Is derailleur profitable to sell on Amazon United States?

The niche generates $133K/yr across 22 tracked products. 90-day search growth is +50.1%. Flapen's verdict: Skip it (45/100).

How competitive is the derailleur niche?

5 brands and 54 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in derailleur?

Top complaints mined from reviews: Assembly/Installation, Quality-Overall, Adjustability/Rotatability/Reclining. The return rate is 3.4%.

When does demand for derailleur peak?

Demand peaks in Aug–Sep–Oct; the busiest month runs 3.1× the quietest.

What does it cost to enter the derailleur niche?

Listings span $10.62–$50.03; the average listing price is $21.97 (sweet spot $15–$100). The average incumbent carries 556 reviews — the moat a new listing must climb.

derailleur

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Avg price

Great$21.97

avg listing price — sweet spot $15–$100

Price range

Great$10.62–$50.03

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

Review moat

Good556.32

avg incumbent reviews — the moat a new listing must climb

Growth

Good+50.1%

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

Returns

Okay3.4%

return rate — above 5% kills the launch gate

Competition

Okay60%

top-5 click share — leaders hold, buyers still browse

Conversion

Okay3.1%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$133K

$133K/yr · 196K searches

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, derailleur is a $133K/yr Amazon United States market (196K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug–Sep–Oct. Verdict: Skip it — 45/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

derailleur market data

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: $132K–$176K; units × avg price
Conversion rate: 3.1%
Avg BSR: #31
Page quality: 0%
Prime: 100%
Sponsored: 82%
Out of stock: 0.0%
Avg brand age: 48 months
Avg seller age: 177 days

Competition & brand share

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

Brands

5 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

60%

Top 20: 97%

Open market

Relwears54%
SHIMANO33%
RainFlowwer8%
microSHIFT3%
Aikolesa2%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +50.1% search growth over the last 90 days.

Peak months: Aug, Sep, Oct · busiest ÷ quietest = 3.1×

Open Trend

Top derailleur search terms

shimano derailleur26K/yr +62.4%1.7% conv.
derailleur25K/yr +33.0%1.2% conv.
7 speed derailleur17K/yr +72.4%2.6% conv.
bike derailleur15K/yr +70.2%1.6% conv.
rear derailleur17K/yr +27.4%1.6% conv.
shimano derailleur 7 speed8K/yr +88.4%3.5% conv.
shimano 7 speed derailleur11K/yr +67.2%3.6% conv.
shimano rear derailleur9K/yr +44.0%2.0% conv.
desviador trasero para bicicleta10K/yr +9.8%0.8% conv.
rear bike derailleurs9K/yr -1.0%0.9% conv.

All search terms

Top derailleur 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 22 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Relwears Tourney Rear Derailleur RD-TY300 6/7Speed Rear Derailleur Direct Mount for Mountain Bike Road Bike Snowmobile Trail Bike

Relwears$19.464.4★250 rev

Shimano Rear Derailleur RD-TX800 7/8 SPD Direct Attach Bla

SHIMANO$21.724.5★1,082 rev

Relwears Altus RD-M310 Rear Derailleur 7/8 Speed Bike Rear Derailleur Direct Mount for Mountain Bike Road Bike Most Models

Relwears$28.484.6★123 rev

Bike Rear Derailleur TY300 Direct Mount 6/7 Speed for Mountain Bicycle

RainFlowwer$18.284.8★81 rev

Bike Rear Derailleur RD-TZ31A 6/7 Speed Derailleur Hanger Mount for Mountain Commuter Commuter Folding Bike

Relwears$17.084.6★180 rev

Newest

by launch date

6/7 Speed Bike Rear Derailleur RD-TY300 7 Speed derailleur Bicycle Rear Derailleur with Direct Mount for Mountain Bike Road Bikes

Aikolesa$18.4637 rev

1y ago

Relwears Tourney Rear Derailleur RD-TY300 6/7Speed Rear Derailleur Hanger Mount for Mountain Bike Road Bike Snowmobile Trail Bike

Relwears$17.8623 rev

1y ago

Relwears Altus RD-M310 Rear Derailleur 7/8 Speed Bike Rear Derailleur Direct Mount for Mountain Bike Road Bike Most Models

Relwears$28.48123 rev

2y ago

Bike Rear Derailleur RD-TY500 6/7 Speed Derailleur Direct Mount for Folding Bike Mountain Bike

Relwears$19.4934 rev

2y ago

Bike Rear Derailleur RD-TY21B 6/7 Speed Derailleur Hanger Mount for Mountain Bike Commuter Bike Cruiser

Relwears$14.7070 rev

2y ago

What buyers say about derailleur

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

What buyers love

Quality-Overall22%

“Good quality easy to install”

Advertised Vs Actual Product22%

“better than expected”

Assembly/Installation13%

“install not too bad after some YouTube videos”

Size-Overall13%

“Fits correctly”

Value For Money8%

“Worth the price, and smooth”

Adjustability/Rotatability/Reclining5%

“Adjusting is essy”

Durability3%

“Looks durable”

Design-Overall3%

“Quality and design”

Friction2%

“Perfect product for a seven speed fat tire E bike the extra large sprockets really enhance the peddling power if you need a good derailer”

Soft Feel1%

“Perfect much smoother”

What buyers complain about

Assembly/Installation14%

“Install was a pain”

Quality-Overall9%

“Horrible quality”

Adjustability/Rotatability/Reclining9%

“Tried to adjust and it broke”

Durability8%

“Plastic parts broke after two weeks”

Product Condition7%

“Clearly someone sent back their old derailleur and I got it because this thing was beat up used and abused”

Size-Overall6%

“wouldn't fit”

Material Quality5%

“its just cheaply made”

Mounting5%

“I didnt realize that this one did not mount on the derailleur hanger”

Functionality-Overall5%

“problems with the bike skipping gears now”

Ease Of Use5%

“the pulley was hard to turn”

Top return reasons

Size-Overall38%

Mounting16%

Defective Material/Parts11%

Advertised Vs Actual Product10%

Functionality-Overall6%

Product Condition2%

Quality-Overall2%

Add-Ons/Attachments2%

Mechanism Issues2%

Value For Money2%

Common questions

Is derailleur profitable to sell on Amazon United States?: The niche generates $133K/yr across 22 tracked products. 90-day search growth is +50.1%. Flapen's verdict: Skip it (45/100).
How competitive is the derailleur niche?: 5 brands and 54 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in derailleur?: Top complaints mined from reviews: Assembly/Installation, Quality-Overall, Adjustability/Rotatability/Reclining. The return rate is 3.4%.
When does demand for derailleur peak?: Demand peaks in Aug–Sep–Oct; the busiest month runs 3.1× the quietest.
What does it cost to enter the derailleur niche?: Listings span $10.62–$50.03; the average listing price is $21.97 (sweet spot $15–$100). The average incumbent carries 556 reviews — the moat a new listing must climb.

derailleur

derailleur market data

Competition & brand share

Demand & seasonality

Top derailleur search terms

Top derailleur products on Amazon

Top sellers

Newest

Trending

What buyers say about derailleur

What buyers love

What buyers complain about

Top return reasons

Common questions

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