---
title: "18 Inch Bike Tube — $54K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/sports-outdoors/18-inch-bike-tube"
last_updated: "2026-08-08T23:58:31.010Z"
locale: en
meta:
description: "Niche score 41/100 · $54K/yr market · 28K searches/yr · $9.68 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · $54K/yr market · 28K searches/yr · $9.68 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "18 Inch Bike Tube — $54K/yr Amazon US Niche (2026) - Flapen"
---
# **18 inch bike tube**
**Skip it**
Prices mostly outside the sweet spot ($6.27–$12.37) — this niche doesn't clear our bar today.
Market size 14Growth 67Conversion 100Competition 10Returns 94Price range 0Avg price 31Brand share 9Review moat 23Quality gap 48
**Conversion**
**Incredible****20.4%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Growth**
**Good****+47.2%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Okay****$9.68**
avg listing price — sweet spot $15–$100
**Review moat**
**Bad****8,094.38**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$54K**
$54K/yr · 28K searches
**Competition**
**Bad****88%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****96%**
top-5 brand share — brand-locked demand
**Price range**
**Bad****$6.27–$12.37**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, 18 inch bike tube is a $54K/yr Amazon United States market (28K searches/yr). The top 5 brands hold 96% of demand. Demand peaks in May–Jun–Jul–Aug–Sep. Verdict: Skip it — 41/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **18 inch bike tube market data**
- **Units sold / yr**
- **5K–6K**
- avg 500–750/product
- **Revenue / yr**
- **$48K–$58K**
- units × avg price
- **Conversion rate**
- **20.4%**
- **Avg BSR**
- **#111**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **75%**
- **Out of stock**
- **4.8%**
- **Avg brand age**
- **54 months**
- **Avg seller age**
- **174 days**
## **Competition & brand share**
The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▼falling
**Sellers**
**27**
**Top-5 brand share**
**96%**
Top 20: 100%
**Top-5 click share**
**88%**
Top 20: 100%
**Open market**
**0%**
- BELL45% - YunSCM23% - Hydencamm14% - Ultraverse10% - FengCan4% - Blackburn4% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +47.2% search growth over the last 90 days.
800600Spike '24Spike '25Prime Day '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun, Jul, Aug, Sep · busiest ÷ quietest = 2.6×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/18-inch-bike-tube/trend)
## **Top 18 inch bike tube search terms**
- **18x1.95 bike tube**7K/yr+56.2%21.1% conv. - **18 inch bike tube**7K/yr+35.0%12.5% conv. - **18 bike tube**6K/yr+61.1%16.5% conv. - **18x2.125 bike tire tube**4K/yr+30.9%18.9% conv. - **18 x 1.95 bike tube**4K/yr+56.3%17.5% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/18-inch-bike-tube/search-terms)
## **Top 18 inch bike tube 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%15%$8K30%$16K45%$24K60%$33K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Bell Standard Bicycle Inner Tube 18 x 1.75-2.25 Schrader Valve**BELL**$7.31**4.6★57,551 rev](https://www.amazon.com/dp/B008HONE1I) [2**2 PCS 18 Bike Tubes 18x1.75/2.125 AV32mm Schrader Valve 47/57-355 Bicycle Tube Compatible with 18 X 1.75 18 X 1.90 18 X 1.95 18 X 2.0 18 X 2.10 18X2.125 Bike Tire Tube**YunSCM**$10.04**4.6★509 rev](https://www.amazon.com/dp/B08HLJ8QWD) [3**Ultraverse 18 Bike Inner Tubes 18 x 1.75 1.95 2.00 2.10 2.125 Heavy Duty Butyl Rubber withSchrader Valve Replacement Bicycle Tube Compatible with Kids BMX Cruiser Mountain Bikes Set of 2**Ultraverse**$11.33**4.4★320 rev](https://www.amazon.com/dp/B08HZFRNKD) [4**Hydencamm 2 Pack 18 Inch Bike Tube Fit 1.75/1.95/2.125 with 32mm Schrader Valve 18x1.95 Bicycle Tube with 2PCS Levers 18x2.125 Bike Tube Compatible with Kids/Road Bikes (2 of One Size)**Hydencamm**$9.99**4.4★4,282 rev](https://www.amazon.com/dp/B0D3WDLD2L) [5**Hydencamm 2 Pack 18x1.75/2.125 Bike Tube 18x1.75 18x1.95 18x2.10 18x2.125 with 35mm Schrader Valve Butyl 18x1.95 Bike Tube with 2PCS Levers Compatible with MTB and Cruisers City Road Bikes**Hydencamm**$10.00**4.5★70 rev](https://www.amazon.com/dp/B0GJ5WDRSZ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Hydencamm 2 Pack 18x1.75/2.125 Bike Tube 18x1.75 18x1.95 18x2.10 18x2.125 with 35mm Schrader Valve Butyl 18x1.95 Bike Tube with 2PCS Levers Compatible with MTB and Cruisers City Road Bikes**Hydencamm**$10.00**70 rev1mo ago](https://www.amazon.com/dp/B0GJ5WDRSZ) [**Hydencamm 2 Pack 18 Inch Bike Tube Fit 1.75/1.95/2.125 with 32mm Schrader Valve 18x1.95 Bicycle Tube with 2PCS Levers 18x2.125 Bike Tube Compatible with Kids/Road Bikes (2 of One Size)**Hydencamm**$9.99**4,282 rev1y ago](https://www.amazon.com/dp/B0D3WDLD2L) [**18x1.75/1.95/2.0/2.10/2.125 Bike Tubes 18 Replacement Bicycle Tubes (2 PCS) Reliable 18 x 1.75-2.125 Bike Inner Tubes AV32mm Schrader Valve for City/Road/Kids/Mountain Cycling Scenarios**FengCan**$10.09**87 rev1y ago](https://www.amazon.com/dp/B0DKWGXH55) [**Blackburn 18 x 1.75-2.25 Schrader Heavy Duty Bicycle Inner Tube with tire levers**Blackburn**$6.27**1,013 rev1y ago](https://www.amazon.com/dp/B0DBX94D22) [**Ultraverse 18 Bike Inner Tubes 18 x 1.75 1.95 2.00 2.10 2.125 Heavy Duty Butyl Rubber withSchrader Valve Replacement Bicycle Tube Compatible with Kids BMX Cruiser Mountain Bikes Set of 2**Ultraverse**$11.33**320 rev5y ago](https://www.amazon.com/dp/B08HZFRNKD)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Hydencamm 2 Pack 18x1.75/2.125 Bike Tube 18x1.75 18x1.95 18x2.10 18x2.125 with 35mm Schrader Valve Butyl 18x1.95 Bike Tube with 2PCS Levers Compatible with MTB and Cruisers City Road Bikes**Hydencamm**$10.00**4.5★**▲ 134%**](https://www.amazon.com/dp/B0GJ5WDRSZ) [**Bell Standard Bicycle Inner Tube 18 x 1.75-2.25 Schrader Valve**BELL**$7.31**4.6★**▲ 22%**](https://www.amazon.com/dp/B008HONE1I) [**Ultraverse 18 Bike Inner Tubes 18 x 1.75 1.95 2.00 2.10 2.125 Heavy Duty Butyl Rubber withSchrader Valve Replacement Bicycle Tube Compatible with Kids BMX Cruiser Mountain Bikes Set of 2**Ultraverse**$11.33**4.4★**— 1%**](https://www.amazon.com/dp/B08HZFRNKD) [**Blackburn 18 x 1.75-2.25 Schrader Heavy Duty Bicycle Inner Tube with tire levers**Blackburn**$6.27**4.2★**▼ 15%**](https://www.amazon.com/dp/B0DBX94D22) [**2 PCS 18 Bike Tubes 18x1.75/2.125 AV32mm Schrader Valve 47/57-355 Bicycle Tube Compatible with 18 X 1.75 18 X 1.90 18 X 1.95 18 X 2.0 18 X 2.10 18X2.125 Bike Tire Tube**YunSCM**$10.04**4.6★**▼ 19%**](https://www.amazon.com/dp/B08HLJ8QWD)
**~~View all trending →~~**
## **What buyers say about 18 inch bike tube**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**31%
*“Quality product”*
**Size-Overall**18%
*“Fit great”*
**Advertised Vs Actual Product**11%
*“Works as expected”*
**Ease Of Use**9%
*“Easy to Use, Works Perfectly”*
**Leak-Proof**8%
*“No leaks”*
**Value For Money**7%
*“Good price”*
**Assembly/Installation**6%
*“Easy to install”*
**Durability**4%
*“Durable”*
### **What buyers complain about **
**Leak-Proof**26%
*“Leakage”*
**Quality-Overall**15%
*“Garbage”*
**Defective Material/Parts**15%
*“Manufacturing defects”*
**Assembly/Installation**11%
*“Definitely frustrating to install a new one just to find out it had a hole”*
**Advertised Vs Actual Product**11%
*“actual product doesnt have them as pictured so for price not as good a deal as it shows if you then go buy levers to take a tire off to replace tube”*
**Inflation/Deflation**9%
*“all I heard was a balloon getting rapidly deflated”*
**Functionality-Overall**6%
*“Didn't work”*
**Durability**4%
*“the second one lasted 2 weeks”*
### **Top return reasons **
**Size-Overall**66%
**Leak-Proof**7%
**Value For Money**5%
**Advertised Vs Actual Product**5%
**Inflation/Deflation**4%
**Functionality-Overall**4%
**Defective Material/Parts**3%
**Quality-Overall**2%
**Assembly/Installation**1%
**Maintenance And Repair**1%
## **Common questions**
- **Is 18 inch bike tube profitable to sell on Amazon United States?**
- The niche generates $54K/yr across 8 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +47.2%. Flapen's verdict: Skip it (41/100).
- **How competitive is the 18 inch bike tube niche?**
- 6 brands and 27 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 96% of demand.
- **What do buyers complain about in 18 inch bike tube?**
- Top complaints mined from reviews: Leak-Proof, Quality-Overall, Defective Material/Parts. The return rate is 1.1%.
- **When does demand for 18 inch bike tube peak?**
- Demand peaks in May–Jun–Jul–Aug–Sep; the busiest month runs 2.6× the quietest.
- **What does it cost to enter the 18 inch bike tube niche?**
- Listings span $6.27–$12.37; the average listing price is $9.68 (sweet spot $15–$100). The average incumbent carries 8,094 reviews — the moat a new listing must climb.
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