---
title: "St145r12 Trailer Tire — $127K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/st145r12-trailer-tire"
last_updated: "2026-08-07T17:30:02.389Z"
locale: en
meta:
description: "Niche score 46/100 · $127K/yr market · 27K searches/yr · $134.14 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $127K/yr market · 27K searches/yr · $134.14 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "St145r12 Trailer Tire — $127K/yr Amazon US Niche (2026) - Flapen"
---
# **st145r12 trailer tire**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 29Growth 90Conversion 44Competition 19Returns 100Price range 20Avg price 64Brand share 0Review moat 95Quality gap 19
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Review moat**
**Great****109.25**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Great****+96.7%**
90-day search growth — must beat 0% to launch
**Avg price**
**Good****$134.14**
avg listing price — sweet spot $15–$100
**Conversion**
**Okay****3.5%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Okay****$127K**
$127K/yr · 27K searches
**Price range**
**Bad****$65.85–$240.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Bad****77%**
top-5 click share — a locked-up shelf
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, st145r12 trailer tire is a $127K/yr Amazon United States market (27K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Skip it — 46/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **st145r12 trailer tire market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$134K–$168K**
- units × avg price
- **Conversion rate**
- **3.5%**
- **Avg BSR**
- **#193**
- **Page quality**
- **0%**
- **Prime**
- **8%**
- **Sponsored**
- **50%**
- **Out of stock**
- **1.9%**
- **Avg brand age**
- **51 months**
- **Avg seller age**
- **179 days**
## **Competition & brand share**
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**22**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**77%**
Top 20: 100%
**Open market**
**0%**
- eCustomRim89% - Carlisle5% - Kenda4% - Taskmaster Components2%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +96.7% search growth over the last 90 days.
800600Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 3.3×
[**Open Trend **](https://flapen.com/research/us/automotive/st145r12-trailer-tire/trend)
## **Top st145r12 trailer tire search terms**
- **st145r12 trailer tire**14K/yr+76.2%3.2% conv. - **145r12 trailer tire**5K/yr+175.9%2.7% conv. - **st145r12 trailer tire and wheel**5K/yr+92.3%5.3% conv. - **st145r12**3K/yr+96.8%2.9% conv. [**All search terms **](https://flapen.com/research/us/automotive/st145r12-trailer-tire/search-terms)
## **Top st145r12 trailer 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%$13K20%$25K30%$38K40%$51K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**eCustomrim 2-Pack Radial Trailer Tire Rim ST145R12 12 Inch ST145/R12 12 Inch Load D 5 Lug On 4.5 Silver Grey Wheel - 6 Year Warranty w/Roadside**eCustomRim**$164.93**4.6★97 rev](https://www.amazon.com/dp/B0CJHB3BRG) [2**eCustomrim 2-Pack ST145/R12 DEEP TREAD Radial Trailer Tire Load Range E**eCustomRim**$112.01**4.5★190 rev](https://www.amazon.com/dp/B01L0P3YKQ) [3**eCustomrim Trailer Tire On Rim ST145R12 12 Inch Radial 145/R12 12 Inch Load D 5-4.5 Silver Grey Wheel - 6 Year Warranty w/Roadside**eCustomRim**$100.70**4.5★70 rev](https://www.amazon.com/dp/B0CRKRDV4B) [4**eCustomrim 2-Pack Aluminum 5 Lug Trailer Wheel 145/R12 Radial Load D Tire 12 Inch Black Rim ST145/R12-6 Year Warranty w/Roadside**eCustomRim**$240.21**4.8★154 rev](https://www.amazon.com/dp/B0CFDN9WML) [5**eCustomrim 2-Pack Trailer Tire Rim ST145/R12 12 Inch Radial Load E 5 Lug Silver Grey Wheel - 6 Year Warranty w/Roadside**eCustomRim**$207.58**4.6★142 rev](https://www.amazon.com/dp/B087W21CQP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Taskmaster Rambler Radial Tire-ST145R12 145X12 145-12 Load Range D LRD 8-Ply BSW Black Side Wall**Taskmaster Components**$78.49**0 rev5mo ago](https://www.amazon.com/dp/B0GL2B6N7X) [**eCustomrim ST145/R12 145/R12 DEEP TREAD Radial Trailer Tire Load Range E**eCustomRim**$65.85**23 rev2y ago](https://www.amazon.com/dp/B0CTJ5X64Z) [**eCustomrim 2-Pack ST145/R12 DEEP TREAD Radial Trailer Tire Load Range E**eCustomRim**$112.01**190 rev5y ago](https://www.amazon.com/dp/B01L0P3YKQ) [**ST145R12 LRE 10 PR Kenda Karrier Radial Trailer Tire**Kenda**$75.03**14 rev13y ago](https://www.amazon.com/dp/B00D5XDW72) [**eCustomrim 2-Pack Radial Trailer Tire Rim ST145R12 12 Inch ST145/R12 12 Inch Load D 5 Lug On 4.5 Silver Grey Wheel - 6 Year Warranty w/Roadside**eCustomRim**$164.93**97 rev14y ago](https://www.amazon.com/dp/B0CJHB3BRG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Taskmaster Rambler Radial Tire-ST145R12 145X12 145-12 Load Range D LRD 8-Ply BSW Black Side Wall**Taskmaster Components**$78.49**0.0★**▲ 95%**](https://www.amazon.com/dp/B0GL2B6N7X) [**eCustomrim 4-Pack ST145/R12 DEEP TREAD Radial Trailer Tire Load Range E**eCustomRim**$210.50**5.0★**▲ 71%**](https://www.amazon.com/dp/B0DZ8QRSCN) [**eCustomrim 2-Pack ST145/R12 DEEP TREAD Radial Trailer Tire Load Range E**eCustomRim**$112.01**4.5★**▲ 24%**](https://www.amazon.com/dp/B01L0P3YKQ) [**eCustomrim 2-Pack Radial Trailer Tire Rim ST145R12 12 Inch ST145/R12 12 Inch Load D 5 Lug On 4.5 Silver Grey Wheel - 6 Year Warranty w/Roadside**eCustomRim**$164.93**4.6★**▲ 18%**](https://www.amazon.com/dp/B0CJHB3BRG) [**eCustomrim Trailer Tire On Rim ST145/R12 145/R12 12 Inch Radial Load E 5 Lug Silver Grey Wheel - 6 Year Warranty w/Roadside**eCustomRim**$141.27**4.7★**— 1%**](https://www.amazon.com/dp/B084JQ9YRK)
**~~View all trending →~~**
## **What buyers say about st145r12 trailer tire**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**22%
*“Great value”*
**Quality-Overall**22%
*“Seems well made”*
**Wheel Quality**20%
*“Great looking wheels and greatest value”*
**Size-Overall**17%
*“Fit perfect”*
**Advertised Vs Actual Product**6%
*“Received as expected”*
**Ease Of Use**3%
*“easy as take old wheels off”*
**Design-Overall**2%
*“Attractive look”*
**Grip**2%
*“handle extremely well”*
**Safety Standards**2%
*“ensuring safety on our upcoming trip”*
**Durability**1%
*“We will see how well they last”*
### **What buyers complain about **
**Size-Overall**50%
*“Your stock ones wont fit as good”*
**Durability**25%
*“Tread wore out fast”*
**Thickness**8%
*“thicker than steel”*
### **Top return reasons **
**Size-Overall**78%
**Advertised Vs Actual Product**12%
**Compatibility-Overall**5%
**Functionality-Overall**3%
**Quality-Overall**3%
## **Common questions**
- **Is st145r12 trailer tire profitable to sell on Amazon United States?**
- The niche generates $127K/yr across 12 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +96.7%. Flapen's verdict: Skip it (46/100).
- **How competitive is the st145r12 trailer tire niche?**
- 4 brands and 22 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in st145r12 trailer tire?**
- Top complaints mined from reviews: Size-Overall, Durability, Thickness. The return rate is 0.0%.
- **When does demand for st145r12 trailer tire peak?**
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 3.3× the quietest.
- **What does it cost to enter the st145r12 trailer tire niche?**
- Listings span $65.85–$240.21; the average listing price is $134.14 (sweet spot $15–$100). The average incumbent carries 109 reviews — the moat a new listing must climb.
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