Wattage doesn’t tell you how a motor climbs — torque does. Here’s why a mid-drive kit outclimbs a same-rated hub motor, how to match a kit to your gradient (using Caerphilly Mountain as a real benchmark), and what gearing and battery choices actually matter on hills.
Forget torque and efficiency for a moment — here’s the pure money question: what a mid drive vs hub motor conversion actually costs over three years once drivetrain wear and fitting are factored in.
From a £300 hub motor commuter build to a £1,300+ performance rig — a full breakdown of what an e-bike conversion actually costs in the UK, including the fitting and battery costs most guides leave out.
DIY or book it in? The real difference isn’t just price — it’s the install warranty, realistic turnaround time, and what happens if you get partway through a self-fit and get stuck.
Guides • Hub Motors • Buying Advice Best Rear Hub Motor eBike Conversion Kit: 250W to 8000W Compared By George — Qualified Mechanic & eBike
Guides • Conversion Kits • Buying Advice How to Choose an eBike Conversion Kit: Hub Motor vs Mid Drive, Wattage & Battery By George —
Choosing between a rear hub motor and a mid-drive for your e-bike build? We compare torque, efficiency, hill climbing, maintenance and cost so you can pick the right motor for your riding style and budget.
Step-by-step guide to installing an e-bike conversion kit at home. Covers wheel removal, motor fitting, battery mounting, controller wiring and first power-on checks — suitable for hub motor and mid-drive kits.
Ready to build a mountain e-bike? We cover motor choice, battery sizing, frame compatibility and trail-legal builds — everything you need to plan your MTB conversion.
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Pick your voltage, capacity, cells, connector — even a custom shape.
