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wideband o2 sensor kit
Skip itBrand-locked demand (top 5 brands take 96% of clicks) — this niche doesn't clear our bar today.
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Review moat
Good515.43avg incumbent reviews — the moat a new listing must climb
Market size
Good$606K$606K/yr · 468K searches
Avg price
Good$131.99avg listing price — sweet spot $15–$100
Price range
Okay$35.86–$265.30cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+1.5%90-day search growth — must beat 0% to launch
Returns
Bad5.1%return rate — above 5% kills the launch gate
Competition
Bad76%top-5 click share — a locked-up shelf
Conversion
Bad1.0%search→purchase rate — share of searches ending in a sale
Brand share
Bad96%top-5 brand share — brand-locked demand