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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.

246 guides

E-Bike Conversion Kit for Step-Through Bikes: Battery Placement, Frame Space and Handling Buyer's Guide

E-Bike Conversion Kit for Step-Through Bikes: Battery Placement, Frame Space and Handling

On a step-through, the battery decides the build. The low, open frame that makes the bike easy to mount also removes the space most conversion kits assume, so... How to Match an E-Bike Motor and Battery: Hub vs Mid-Drive Batteries & Charging

How to Match an E-Bike Motor and Battery: Hub vs Mid-Drive

A reliable conversion is one matched system: the bike must accept the motor, and the battery must match the controller’s voltage, current demand, energy needs, connectors, mounting space... Best E-Bike Conversion Kit for Hybrid Bikes: 250W, 500W, 750W or 1000W? Buyer's Guide

Best E-Bike Conversion Kit for Hybrid Bikes: 250W, 500W, 750W or 1000W?

Buy the lowest power tier that does the job. Wattage does not set speed, torque or reliability on its own, and the gradient you actually ride decides far... How to Choose a Used Donor Bike for an E-Bike Conversion Buyer's Guide

How to Choose a Used Donor Bike for an E-Bike Conversion

The best donor bike is not the most expensive one. It is a correctly sized, structurally sound used bike that needs few repairs and leaves a clear path... 27.5 vs 29 for an E-Bike Conversion: Hub Motor Guide Buyer's Guide

27.5 vs 29 for an E-Bike Conversion: Hub Motor Guide

For a hub-motor conversion, wheel size changes more than handling. A 27.5-inch wheel gives slightly more force at the tyre and lets the motor spin faster at low... Quick-Release vs Thru-Axle: Will an E-Bike Hub-Motor Kit Fit Your Bike? Buyer's Guide

Quick-Release vs Thru-Axle: Will an E-Bike Hub-Motor Kit Fit Your Bike?

Identify the axle interface before anything else — before wattage, before battery size, before wheel diameter. It is the one check that can rule a conversion out entirely,... Will an E-Bike Hub Motor Work With 8, 9, 10, 11 or 12-Speed Gears? Ebike Conversion Kit

Will an E-Bike Hub Motor Work With 8, 9, 10, 11 or 12-Speed Gears?

Matching gear counts prove nothing. A rear hub motor takes either a screw-on freewheel or a cassette — and if it takes a cassette, the freehub standard behind... 1000W vs 2000W E-Bike Conversion Kit: The Real Difference in Battery, Brakes and Bike Weight Batteries & Charging

1000W vs 2000W E-Bike Conversion Kit: The Real Difference in Battery, Brakes and Bike Weight

A 2000W conversion kit does not merely add a more powerful motor. It normally changes the battery current, the controller, the motor-wheel weight, the braking requirement, the loads... E-Bike Conversion Kit With Battery vs Motor-Only Kit: True Cost, Compatibility and Risk Buyer's Guide

E-Bike Conversion Kit With Battery vs Motor-Only Kit: True Cost, Compatibility and Risk

A motor-only kit wins on the advertised price and loses on everything that has to be true before the bike moves. The battery, the charger, the mount, the... 750W vs 1000W E-Bike Kit: Which Upgrade Makes Sense? Ebike Conversion Kit

750W vs 1000W E-Bike Kit: Which Upgrade Makes Sense?

A 750W kit is usually the more practical choice for moderate hills, mixed riding and riders who value efficiency. A 1000W kit makes more sense when the bike... 500W vs 750W E-Bike Kit: Which Should You Buy? Ebike Conversion Kit

500W vs 750W E-Bike Kit: Which Should You Buy?

A 750W label does not automatically mean a faster or better conversion kit. The practical difference depends on whether the wattage is nominal or peak, the battery voltage,... Electric Bike Battery Guide: Power, Range & Choice Batteries & Charging

Electric Bike Battery Guide: Power, Range & Choice

The right electric bike battery is the pack that matches your motor and controller voltage, supplies enough current for the system, physically fits the bike, and holds enough...

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