---
title: "Derailleur — $133K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/sports-outdoors/derailleur"
last_updated: "2026-08-06T23:03:32.160Z"
locale: en
meta:
description: "Niche score 45/100 · $133K/yr market · 196K searches/yr · $21.97 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 45/100 · $133K/yr market · 196K searches/yr · $21.97 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Derailleur — $133K/yr Amazon US Niche (2026) - Flapen"
---
# **derailleur**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 30Growth 69Conversion 39Competition 42Returns 45Price range 86Avg price 92Brand share 0Review moat 74Quality gap 33
**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**
**Good****556.32**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+50.1%**
90-day search growth — must beat 0% to launch
**Returns**
**Okay****3.4%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****60%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Okay****3.1%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$133K**
$133K/yr · 196K searches
**Brand share**
**Bad****100%**
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 ~~](https://flapen.com/research/methodology)
## **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**
**54**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**60%**
Top 20: 97%
**Open market**
**0%**
- 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.
10K6KHoliday '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep, Oct · busiest ÷ quietest = 3.1×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/derailleur/trend)
## **Top derailleur search terms**
- **shimano derailleur**26K/yr+62.4%1.7% conv. - **derailleur**25K/yr+33.0%1.2% conv. - **7 speed derailleur**17K/yr+72.4%2.6% conv. - **bike derailleur**15K/yr+70.2%1.6% conv. - **rear derailleur**17K/yr+27.4%1.6% conv. - **shimano derailleur 7 speed**8K/yr+88.4%3.5% conv. - **shimano 7 speed derailleur**11K/yr+67.2%3.6% conv. - **shimano rear derailleur**9K/yr+44.0%2.0% conv. - **desviador trasero para bicicleta**10K/yr+9.8%0.8% conv. - **rear bike derailleurs**9K/yr-1.0%0.9% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/derailleur/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.
0%10%$13K20%$27K30%$40K40%$53K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Relwears Tourney Rear Derailleur RD-TY300 6/7Speed Rear Derailleur Direct Mount for Mountain Bike Road Bike Snowmobile Trail Bike**Relwears**$19.46**4.4★250 rev](https://www.amazon.com/dp/B0CTJSYX4P) [2**Shimano Rear Derailleur RD-TX800 7/8 SPD Direct Attach Bla**SHIMANO**$21.72**4.5★1,082 rev](https://www.amazon.com/dp/B00O7XMG1C) [3**Relwears Altus RD-M310 Rear Derailleur 7/8 Speed Bike Rear Derailleur Direct Mount for Mountain Bike Road Bike Most Models**Relwears**$28.48**4.6★123 rev](https://www.amazon.com/dp/B0D21PM8DD) [4**Bike Rear Derailleur TY300 Direct Mount 6/7 Speed for Mountain Bicycle**RainFlowwer**$18.28**4.8★81 rev](https://www.amazon.com/dp/B0C9Q5YGQV) [5**Bike Rear Derailleur RD-TZ31A 6/7 Speed Derailleur Hanger Mount for Mountain Commuter Commuter Folding Bike**Relwears**$17.08**4.6★180 rev](https://www.amazon.com/dp/B0CW1PSX6V)
**~~View all top sellers →~~**
### **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**$18.46**37 rev1y ago](https://www.amazon.com/dp/B0DYJVRDQX) [**Relwears Tourney Rear Derailleur RD-TY300 6/7Speed Rear Derailleur Hanger Mount for Mountain Bike Road Bike Snowmobile Trail Bike**Relwears**$17.86**23 rev1y ago](https://www.amazon.com/dp/B0DYDBBWGR) [**Relwears Altus RD-M310 Rear Derailleur 7/8 Speed Bike Rear Derailleur Direct Mount for Mountain Bike Road Bike Most Models**Relwears**$28.48**123 rev2y ago](https://www.amazon.com/dp/B0D21PM8DD) [**Bike Rear Derailleur RD-TY500 6/7 Speed Derailleur Direct Mount for Folding Bike Mountain Bike**Relwears**$19.49**34 rev2y ago](https://www.amazon.com/dp/B0D1Q2FH8T) [**Bike Rear Derailleur RD-TY21B 6/7 Speed Derailleur Hanger Mount for Mountain Bike Commuter Bike Cruiser**Relwears**$14.70**70 rev2y ago](https://www.amazon.com/dp/B0CZKKRDXB)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Relwears Tourney 8-Speed Derailleur Mountain Bicycle Rear Derailleur-RD-TX800**Relwears**$21.98**4.5★**▲ 105%**](https://www.amazon.com/dp/B0CWQ7TCWZ) [**Relwears Tourney Rear Derailleur RD-TY300 6/7Speed Rear Derailleur Hanger Mount for Mountain Bike Road Bike Snowmobile Trail Bike**Relwears**$17.86**4.7★**▲ 86%**](https://www.amazon.com/dp/B0DYDBBWGR) [**Bike Rear Derailleur RD-TY21B 6/7 Speed Derailleur Hanger Mount for Mountain Bike Commuter Bike Cruiser**Relwears**$14.70**4.7★**▲ 79%**](https://www.amazon.com/dp/B0CZKKRDXB) [**Bike Rear Derailleur TY300 Direct Mount 6/7 Speed for Mountain Bicycle**RainFlowwer**$18.28**4.8★**▲ 68%**](https://www.amazon.com/dp/B0C9Q5YGQV) [**Shimano Rear Derailleur RD-TX800 7/8 SPD Direct Attach Bla**SHIMANO**$21.72**4.5★**▲ 66%**](https://www.amazon.com/dp/B00O7XMG1C)
**~~View all trending →~~**
## **What buyers say about derailleur**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**22%
*“Good quality easy to install”*
**Advertised Vs Actual Product**22%
*“better than expected”*
**Assembly/Installation**13%
*“install not too bad after some YouTube videos”*
**Size-Overall**13%
*“Fits correctly”*
**Value For Money**8%
*“Worth the price, and smooth”*
**Adjustability/Rotatability/Reclining**5%
*“Adjusting is essy”*
**Durability**3%
*“Looks durable”*
**Design-Overall**3%
*“Quality and design”*
**Friction**2%
*“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 Feel**1%
*“Perfect much smoother”*
### **What buyers complain about **
**Assembly/Installation**14%
*“Install was a pain”*
**Quality-Overall**9%
*“Horrible quality”*
**Adjustability/Rotatability/Reclining**9%
*“Tried to adjust and it broke”*
**Durability**8%
*“Plastic parts broke after two weeks”*
**Product Condition**7%
*“Clearly someone sent back their old derailleur and I got it because this thing was beat up used and abused”*
**Size-Overall**6%
*“wouldn't fit”*
**Material Quality**5%
*“its just cheaply made”*
**Mounting**5%
*“I didnt realize that this one did not mount on the derailleur hanger”*
**Functionality-Overall**5%
*“problems with the bike skipping gears now”*
**Ease Of Use**5%
*“the pulley was hard to turn”*
### **Top return reasons **
**Size-Overall**38%
**Mounting**16%
**Defective Material/Parts**11%
**Advertised Vs Actual Product**10%
**Functionality-Overall**6%
**Product Condition**2%
**Quality-Overall**2%
**Add-Ons/Attachments**2%
**Mechanism Issues**2%
**Value For Money**2%
## **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.
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