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KirbEbike workshop

E-bike conversion guides

Fitting, batteries, motors, controllers and UK rules — practical guides from the team that builds and supports KirbEbike conversion kits.

234 guides

52V 2000W vs 2600W Ebike Conversion Kit: Which Upgrade Actually Makes Sense? LatestComparison

52V 2000W vs 2600W Ebike Conversion Kit: Which Upgrade Actually Makes Sense?

Both kits sit on the same 52V platform, so this is not a story about 600 extra watts. The meaningful difference is controller current — 35A against 50A...Read the guide
52V 25Ah vs 30Ah Battery: Range, Weight, Charge Time and Frame Fit Batteries & Charging

52V 25Ah vs 30Ah Battery: Range, Weight, Charge Time and Frame Fit

Both packs run at the same nominal voltage, so the difference is stored energy: 1,300Wh against 1,560Wh. The 20% more energy comes with more weight, more charging time... KirbEbike 52V 2000W E-Bike Kit Review: Battery Range, Hill Starts, Heat and App Control Buyer's Guide

KirbEbike 52V 2000W E-Bike Kit Review: Battery Range, Hill Starts, Heat and App Control

Our own kit, reviewed plainly: range by battery size, hill starts, motor heat, what the Ride Power app changes, fitting and the UK legal position. We say which... FOC Sine-Wave vs Square-Wave E-Bike Controller: Noise, Heat, Efficiency and Ride Feel Comparison

FOC Sine-Wave vs Square-Wave E-Bike Controller: Noise, Heat, Efficiency and Ride Feel

The difference is how the controller feeds power to the motor. A square-wave controller switches in six sharp steps, which you can hear and feel; a sine-wave or... E-Bike Conversion Kit Maintenance Cost: What Wears Out and What Can Be Replaced Buyer's Guide

E-Bike Conversion Kit Maintenance Cost: What Wears Out and What Can Be Replaced

Most of what wears out on a converted bike is ordinary bicycle wear happening faster. What decides the long-term cost is not the wear itself but whether each... App-Programmable E-Bike Conversion Kits: What You Can Tune and Why It Matters Buyer's Guide

App-Programmable E-Bike Conversion Kits: What You Can Tune and Why It Matters

A programmable controller lets you decide how the bike delivers the power it already has. That is a control feature, not a speed feature, and the distinction matters... Torque Sensor vs Cadence Sensor: Which Conversion Kit Feels Natural? Buyer's Guide

Torque Sensor vs Cadence Sensor: Which Conversion Kit Feels Natural?

A cadence sensor asks whether you are pedalling. A torque sensor asks how hard. That single difference decides how the bike feels at every start, on every hill,... How to Tune a 2000W E-Bike Controller: DC Current, Acceleration Strength and Ride Profiles Maintenance & Repair

How to Tune a 2000W E-Bike Controller: DC Current, Acceleration Strength and Ride Profiles

Tuning a high-power controller is not about finding the maximum. It is about deciding how much current the system can safely supply, then shaping how quickly that current... Triangle vs Downtube vs Rear-Rack Battery: Which Placement Suits Your Bike? Batteries & Charging

Triangle vs Downtube vs Rear-Rack Battery: Which Placement Suits Your Bike?

Placement is a fit decision before it is a capacity decision. The space inside your frame, the mounting points it actually has and where the weight ends up... Geared Hub vs Direct-Drive: Which E-Bike Conversion Motor Should You Buy? Ebike Conversion Kit

Geared Hub vs Direct-Drive: Which E-Bike Conversion Motor Should You Buy?

One mechanical difference explains almost every trade-off between these two motors: a geared hub has an internal clutch, and a direct drive does not. The clutch is why... Can You Use an E-Bike Conversion Kit With Rim Brakes or V-Brakes? Ebike Conversion Kit

Can You Use an E-Bike Conversion Kit With Rim Brakes or V-Brakes?

Rim brakes do not rule out a conversion. One specification decides it: whether the motor wheel you order has a machined braking surface your pads can grip. A... Brompton 74mm E-Bike Conversion Kit: Fit, Fold, Added Weight and Real Range Buyer's Guide

Brompton 74mm E-Bike Conversion Kit: Fit, Fold, Added Weight and Real Range

A Brompton needs a Brompton-specific kit. The front fork is 74mm rather than the usual 100mm, the wheel is 16-inch, and anything that survives the fold has to...

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