---
title: "9x3.50-4 Tire — $41K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/9x3-50-4-tire"
last_updated: "2026-08-09T05:34:23.807Z"
locale: en
meta:
description: "Niche score 63/100 · $41K/yr market · 16K 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 63/100 · $41K/yr market · 16K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "9x3.50-4 Tire — $41K/yr Amazon US Niche (2026) - Flapen"
---
# **9x3.50-4 tire**
**Worth a look**
Shows demand growing +111.4% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 10Growth 95Conversion 69Competition 48Returns 52Price range 95Avg price 95Brand share 73Review moat 87Quality gap 65
**Growth**
**Incredible****+111.4%**
90-day search growth — must beat 0% to launch
**Avg price**
**Incredible****$39.94**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$19.96–$65.99**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****260.62**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****61%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****6.3%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Returns**
**Good****2.9%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****56%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Bad****$41K**
$41K/yr · 16K searches
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, 9x3.50-4 tire is a $41K/yr Amazon United States market (16K searches/yr). The top 5 brands hold 61% of demand. Demand peaks in Apr–May–Jun–Jul–Aug. Verdict: Worth a look — 63/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **9x3.50-4 tire market data**
- **Units sold / yr**
- **750–1K**
- avg 0–100/product
- **Revenue / yr**
- **$30K–$40K**
- units × avg price
- **Conversion rate**
- **6.3%**
- **Avg BSR**
- **#489**
- **Page quality**
- **0%**
- **Prime**
- **95%**
- **Sponsored**
- **81%**
- **Out of stock**
- **15.6%**
- **Avg brand age**
- **49 months**
- **Avg seller age**
- **159 days**
## **Competition & brand share**
The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▼falling
**Sellers**
**39**
**Top-5 brand share**
**61%**
Top 20: 100%
**Top-5 click share**
**56%**
Top 20: 99%
**Open market**
**33%**
- GICOOL22% - AR-PRO14% - RETOTLA13% - Parts Camp7% - Slother6% - FVRITO5%
## **Demand & seasonality**
Weekly Amazon search volume, last 96 weeks — +111.4% search growth over the last 90 days.
600400Holiday '24Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 5.8×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/9x3-50-4-tire/trend)
## **Top 9x3.50-4 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%10%$4K20%$8K30%$12K40%$16K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**GICOOL 9x3.50-4 Zero Turn Mower Flat Free Tire and Wheel Assembly (2-Pack) Smooth Tread Front Tires for ZTR Mowers Adjustable Centered Hub Length 3.5-4-4.5-5 3/4 & 5/8 Bearing Bore**GICOOL**$48.47**4.5★31 rev](https://www.amazon.com/dp/B0FX3YWZ72) [2**(2-Pack) 9x3.50-4 Flat Free Lawnmower Tire and Wheel Assemblies - PU Tire on Wheel and Adapter Kits with 3.5 Centered Hub 3/4 Bushings**AR-PRO**$38.01**4.3★1,095 rev](https://www.amazon.com/dp/B09D35HYS8) [3**9x3.50-4 Flat-Free Lawn Mower Tire Heavy-Duty PU Solid Tires with 3.5-5 Centered Hub 3/4 and 5/8 Axle Bore 9 Solid Tire for Zero-Turn Mowers Garden Carts Yellow 2pcs**RETOTLA**$39.85**3.5★22 rev](https://www.amazon.com/dp/B0FM46QXTQ) [4**2Pcs 9x3.50-4 Flat Free Tire Lawn Mower Tire with 3.5 Centered Hub 3/4& 5/8 Bearings 2/5& 1/5 Metal Spacers 3.5-4-4.5-5 Centered Hub Smooth Tread Tire for Zero Turn Mowers**Slother**$50.80**4.3★59 rev](https://www.amazon.com/dp/B0D5CQWP1K) [5**FVRITO 9x3.50-4 9x3-1/2 Tire and Inner Tube for Mini ATV Quad Go Kart Petrol Electric Gas Skateboard Scooter Mini Choppers Garden Lawnmower Tractor with Bent Valve Stem**FVRITO**$20.78**4.5★486 rev](https://www.amazon.com/dp/B08RZ9L9QV)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**9x3.50-4 Flat-Free Lawn Mower Tire Solid Smooth Tire with 3/4 and 5/8 Axle Bore 3.5-5 Centered Hub 9 Solid Tire for Zero-Turn Mowers Garden Carts Wheelbarrows 2pcs**RETOTLA**$49.58**10 rev3mo ago](https://www.amazon.com/dp/B0GTQTFMMW) [**9x3.50-4 Flat Free Lawn Mower Tires Flat Free Tires and Wheel With 5/8 or 3/4 Precision Bearings and 3.5-4.4 Center Hub Solid Smooth Tire for Zero-Turn LawnmowersLoad 265lbs 2 Pack White**NUBAUTO**$47.25**1 rev4mo ago](https://www.amazon.com/dp/B0G5N57Y6D) [**GICOOL 9x3.50-4 Zero Turn Mower Flat Free Tire and Wheel Assembly (2-Pack) Smooth Tread Front Tires for ZTR Mowers Adjustable Centered Hub Length 3.5-4-4.5-5 3/4 & 5/8 Bearing Bore**GICOOL**$48.47**31 rev5mo ago](https://www.amazon.com/dp/B0FX3YWZ72) [**LTNICER 9x3.50-4 Tire and Inner Tube Set Replacement 9x3-1/2 Tire with Bent Valve Stem Heavy Duty Butyl Tube for Go Kart Scooter Mini Bike Lawn Mower 2 Pack**LTNICER**$30.66**7 rev7mo ago](https://www.amazon.com/dp/B0G8DG7T2D) [**9x3.50-4 Flat Free Tire Lawn Mower Tire and Wheel Smooth Tread Tire for Zero Turn Mowers Centered Hub Length 3.5-4-4.5-5 Bearing Bore 3/4 & 5/8 2 PCS**Vershin**$43.21**2 rev7mo ago](https://www.amazon.com/dp/B0G6CR8K1Z)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**9x3.50-4 Flat Free Tire Lawn Mower Tire and Wheel Smooth Tread Tire for Zero Turn Mowers Centered Hub Length 3.5-4-4.5-5 Bearing Bore 3/4 & 5/8 2 PCS**Vershin**$43.21**5.0★**▲ 98%**](https://www.amazon.com/dp/B0G6CR8K1Z) [**9x3.50-4 Flat-Free Lawn Mower Tire Solid Smooth Tire with 3/4 and 5/8 Axle Bore 3.5-5 Centered Hub 9 Solid Tire for Zero-Turn Mowers Garden Carts Wheelbarrows 2pcs**RETOTLA**$49.58**4.3★**▲ 96%**](https://www.amazon.com/dp/B0GTQTFMMW) [**LTNICER 9x3.50-4 Tire and Inner Tube Set Replacement 9x3-1/2 Tire with Bent Valve Stem Heavy Duty Butyl Tube for Go Kart Scooter Mini Bike Lawn Mower 2 Pack**LTNICER**$30.66**4.8★**▲ 84%**](https://www.amazon.com/dp/B0G8DG7T2D) [**Parts Camp 9x3.50-4 Tire and Inner Tube Set 9x3-1/2 Interchangeable 2 Pack with Patch Kit Replacement for Mini ATV Go Kart Gas Scooter Lawn Mower and Tractor 4 Rim Bent Valve Stem**Parts Camp**$35.17**4.0★**▲ 81%**](https://www.amazon.com/dp/B0G4VZMHT3) [**GICOOL 9x3.50-4 Zero Turn Mower Flat Free Tire and Wheel Assembly (2-Pack) Smooth Tread Front Tires for ZTR Mowers Adjustable Centered Hub Length 3.5-4-4.5-5 3/4 & 5/8 Bearing Bore**GICOOL**$48.47**4.5★**▲ 70%**](https://www.amazon.com/dp/B0FX3YWZ72)
**~~View all trending →~~**
## **What buyers say about 9x3.50-4 tire**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**26%
*“Exact fit”*
**Quality-Overall**23%
*“Good quality set with a lot of uses”*
**Value For Money**11%
*“Good value”*
**Wheel Quality**9%
*“wheel good”*
**Assembly/Installation**6%
*“Easy installation”*
**Durability**4%
*“durable”*
**Advertised Vs Actual Product**4%
*“does the job”*
**Smell**3%
*“Fast shipping love the smell of new rubberr”*
**Material Quality**2%
*“Good Heavier Grade Rubber Treaded Tires W/Tubes - Good Treaded Traction - Fits my Go Cart”*
**Friction**1%
*“Good Heavier Grade Rubber Treaded Tires W/Tubes - Good Treaded Traction - Fits my Go Cart”*
### **What buyers complain about **
**Quality-Overall**40%
*“Poor quality”*
**Durability**16%
*“Didnt last 15 minutes”*
**Size-Overall**6%
*“They seem a bit taller”*
**Mounting**3%
*“send them with no bearings installed”*
**Value For Money**3%
*“Can get a better price”*
**Leak-Proof**3%
*“leaking ones on a Tomcat floor scrubber used at a vehicle repair facility”*
**Hard Feel**3%
*“They are harder/stiffer than I hoped”*
**Advertised Vs Actual Product**2%
*“Item not as described”*
**Strength**2%
*“it appears too flimsy for that use”*
**Weight Heavy**2%
*“It turned out a lot heavier than I was planning”*
### **Top return reasons **
**Size-Overall**66%
**Advertised Vs Actual Product**8%
**Functionality-Overall**8%
**Assembly/Installation**4%
**Compatibility-Overall**4%
**Quality-Overall**3%
**Material Quality**2%
**Durability**2%
**Defective Material/Parts**1%
**Weight Light**1%
## **Common questions**
- **Is 9x3.50-4 tire profitable to sell on Amazon United States?**
- The niche generates $41K/yr across 21 tracked products. 2 of 7 products launched in the last 360 days are still selling. 90-day search growth is +111.4%. Flapen's verdict: Worth a look (63/100).
- **How competitive is the 9x3.50-4 tire niche?**
- 18 brands and 39 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 61% of demand.
- **What do buyers complain about in 9x3.50-4 tire?**
- Top complaints mined from reviews: Quality-Overall, Durability, Size-Overall. The return rate is 2.9%.
- **When does demand for 9x3.50-4 tire peak?**
- Demand peaks in Apr–May–Jun–Jul–Aug; the busiest month runs 5.8× the quietest.
- **What does it cost to enter the 9x3.50-4 tire niche?**
- Listings span $19.96–$65.99; the average listing price is $39.94 (sweet spot $15–$100). The average incumbent carries 261 reviews — the moat a new listing must climb.
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