E-bike conversion kits

Retrofit systems that electrify a regular bike — the one genuine product trend visible in the Fix Home catalog: friction/tire-roller drives (bottle-battery + handlebar controller, ~18 mi range), rear-frame motor adapters, and the notable skarper-style disc-brake drive (replaces the rear rotor, ~37 mi, 15 mph, cadence-responsive). Tradeoff across all: modest range/speed vs. keeping your existing bike and "natural riding sensation."

Source: report