40
12.5 x 2.25 inner tube
Skip itPrices mostly outside the sweet spot ($6.70–$13.09) — this niche doesn't clear our bar today.
Conversion
Incredible18.1%search→purchase rate — share of searches ending in a sale
Growth
Great+73.6%90-day search growth — must beat 0% to launch
Returns
Good2.2%return rate — above 5% kills the launch gate
Avg price
Okay$10.42avg listing price — sweet spot $15–$100
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Brand share
Bad91%top-5 brand share — brand-locked demand
Review moat
Bad9,057.29avg incumbent reviews — the moat a new listing must climb
Market size
Bad$42K$42K/yr · 22K searches
Competition
Bad91%top-5 click share — a locked-up shelf
Price range
Bad$6.70–$13.09cheapest to priciest tracked listing — scored on the share inside $15–$100