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51

215/70r16

Worth a look

Shows low returns (0.1%), but weak search conversion (0.6%) keeps it on the watch list.

Market size 20Growth 41Conversion 8Competition 80Returns 100Price range 12Avg price 54Brand share 90Review moat 74Quality gap 33

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Brand share

Great45%

top-5 brand share — no brand owns this niche

Competition

Great35%

top-5 click share — an open shelf

Review moat

Good555.36

avg incumbent reviews — the moat a new listing must climb

Avg price

Good$161.73

avg listing price — sweet spot $15–$100

Growth

Okay+12.6%

90-day search growth — must beat 0% to launch

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Bad$80K

$80K/yr · 77K searches

Price range

Bad$62.70–$368.88

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Bad0.6%

search→purchase rate — share of searches ending in a sale

Competition

Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.

Brands

32 rising

Sellers

35

Top-5 brand share

45%

Open market

49%

  • Landspider12%
  • TRAVELSTAR11%
  • Prinx10%
  • Aplus8%
  • Fullway6%
  • Evoluxx5%

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%3%$2K6%$5K9%$7K12%$10K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)7 products missing review or click data not plotted

All 47 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 102 weeks — +12.6% search growth over the last 90 days.
2K2KSpike '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.2×

Reviews

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall34%

“Perfect quality tires”

Value For Money32%

“Good tires for the price”

Wheel Quality19%

“Great tires”

Advertised Vs Actual Product5%

“Exactly as ordered”

Size-Overall3%

“Fits perfectly”

Durability2%

“Durable”

Comfort-Overall1%

“good price comfortable ride”

Tread Pattern Pitch1%

“and good traction”

Grip0%

“The ride feels smooth and quiet, and the car has much better grip on the road, especially in rain”

Safety Standards0%

“My Camry feels safer”

What buyers complain about

Durability25%

“Last about a year and a quarter”

Smell17%

“stinks for support”

Quality-Overall17%

“Poor quality”

Advertised Vs Actual Product17%

“Definitely not as beefy looking as the picture”

Size-Overall8%

“just the wrong size from what I intended to ordee”

Top return reasons

Size-Overall78%
Compatibility-Overall7%
Advertised Vs Actual Product5%
Functionality-Overall3%
Quality-Overall2%
Value For Money2%
Thin1%
Durability1%
Maintenance And Repair1%