---
title: "3.50-8 Tire — $20K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/3-50-8-tire"
last_updated: "2026-08-09T03:50:09.784Z"
locale: en
meta:
description: "Niche score 59/100 · $20K/yr market · 17K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 59/100 · $20K/yr market · 17K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "3.50-8 Tire — $20K/yr Amazon US Niche (2026) - Flapen"
---
# **3.50-8 tire**
**Worth a look**
Shows a sweet-spot price point ($37.06 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 5Growth 83Conversion 41Competition 63Returns 76Price range 85Avg price 95Brand share 72Review moat 68Quality gap 47
**Avg price**
**Incredible****$37.06**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$7.98–$63.39**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Great****+79.7%**
90-day search growth — must beat 0% to launch
**Returns**
**Great****1.9%**
return rate — above 5% kills the launch gate
**Brand share**
**Good****62%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Good****795.86**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****47%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Okay****3.3%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$20K**
$20K/yr · 17K searches
According to Flapen's Amazon United States niche tracking, 3.50-8 tire is a $20K/yr Amazon United States market (17K searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Apr–May–Jun. Verdict: Worth a look — 59/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **3.50-8 tire market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$37K–$46K**
- units × avg price
- **Conversion rate**
- **3.3%**
- **Avg BSR**
- **#241**
- **Page quality**
- **0%**
- **Prime**
- **93%**
- **Sponsored**
- **89%**
- **Out of stock**
- **2.1%**
- **Avg brand age**
- **48 months**
- **Avg seller age**
- **226 days**
## **Competition & brand share**
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**21 **▼falling
**Sellers**
**26**
**Top-5 brand share**
**62%**
Top 20: 99%
**Top-5 click share**
**47%**
Top 20: 93%
**Open market**
**33%**
- GICOOL25% - LTNICER12% - QsEzDo11% - Potreba9% - Parts Camp5% - RUTU5%
## **Demand & seasonality**
Weekly Amazon search volume, last 57 weeks — +79.7% search growth over the last 90 days.
700500Spike '25Spike '26 seasonJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Apr, May, Jun · busiest ÷ quietest = 4.6×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/3-50-8-tire/trend)
## **Top 3.50-8 tire search terms**
- **3.50-8 wheelbarrow tire**9K/yr+128.2%6.2% conv. - **3.50-8 tire**5K/yr+29.9%3.4% conv. - **3.5-8 wheelbarrow tire**3K/yr+45.9%8.9% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/3-50-8-tire/search-terms)
## **Top 3.50-8 tire 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%4%$8088%$2K12%$2K16%$3K1101001K10K 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**GICOOL 3.50-8 Wheelbarrow Tire 14.5 Flat-free Solid Tire and Wheel with 5/8 Axle Bore Hole 3-6 Centered Hub for Wheelbarrow Trolley Dolly Go Kart Universal Fit 4.80-8 4.00-8 4.00-6**GICOOL**$33.68**4.6★248 rev](https://www.amazon.com/dp/B0C7VVB4S2) [2**LTNICER 14.5 Wheelbarrow Tire 3.50-8 Flat-free Solid Tire and Wheel with 3 -7 Centered Hub and 5/8 & 3/4Bearings for Wheelbarrow Trolley Dolly Lawn Mover Go Kart Replacement (2-Pack)**LTNICER**$46.99**4.5★28 rev](https://www.amazon.com/dp/B0DXZWH28W) [3**Inner Tube 3.50-8 for Wheelbarrow Hand Truck Dolly 14 Rim 8**Potreba**$8.06**4.6★3,886 rev](https://www.amazon.com/dp/B01HV09DKE) [4**GICOOL 14.5 Wheelbarrow Tire 3.50-8 Pneumatic Tire Universal Wheelbarrow Wheel for 4.80/4.00-8 4.00-6 and 2.50-8 with 6 Centered Hub 5/8 Axle Bore Hole Sealed Bearings**GICOOL**$35.82**4.3★203 rev](https://www.amazon.com/dp/B0BGPXBHYM) [5**QsEzDo 3.50-8 Tire and Inner Tube (1 Set) by Air Filled 4PR and Max 35 PIS with TR13 Strainght Valve Stem Fits 8-Inch Wheel/Rim Work for Wheelbarrow Hand Truck Tool Cart Garden Carts**QsEzDo**$24.76**4.4★103 rev](https://www.amazon.com/dp/B0DDLDDW52)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**2-Set 14x3.50-8 Tire and Inner Tube Set - 4PR 14.25 Inflated Diameter and 3.34 Width TR13 Straight Valve Stem for Wheelbarrow Hand Truck Garden Cart Utility Cart Lawn Mower Generator Load 300LBS**SINADYLON**$28.24**9 rev3mo ago](https://www.amazon.com/dp/B0GL8VTQYG) [**1PZ 14.5 Wheelbarrow Tire 3.50-8 Flat-free Solid Tire and Wheel with 3 - 7 Centered Hub and 5/8 & 3/4 Bearings for Wheelbarrow Trolley Dolly Lawn Mover Go Kart Replacement**1PZ**$46.49**6 rev6mo ago](https://www.amazon.com/dp/B0GGB4RRLK) [**14.5 Wheelbarrow Tire Flat-Free 3.50-8 Solid Tire 300LB Capacity Each with 5/8 & 3/4 Bearings 3-4-6-7 Adjustable Hub Tire and Wheel Replacement for Dolly Hand Truck Garden Cart 2 Pack**luxlead**$46.54**8 rev6mo ago](https://www.amazon.com/dp/B0GD16CL6V) [**4.80/4.00-8 Flat Free Wheelbarrow Tires and Wheels 14.5 Universal Fit Solid Tires with 5/8 or 3/4 Bearing 3-7 Hub Adapter Kit Hand Truck Wheels Replacement for 3.50/2.50-8 4.00-6etc 1 PCS**phepetroll**$28.92**199 rev1y ago](https://www.amazon.com/dp/B0F18YM17S) [**LTNICER 14.5 Wheelbarrow Tire 3.50-8 Flat-free Solid Tire and Wheel with 3 -7 Centered Hub and 5/8 & 3/4Bearings for Wheelbarrow Trolley Dolly Lawn Mover Go Kart Replacement (2-Pack)**LTNICER**$46.99**28 rev1y ago](https://www.amazon.com/dp/B0DXZWH28W)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**2-Set 14x3.50-8 Tire and Inner Tube Set - 4PR 14.25 Inflated Diameter and 3.34 Width TR13 Straight Valve Stem for Wheelbarrow Hand Truck Garden Cart Utility Cart Lawn Mower Generator Load 300LBS**SINADYLON**$28.24**4.4★**▲ 144%**](https://www.amazon.com/dp/B0GL8VTQYG) [**1PZ 14.5 Wheelbarrow Tire 3.50-8 Flat-free Solid Tire and Wheel with 3 - 7 Centered Hub and 5/8 & 3/4 Bearings for Wheelbarrow Trolley Dolly Lawn Mover Go Kart Replacement**1PZ**$46.49**4.7★**▲ 142%**](https://www.amazon.com/dp/B0GGB4RRLK) [**Taifa 14 Inch 1 PC Solid Flat Free Replacement Tires and Wheels 3.50-8 with 5/8 Bearing Air Less Wheel for Wheelbarrow/Wagon/Hand Truck/Trolley/Garden Scooter etc.**Taifa**$36.44**4.5★**▲ 76%**](https://www.amazon.com/dp/B0D3V4CFL1) [**GICOOL 14.5 Wheelbarrow Flat Free Tire Fits 4.80/4.00-8 3.50/2.50-8 4.00-6 4.00-8 Wheelbarrow Wheels 5/8 Bearing with Extra 3/4 Bearing 3 -6 Centered Hub**GICOOL**$33.99**4.7★**▲ 57%**](https://www.amazon.com/dp/B0BG7RNRZV) [**LTNICER 14.5 Wheelbarrow Tire 3.50-8 Flat-free Solid Tire and Wheel with 3 -7 Centered Hub and 5/8 & 3/4Bearings for Wheelbarrow Trolley Dolly Lawn Mover Go Kart Replacement (2-Pack)**LTNICER**$46.99**4.5★**▲ 47%**](https://www.amazon.com/dp/B0DXZWH28W)
**~~View all trending →~~**
## **What buyers say about 3.50-8 tire**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**24%
*“Fits As Advertised”*
**Quality-Overall**18%
*“They seem to be well made”*
**Value For Money**13%
*“GREAT VALUE”*
**Assembly/Installation**10%
*“Installed quick”*
**Advertised Vs Actual Product**8%
*“As advertised”*
**Ease Of Use**5%
*“is easy for you”*
**Wheel Quality**4%
*“The wheels are fine”*
**Strength**4%
*“Tire is solid”*
**Durability**4%
*“Great looking and durable”*
**Functionality-Overall**1%
*“the spacers worked perfectly”*
### **What buyers complain about **
**Size-Overall**15%
*“Wrong size”*
**Flatness**12%
*“Never goes flat”*
**Hard Feel**9%
*“its to hard”*
**Durability**8%
*“DEFORMED”*
**Quality-Overall**7%
*“This is an additional quality control concern”*
**Ease Of Use**5%
*“trying to figure out the spacing was a pain”*
**Strength**5%
*“Too fragile for heavy work”*
**Maintenance And Repair**3%
*“could not be patched”*
**Advertised Vs Actual Product**2%
*“I don't appreciate the dishonest description”*
**Material Quality**2%
*“Not a Real Tire, It's Plastic”*
### **Top return reasons **
**Size-Overall**68%
**Advertised Vs Actual Product**11%
**Functionality-Overall**6%
**Material Quality**2%
**Defective Material/Parts**2%
**Value For Money**1%
**Quality-Overall**1%
**Compatibility-Overall**1%
**Leak-Proof**1%
**Maintenance And Repair**1%
## **Common questions**
- **Is 3.50-8 tire profitable to sell on Amazon United States?**
- The niche generates $20K/yr across 28 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is +79.7%. Flapen's verdict: Worth a look (59/100).
- **How competitive is the 3.50-8 tire niche?**
- 21 brands and 26 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 62% of demand.
- **What do buyers complain about in 3.50-8 tire?**
- Top complaints mined from reviews: Size-Overall, Flatness, Hard Feel. The return rate is 1.9%.
- **When does demand for 3.50-8 tire peak?**
- Demand peaks in Apr–May–Jun; the busiest month runs 4.6× the quietest.
- **What does it cost to enter the 3.50-8 tire niche?**
- Listings span $7.98–$63.39; the average listing price is $37.06 (sweet spot $15–$100). The average incumbent carries 796 reviews — the moat a new listing must climb.
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