Which kit is better for a heavy rider or cargo?

The 500W kit. It is rated to 600 lbs, while the KEARIXM listing gives no load rating.

The KEARIXM states about 13.67 mph. The 500W kit does not publish a top speed and says only that it is tuned for safe trike riding.

Do I need to buy a battery separately?

Yes for both. The 500W kit is sold without a battery, and the KEARIXM kit is a motor kit only. Both run on 48V.

Is the KEARIXM worth it over the 500W kit?

It costs $19.17 less as of November 7, 2026 and adds a headlight and overcurrent protection. Pick it only if your trike has 26-inch wheels.

Will either kit fit my trike?

Check wheel size first. The 500W kit is for 20-inch wheels and the KEARIXM for 26-inch wheels, so they are not interchangeable.

Electric Trike Conversion Kit 500W vs KEARIXM 750W Trike Conversion Kit

Buy the KEARIXM 750W if you have 26-inch wheels and want more power, a chain drive and a lower price. Buy the 500W kit if your trike runs 20-inch wheels or you need the higher 600 lb load rating. As of November 7, 2026, the KEARIXM is $102.83 at eBay and the 500W kit is $122.00 at Amazon. Neither price includes a battery, so budget for a 48V pack either way.

Today the KEARIXM 750W Trike Conversion Kit costs $19.17 less at its best price.

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