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43

sd20

Skip it

A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Market size 22Growth 26Conversion 96Competition 0Returns 100Price range 95Avg price 95Brand share 0Review moat 91Quality gap 22

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible12.8%

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

Avg price

Incredible$42.33

avg listing price — sweet spot $15–$100

Price range

Incredible$16.73–$66.77

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

Review moat

Great184

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+0.7%

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

Market size

Bad$87K

$87K/yr · 16K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, sd20 is a $87K/yr Amazon United States market (16K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 43/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

sd20 market data

Units sold / yr
3K–3K
avg 500–750/product
Revenue / yr
$106K–$127K
units × avg price
Conversion rate
12.8%
Avg BSR
#702
Page quality
0%
Prime
75%
Sponsored
25%
Out of stock
0.0%
Avg brand age
88 months
Avg seller age
180 days

Competition & brand share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

2 flat

Sellers

7

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

0%

  • SPARTAN60%
  • Spartan40%

Demand

Weekly Amazon search volume, last 24 weeks — +0.7% search growth over the last 90 days.
350250Spike '26Feb '26Mar '26Mar '26Apr '26May '26Jun '26

Top sd20 search terms

  • sd20 degreaser3K/yr
  • sd204K/yr
  • sd-204K/yr
  • sd-20 all purpose degreaser2K/yr
  • sd 202K/yr
All search terms

Top sd20 products on Amazon

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

0%10%$9K20%$17K30%$26K40%$35K101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 4 tracked products in this niche — three views at once, no toggling.

What buyers say about sd20

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

What buyers love

Ease Of Cleaning40%

“Works great to clean the race car”

Quality-Overall21%

“Phenomenal product”

Advertised Vs Actual Product14%

“AS ADVERTISED”

De-Grease14%

“Works amazing to get grease off”

Value For Money5%

“it is affordable”

What buyers complain about

De-Grease33%

“grease off your car”

Common questions

Is sd20 profitable to sell on Amazon United States?
The niche generates $87K/yr across 4 tracked products. 90-day search growth is +0.7%. Flapen's verdict: Skip it (43/100).
How competitive is the sd20 niche?
2 brands and 7 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in sd20?
Top complaints mined from reviews: De-Grease. The return rate is 0.0%.
What does it cost to enter the sd20 niche?
Listings span $16.73–$66.77; the average listing price is $42.33 (sweet spot $15–$100). The average incumbent carries 184 reviews — the moat a new listing must climb.