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40 Chain

Fail

Shoppers spend an estimated $85K a year here, so 40 Chain is a Fail.

Flapen Score
43
43 / 100
Ranks 5,360 of 7,287 Automotive niches · −6 vs the category median of 49
Market size
$85K/yr56K searches / yr
90-day growth
+2.3%search demand this quarter
Competition
71%top-5 click share · 9 brands · 13 sellers

Flapen Score

40 Chain against its category

The dotted line is the Automotive average. Past it, 40 Chain is stronger. Inside it, weaker.

43Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The 40 Chain market on Amazon at a glance

Shoppers on Amazon United States searched for 40 Chain 56K times last year and spent an estimated $85K. The top 5 brands take 89% of clicks. Flapen scores it 43 out of 100, a Fail.

01 · Demand

An estimated 9.5% of those searches ended in a purchase.

Shoppers searched for this 56K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 9.5% of those searches ended in a purchase. Searches in the last 90 days moved +2.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $85K a year.

Searches, last 12 months
56K
Growth, 90 days vs prior 90
+2.3%
Conversion, latest week
9.5%
Market size, estimated
$85Ka year
Peak month
April1.3× the quietest month
Top search term
40 chain30K searches a year

02 · Price

A sale here is worth $16.07.

Listings sell for $16.07 on average, from $8.52 to $25.70. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 500 to 750 of them. At $16.07 that is $8K to $12K a year per listing.

Average price
$16.07inside the $15 to $100 sweet spot
Price range
$8.52–$25.70
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
6K–8K
Units per listing a year
500–750
Revenue per listing a year
$8K–$12K
Returns
2.4%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

88% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 1.7% of listings are out of stock. The average listing ranks #557 within Parts. It carries 544 reviews at 4.52 stars, so a new listing needs social proof before a better product.

Sponsored listings
88%
Prime listings
100%
Out of stock, average day
1.7%
Average rank
#557in Parts
Average rating
4.52 starsAmazon United States average 4.42 stars
Average reviews
544per listing
Listings tracked
16

04 · Newcomers

Brands here are settling in.

The brands on the shelf have sold for 56 months on average, so the names here are settling in.

Launched, last 12 months
0
Successful launches
0Amazon's first-year sales bar
Average brand age
56 months

Products

Top 40 Chain products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 9, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 71% of clicks. A locked shelf that new listings rarely crack.

$0$9K$17K$26K$34K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

9 flat

Sellers

13

Est. top-5 brand share

89%

Top 20: 100%

Est. top-5 click share

71%

Top 20: 100%

Open market

7%

  • PGN Bearings40%
  • AZSSMUK17%
  • Belleone13%
  • Jeremywell10%
  • LCPQMZGH9%
  • findmall5%
  • Open — no brand owns it (3 brands, 7%)

Demand

40 Chain search demand

Weekly searches over the year, seasonality beneath. Pick a range.

1K750Spike '24Spike '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Search terms

Top 40 Chain search terms shoppers use

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

  • 40 chain30K/yr
  • #40 chain11K/yr
  • 40 roller chain12K/yr
  • #40 roller chain3K/yr

Reviews and returns

What reviews say buyers love and hate about 40 Chain

We read the reviews and the return reasons for every product selling here.

24%of positive reviews mention “Quality-Overall”
50%of negative reviews mention “Quality-Overall”
2.4%of orders come back
“Cheap JUNK”
A buyer, on “Quality-Overall”50% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

16 topics

NegativePositive

FAQ

Common 40 Chain questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data