conversion workshops, and there is a broad choice of displays, batteries and set-up options. A correctly specified build feels purposeful rather than improvised.
The trade-off is that mid-drives place more load through the chain, cassette and chainring. They reward sensible shifting and regular maintenance. If you regularly select the wrong gear before a hill or leave a worn chain in service for too long, the drivetrain will tell you about it.
Why the ride feels different from a hub motor
With a rear hub motor, assistance comes directly through the wheel. It is simple and can be an excellent fit for flatter routes, but it does not benefit from your bicycle’s gears. A Bafang mid-drive sits around the bottom bracket and adds power through the chain, just as your legs do.
On a climb, that matters. Select an easier gear, keep your cadence comfortable and the motor can work efficiently rather than labouring. For commuting through rolling terrain, carrying panniers or getting back into cycling after an injury, this is often the difference between using the bike occasionally and relying on it several days a week.
The weight is also kept low and central. Handling remains more familiar than it can with a heavy rear-wheel conversion, especially when moving slowly through traffic, starting on an incline or lifting the bike over a kerb. There is still extra weight to manage, of course, and a battery mounted high on a rear rack can affect the feel of the bike. A well-positioned frame battery is usually the better option where the frame allows it.
Which Bafang motor suits your riding?
The right model is not always the one with the biggest number on the box. It depends on route, rider weight, cargo, local rules and the condition of the bike being converted.
Lower-powered mid-drives are well suited to everyday assistance. They provide the extra push that takes the sting out of headwinds, bridges and repeated stop-start riding, while keeping the bike civilised and efficient. For many commuters and leisure riders, this is the sweet spot.
Higher-output units bring stronger acceleration and more climbing support, particularly for off-road private-land use, loaded cargo builds or very steep terrain. But greater power demands more from the battery, chain, brakes, tyres and frame. It can also move a bicycle outside the UK’s electrically assisted pedal cycle rules if its rated continuous power or assistance speed is above the permitted limit.
For use on public roads in Great Britain, an EAPC must meet specific requirements, including a maximum continuous rated motor power of 250 watts and assistance that cuts out at 15.5 mph. Pedals must be capable of propelling the bike. A higher-powered conversion may be suitable only where the law allows, such as private land with permission, and it should never be assumed to be road legal. This is a point worth checking before buying, not after fitting.
Battery choice decides whether the conversion works
A motor gets the attention, but the battery determines much of the real-world experience. Capacity is measured in watt-hours, and more watt-hours generally means more range. It does not guarantee it. Cold weather, tyre pressure, terrain, rider input, total load and assistance level all change the result.
For a short, flatter commute, a compact battery may be plenty. For long days, hills or family cargo, choosing too small a battery is false economy. You end up charging more often, running the pack deeper and feeling reluctant to use the assistance when you need it most.
Quality matters as much as capacity. A properly specified battery with a suitable battery-management system, secure mounting and compatible charger is the foundation of a dependable build. Cheap, unknown packs are not a worthwhile gamble. They can have inconsistent cells, poor weather resistance and limited support when something goes wrong.
Think about charging before the installation starts. Can you bring the bike indoors? Will the battery be removable? Is there a secure, dry place to charge it? Those ordinary details shape whether an e-bike becomes part of your routine.
Fitting matters more than the kit list
Many bikes can accept a Bafang conversion, but not every bike should. The bottom-bracket shell has to be compatible, the frame needs enough clearance around the motor, and the final chainline must be checked. Suspension designs, unusual bottom brackets, carbon frames and bikes with badly worn components all need closer assessment.
Brake condition is non-negotiable. More average speed and more bike weight mean more demand on braking. A conversion may call for fresh pads, correctly aligned calipers, new cables or hydraulic brake servicing before the motor is fitted. Tyres, wheels and spokes deserve the same attention, particularly on bikes that will carry luggage or see rough roads.
The tidy details matter too: secure cable routing, protected connectors, correctly fitted brake cut-offs where used, and a display positioned where it is easy to read without distracting you. A professional installation is not only about making the motor run. It is about producing a bike that remains safe, quiet and straightforward to service.
At The Bike Shack, we look at the whole bicycle before recommending a conversion. Sometimes the answer is a mid-drive kit. Sometimes a lighter option, a hub motor or straightforward repair work will make better financial sense. That is the sort of advice that keeps a rider happy long after collection day.
Living with a Bafang mid-drive
The day-to-day rule is simple: shift before the hill gets steep. Ease off pedal pressure briefly when changing gear, just as you would on any bike, and avoid stamping on the pedals in a high gear with maximum assistance selected. This protects the chain and cassette while making the ride smoother.
Keep the drivetrain clean and lubricated, check chain wear regularly and replace worn parts before they damage the rest of the system. Mid-drive riders usually see consumables wear faster than they would on an unassisted bike, especially in wet weather or on hilly routes. That is normal maintenance, not necessarily a fault with the motor.
Look after the battery too. Avoid leaving it in extreme heat or cold, keep the terminals clean and dry, and use the correct charger. If the bike will sit unused for a while, follow the battery supplier’s storage guidance rather than leaving it empty or permanently on charge.
Bafang systems can be straightforward to diagnose when supported by the right tools and experience, but error codes, intermittent cut-outs and display issues should be investigated properly. The fault may be a connector, sensor, battery or configuration issue rather than the motor itself. Guesswork can turn a small workshop job into an expensive replacement.
The verdict for practical riders
A Bafang mid-drive is a strong choice when you want your existing bike to handle longer rides, hills and everyday loads with less effort. Its biggest strengths are efficient climbing, familiar bike handling and the flexibility to build around your budget and route. Its main compromises are drivetrain wear, the need for careful compatibility checks and the importance of staying within the legal specification for public-road use.
Choose the motor after assessing the bike, not before. A clean, well-adjusted drivetrain, dependable brakes and a battery sized for your real journeys will do more for your confidence than chasing the highest power figure. The best conversion is the one that gets you riding more often, arrives home with charge to spare and still feels like your bike.