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235/40/18

235/40/18 shows low returns (0.0%), but prices mostly outside the sweet spot ($68.01–$322.75) keeps it on the watch list.

Flapen Score

50
Worth a look

Top 44% of 7,287 Automotive niches · +1 vs the category median of 49

Market size 51Growth 41Conversion 20Competition 54Returns 100Price range 13Avg price 61Brand share 50Review moat 65Quality gap 42
This niche Category average · 7,287 niches

Is 235/40/18 profitable on Amazon?

According to Flapen's Amazon United States niche tracking, 235/40/18 is a $290K/yr Amazon United States market (128K searches/yr). The top 5 brands hold 75% of demand. Verdict: Worth a look — 50/100.

235/40/18: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved +12.7% over the last 90 days and 1.6% of searches end in a purchase.

$290K

revenue / yr

Units sold / yr4K
Search volume / yr+12.7%128K
Conversion rate1.6%
Avg price$142.01

Who owns the niche?

The top 5 brands hold 75% of demand, so 25% of the market is open.

25%

open market share

Brands · sellers16 · 33
Top-5 product click share52%
Open market25%
Avg brand age73 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.

0/100

page quality · 26 products

Sponsored placement73%
New entrants (1y)3· 2 succeeded
Avg rating4.5★
Avg reviews893

Top 235/40/18 products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.

$0$14K$29K$43K$58K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

16 falling

Sellers

33

Top-5 brand share

75%

Top 20: 100%

Top-5 click share

52%

Top 20: 92%

Open market

20%

  • Fullway26%
  • Lexani20%
  • Forceum14%
  • Continental8%
  • Aplus6%
  • Ironman5%

235/40/18 demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume128KCVR1.6%Products26Brands16Top 5 Brands75%OOS Rate5.8%Rating4.5★Reviews893Avg BSR#848
3K2KSpike '25Prime Day '25Black Friday '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Top 235/40/18 search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • 235/40r1863K/yr
  • 235/40/1817K/yr
  • 235 40 1815K/yr
  • 235/40r18 tires9K/yr
  • 235/40/18 tires9K/yr
  • 235 40 18 tires6K/yr
  • 235/40r18 91w4K/yr
  • 235/40zr185K/yr

What reviews say buyers love and hate about 235/40/18

What buyers mention most, as a share of all reviews.

What buyers love

94% of reviews
Quality-Overall34%

Good quality

Value For Money22%

Value for money is good

Wheel Quality18%

they ride good

Size-Overall8%

Fit perfect

Strength2%

still going strong with over 35,000 miles

What buyers complain about

63% of reviews
Durability25%

Questionable reliability

Smell13%

Smell of rubber

Quality-Overall13%

A lot of reviewers on here expect 5 star nascar level quality on $70 tires

Size-Overall13%

Amazon says they wont fit my car

235/40/18 return rate & reasons

Why buyers send it back, as a share of all return requests.

0.0%

Return rate

75%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Size-Overall
69%
2Advertised Vs Actual Product
7%
3Value For Money
5%
4Compatibility-Overall
5%
5Functionality-Overall
4%

Common 235/40/18 questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores 235/40/18 50/100 on Amazon United States — Worth a look. The niche generates $290K/yr across 26 tracked products. 2 of 3 products launched in the last 360 days are still selling. Search demand moved +12.7% over the last 90 days.
Search demand for 235/40/18 on Amazon United States is steady year-round — the busiest month runs 1.3× the quietest.