235/40/18
Worth a lookShows low returns (0.0%), but prices mostly outside the sweet spot ($68.01–$322.75) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Review moat
Good893.42avg incumbent reviews — the moat a new listing must climb
Avg price
Good$142.01avg listing price — sweet spot $15–$100
Competition
Good52%top-5 click share — leaders hold, buyers still browse
Market size
Good$290K$290K/yr · 128K searches
Brand share
Okay75%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+12.7%90-day search growth — must beat 0% to launch
Conversion
Bad1.6%search→purchase rate — share of searches ending in a sale
Price range
Bad$68.01–$322.75cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, 235/40/18 is a $290K/yr Amazon United States market (128K searches/yr). The top 5 brands hold 75% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
235/40/18 market data
- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- $426K–$568K
- units × avg price
- Conversion rate
- 1.6%
- Avg BSR
- #848
- Page quality
- 0%
- Prime
- 69%
- Sponsored
- 73%
- Out of stock
- 5.8%
- Avg brand age
- 73 months
- Avg seller age
- 163 days
Competition & brand share
The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.Brands
16 falling
Sellers
33
Top-5 brand share
75%
Top 20: 100%
Top-5 click share
52%
Top 20: 92%
Open market
20%
- Fullway26%
- Lexani20%
- Forceum14%
- Continental8%
- Aplus6%
- Ironman5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +12.7% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top 235/40/18 search terms
- 235/40r1863K/yr
- 235/40/1817K/yr
- 235 40 1815K/yr
- 235/40r18 tires9K/yr
- 235/40/18 tires9K/yr
- 235 40 18 tires6K/yr
- 235/40r18 91w4K/yr
- 235/40zr185K/yr
Top 235/40/18 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Lexani LXUHP-207 UHP 235/40ZR18 95W XL Passenger Tire
Lexani$71.344.5★2,771 rev
Fullway HP108 All-Season Passenger Car High Performance Radial Tire-235/40R18 235/40ZR18 235/40/18 235/40-18 95W Load Range XL 4-Ply BSW Black Side Wall UTQG 380AA
Fullway$80.364.5★13,514 rev
Set of 2 (TWO) Forceum Hexa-R All-Season Passenger Car High Performance Radial Tires-235/40R18 235/40ZR18 235/40/18 235/40-18 95Y Load Range XL 4-Ply BSW Black Side Wall UTQG 400AA
Forceum$152.944.3★95 rev
Set of 2 (TWO) Fullway HP108 All-Season Passenger Car High Performance Radial Tires-235/40R18 235/40ZR18 235/40/18 235/40-18 95W Load Range XL 4-Ply BSW Black Side Wall UTQG 380AA
Fullway$158.514.4★364 rev
Set of 4 (FOUR) Forceum Hexa-R All-Season Passenger Car High Performance Radial Tires-235/40R18 235/40ZR18 235/40/18 235/40-18 95Y Load Range XL 4-Ply BSW Black Side Wall UTQG 400AA
Forceum$300.734.3★36 rev
Newest
by launch date
Set of 4 (FOUR) Aplus PRO Racing All Season Passenger High Performance Radial Tires-235/40R18 235/40ZR18 235/40/18 235/40-18 95W Load Range XL 4-Ply BSW Black Side Wall UTQG 420AA
Aplus$280.523 rev
Accelera Iota EVT Passenger Car All-Season High Performance Radial Tire-235/40R18 235/40ZR18 235/40/18 235/40-18 95Y Load Range XL 4-Ply BSW Black Side Wall UTQG 320AA
Accelera$72.8599 rev
Aplus Pro Racing 235/40ZR18 95W XL Racing Tire
Aplus$69.69269 rev
Summit Ultramax UHP Performance Passenger Tire 235/40R18 235/40/18
SUMMIT$79.552 rev
Continental ProContact RX All Season 235/40R18 91W Passenger Tire
Continental$141.5719 rev
Trending
90-day click momentumSet of 4 (FOUR) Forceum Hexa-R All-Season Passenger Car High Performance Radial Tires-235/40R18 235/40ZR18 235/40/18 235/40-18 95Y Load Range XL 4-Ply BSW Black Side Wall UTQG 400AA
Forceum$300.734.3★
Set of 4 (FOUR) Aplus PRO Racing All Season Passenger High Performance Radial Tires-235/40R18 235/40ZR18 235/40/18 235/40-18 95W Load Range XL 4-Ply BSW Black Side Wall UTQG 420AA
Aplus$280.525.0★
Aplus Pro Racing 235/40ZR18 95W XL Racing Tire
Aplus$69.694.6★
Summit Ultramax UHP Performance Passenger Tire 235/40R18 235/40/18
SUMMIT$79.555.0★
Ironman iMove Gen 3 A/S UHP All Season 235/40R18 95W Passenger Tire
Ironman$82.904.0★
What buyers say about 235/40/18
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality”
“Value for money is good”
“they ride good”
“Fit perfect”
“still going strong with over 35,000 miles”
“Fix really good”
“they ride good”
“Grippy in wet conditions”
“Second set perfect”
“Great traction and they look nice”
What buyers complain about
“Questionable reliability”
“Smell of rubber”
“A lot of reviewers on here expect 5 star nascar level quality on $70 tires”
“Amazon says they wont fit my car”
Top return reasons
Common questions
- Is 235/40/18 profitable to sell on Amazon United States?
- The niche generates $290K/yr across 26 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +12.7%. Flapen's verdict: Worth a look (50/100).
- How competitive is the 235/40/18 niche?
- 16 brands and 33 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 75% of demand.
- What do buyers complain about in 235/40/18?
- Top complaints mined from reviews: Durability, Smell, Quality-Overall. The return rate is 0.0%.
- When does demand for 235/40/18 peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the 235/40/18 niche?
- Listings span $68.01–$322.75; the average listing price is $142.01 (sweet spot $15–$100). The average incumbent carries 893 reviews — the moat a new listing must climb.