---
title: "Bike Stem — $139K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/sports-outdoors/bike-stem"
last_updated: "2026-08-10T06:35:42.564Z"
locale: en
meta:
description: "Niche score 48/100 · $139K/yr market · 411K searches/yr · $23.00 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $139K/yr market · 411K searches/yr · $23.00 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Bike Stem — $139K/yr Amazon US Niche (2026) - Flapen"
---
# **bike stem**
**Skip it**
Weak search conversion (1.5%) — this niche doesn't clear our bar today.
Market size 31Growth 58Conversion 18Competition 62Returns 24Price range 87Avg price 95Brand share 57Review moat 60Quality gap 28
**Avg price**
**Incredible****$23.00**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$7.76–$78.75**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****48%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Good****1,110.75**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+33.2%**
90-day search growth — must beat 0% to launch
**Brand share**
**Good****71%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$139K**
$139K/yr · 411K searches
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Returns**
**Bad****5.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****1.5%**
search→purchase rate — share of searches ending in a sale
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, bike stem is a $139K/yr Amazon United States market (411K searches/yr). The top 5 brands hold 71% of demand. Verdict: Skip it — 48/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **bike stem market data**
- **Units sold / yr**
- **5K–6K**
- avg 100–250/product
- **Revenue / yr**
- **$115K–$138K**
- units × avg price
- **Conversion rate**
- **1.5%**
- **Avg BSR**
- **#67**
- **Page quality**
- **0%**
- **Prime**
- **97%**
- **Sponsored**
- **94%**
- **Out of stock**
- **7.0%**
- **Avg brand age**
- **59 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**19 **▲rising
**Sellers**
**36**
**Top-5 brand share**
**71%**
Top 20: 100%
**Top-5 click share**
**48%**
Top 20: 84%
**Open market**
**24%**
- WAKE26% - CYSKY16% - FOMTOR12% - MEGHNA9% - FIFTY-FIFTY8% - Azarxis5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +33.2% search growth over the last 90 days.
10K6KSpike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/bike-stem/trend)
## **Top bike stem search terms**
- **bike stem**109K/yr+44.1%0.9% conv. - **mtb stem**80K/yr+16.0%0.8% conv. - **31.8 stem**34K/yr+46.0%1.1% conv. - **mountain bike stem**32K/yr+26.2%1.0% conv. - **bike stems**28K/yr+3.0%0.4% conv. - **bicycle stem**22K/yr+26.1%0.7% conv. - **road bike stem**22K/yr+21.5%0.6% conv. - **handlebar stem**13K/yr+45.1%0.8% conv. - **mtb stem 31.8**13K/yr+34.0%1.0% conv. - **ebike stem**10K/yr+61.5%1.6% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/bike-stem/search-terms)
## **Top bike stem 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%$14K20%$28K30%$42K40%$56K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Bike Stem 31.8 45mm WAKE Mountain Bike Stem Bicycle Handlebar Stem Suitable for BMX MTB Road Bike (Aluminum Alloy Adjustable Black)**WAKE**$10.09**4.6★6,331 rev](https://www.amazon.com/dp/B071YV77R7) [2**MEGHNA MTB Short Bike Stem 22.2mm Mountain Bike Handlebar Stem 35mm for Most Bike Road Bike MTB BMX**MEGHNA**$13.28**4.7★306 rev](https://www.amazon.com/dp/B09BFF8SF5) [3**CYSKY 31.8 Stem 35mm 0 Degree MTB Short Stem Mountain Bike Stem Handlebar Riser 1-1/8 for Most Bicycle Road Bike MTB Downhill BMX Cycling (Black & Titanium)**CYSKY**$15.42**4.5★357 rev](https://www.amazon.com/dp/B0DNTC5WL2) [4**Ritchey Comp 4-Axis Stem - 60mm 31.8 30 Degree Matte Black**Ritchey**$56.71**4.6★178 rev](https://www.amazon.com/dp/B07VZP3TN4) [5**31.8 Stem 60mm 7 Degree FOMTOR Light-Weight Bike Handlebar Stem MTB Stem Suitable for Mountain Bike Road Bike BMX MTB (31.8 x 60mm)**FOMTOR**$18.72**4.7★1,247 rev](https://www.amazon.com/dp/B07D36QKHM)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**FIFTY-FIFTY Mountain Bike Stem Aluminum Alloy Short MTB Stem Suitable for 1-1/8 Steer Tube 31.8mm Bicycle Handlebar Fits for All Mountain Endure Downhill Freeride (35mm Black)**FIFTY-FIFTY**$30.84**84 rev11mo ago](https://www.amazon.com/dp/B0FKMLPDP2) [**FIFTY-FIFTY Mountain Bike Stem Aluminum Alloy Short MTB Stem Suitable for 1-1/8 Steer Tube 31.8mm Bicycle Handlebar Fits for All Mountain Endure Downhill Freeride (35mm Red)**FIFTY-FIFTY**$31.31**84 rev11mo ago](https://www.amazon.com/dp/B0FKML13L7) [**HARFINGTON 31.8mm Bike Stem 35mm Aluminum Alloy Bicycle Handlebar Stem for Mountain Road Bike BMX MTB Cycling Silver**HARFINGTON**$21.40**13 rev1y ago](https://www.amazon.com/dp/B0FH6L4ZDZ) [**Azarxis Bike Stem 31.8mm 45mm Mountain Bike Stem Short Handlebar Aluminum Alloy CNC for Most Road Bicycle MTB BMX Fixie Gear Cycling (Silver - 31.8mm)**Azarxis**$7.76**1,518 rev1y ago](https://www.amazon.com/dp/B0F4K2573B) [**TRIWONDER Bike Stem 45mm Short Handlebar Stem 25mm.4 31.8mm Mountain Bike Stem for Most Bicycle Road Bike MTB BMX Fixie Gear Cycling (Black 31.8 x 45mm)**TRIWONDER**$8.24**204 rev1y ago](https://www.amazon.com/dp/B0F4D1YLY8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Ritchey Comp 4-Axis Stem - 60mm 31.8 30 Degree Matte Black**Ritchey**$56.71**4.6★**▲ 157%**](https://www.amazon.com/dp/B07VZP3TN4) [**FIFTY-FIFTY Mountain Bike Stem Aluminum Alloy Short MTB Stem Suitable for 1-1/8 Steer Tube 31.8mm Bicycle Handlebar Fits for All Mountain Endure Downhill Freeride (35mm Red)**FIFTY-FIFTY**$31.31**4.9★**▲ 108%**](https://www.amazon.com/dp/B0FKML13L7) [**TRIWONDER Bike Stem 45mm Short Handlebar Stem 25mm.4 31.8mm Mountain Bike Stem for Most Bicycle Road Bike MTB BMX Fixie Gear Cycling (Black 31.8 x 45mm)**TRIWONDER**$8.24**4.6★**▲ 93%**](https://www.amazon.com/dp/B0F4D1YLY8) [**HARFINGTON 31.8mm Bike Stem 35mm Aluminum Alloy Bicycle Handlebar Stem for Mountain Road Bike BMX MTB Cycling Silver**HARFINGTON**$21.40**4.2★**▲ 84%**](https://www.amazon.com/dp/B0FH6L4ZDZ) [**Funn RSX Mountain Bike Direct Mount Bike Stem with 31.8mm Bar Clamp 2 Pieces Lightweight Split Design for Dual Crown Forks Adjustable Extension 45-50mm with 30mm Rise (Black)**Funn**$71.92**4.6★**▲ 76%**](https://www.amazon.com/dp/B076PK7KRP)
**~~View all trending →~~**
## **What buyers say about bike stem**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Good Quality”*
**Size-Overall**14%
*“Fits my bars perfectly”*
**Advertised Vs Actual Product**10%
*“As advertised”*
**Strength**8%
*“Really good and strong”*
**Weight Light**7%
*“is lighter then the stem I had”*
**Comfort-Overall**6%
*“which improved comfort”*
**Assembly/Installation**5%
*“installation was simple”*
**Value For Money**4%
*“cheap price”*
**Durability**4%
*“First reason is that it didn't break”*
**Mounting**3%
*“Great direct mount clamps”*
### **What buyers complain about **
**Quality-Overall**17%
*“cap going into bicycle fork head wasn't trying to use old one since it wasn't great quality”*
**Size-Overall**16%
*“I screwed up when I ordered it doesn't fit my bars”*
**Weight Heavy**10%
*“I would still have a hard time putting anything this heavy on my road bike”*
**Flexibility**8%
*“Deforms a bit when tightened enough to hold”*
**Grip**6%
*“It slips”*
**Color**6%
*“was just all black”*
**Adjustability/Rotatability/Reclining**3%
*“I just wish that it would adjust a little further back toward the rider”*
**Value For Money**3%
*“too cheap to buy new bikes”*
**Strength**3%
*“flimsy bolts”*
**Thickness**2%
*“Pretty thin,”*
### **Top return reasons **
**Size-Overall**83%
**Advertised Vs Actual Product**5%
**Defective Material/Parts**2%
**Functionality-Overall**1%
**Compatibility-Overall**1%
**Value For Money**1%
**Assembly/Installation**1%
**Weight Heavy**1%
**Product Condition**1%
**Scratch Resistance**1%
## **Common questions**
- **Is bike stem profitable to sell on Amazon United States?**
- The niche generates $139K/yr across 32 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is +33.2%. Flapen's verdict: Skip it (48/100).
- **How competitive is the bike stem niche?**
- 19 brands and 36 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 71% of demand.
- **What do buyers complain about in bike stem?**
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Weight Heavy. The return rate is 5.1% — above our launch gate.
- **When does demand for bike stem peak?**
- Demand is steady year-round — the busiest month runs 1.7× the quietest.
- **What does it cost to enter the bike stem niche?**
- Listings span $7.76–$78.75; the average listing price is $23.00 (sweet spot $15–$100). The average incumbent carries 1,111 reviews — the moat a new listing must climb.
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