45
disk brake
Skip itA small market ($39K/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$28.84avg listing price — sweet spot $15–$100
Price range
Great$8.12–$71.56cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great436.52avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Growth
Good+21.7%90-day search growth — must beat 0% to launch
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Returns
Okay4.6%return rate — above 5% kills the launch gate
Conversion
Bad1.4%search→purchase rate — share of searches ending in a sale
Market size
Bad$39K$39K/yr · 96K searches