53
disc brake
Worth a lookShows a fragmented shelf (top 5 take 12% of clicks), but high returns (6.3%) keeps it on the watch list.
Competition
Incredible12%top-5 click share — an open shelf
Avg price
Great$50.08avg listing price — sweet spot $15–$100
Price range
Good$4.76–$121.54cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good816.91avg incumbent reviews — the moat a new listing must climb
Market size
Good$333K$333K/yr · 380K searches
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+13.5%90-day search growth — must beat 0% to launch
Brand share
Okay82%top-5 brand share — brands hold most of the demand
Conversion
Bad1.8%search→purchase rate — share of searches ending in a sale
Returns
Bad6.3%return rate — above 5% kills the launch gate