18x8.50-8 tube
Skip it45/100a small market ($44K/yr) — 18x8.50-8 tube doesn't clear our bar today.
Market/yr
$44K
Growth (1y)
+208.0%
Products
14
Brands
13
was 12 a year ago
Sellers
15
Price range
$14.25–$24.12
Returns
2.3%
Rating
4.4★
Skip it
Scored 45/100 across market size, growth, competition, quality gap, and returns.
Demand
Weekly Amazon search volume, last 102 weeks — +208.0% year over year.Seasonality
Monthly demand index across the year — 1.00 is average.Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 4.8×
Competition
- AR-PRO33%
- CALU LUKY15%
- FVRITO8%
- SPORTYOUTH8%
- GICOOL8%
- weyleity7%
- Other (7 brands)22%
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them. 13 brands and 15 sellers compete here.
Brands
13 rising
was 12 a year ago
Sellers
15
Top 5 brand share
72%
Product shelf
All 14 tracked products in this niche.
18x8.50/9.50-8 Replacement Inner Tube with TR-13 Valve Stem (2-Pack) - For Golf Cart/Tractor/Lawn Mower and More
AR-PRO
$24.124.3★20,285 reviews
18x8.50-8/18x9.50-8 Inner Tube with TR-13 Valve Stem - 18x8.50/9.50-8 Replacement Inner Tube For Golf Cart Tractor Lawn Mower Hand Trucks Wheelbarrows and More (2-Pack)
CALU LUKY
$22.994.6★230 reviews
FVRITO 18x8.50-8 18x9.50-8 Inner Tube for ATV Quad 4 Wheeler Go Kart Lawn Tractor Snow Blower Golf Cart Garden Trailer Heavy Duty Lawn Mower Turf With TR-13 Straight Valve Stem 2 Pack
FVRITO
$23.324.5★605 reviews
18x8.50-8 18x9.50-8 Inner Tubes 2 Pack Heavy Duty Replacement Tire Inner Tubes with Straight Valve Stem for Lawn Mowers Wheelbarrows ATVs Go Karts Tractors Snow Blowers Golf Carts Trailers
SPORTYOUTH
$22.194.4★1,260 reviews
GICOOL 18x8.50/9.50-8 Inner Tubes 2 Pack with TR13 Valve Stem Heavy-Duty Replacement Tubes for Lawn Mowers Tractors Golf Carts Scooters Go Karts Wagons Trailers ATVs Snow Blowers
GICOOL
$22.474.4★1,174 reviews
AR-PRO Replacement 18x8.50-8 18x9.50-8 Inner Tubes for Golf Cart ATV UTV Lawn Tractor Garden Trailer Snow Blowers and More - with TR-13 Straight Valve Stems - Made from Durable Butyl Rubber
AR-PRO
$16.044.4★331 reviews
weyleity 2 Pack 18x8.50-8 18x9.50-8 Inner Tube | Heavy Duty Replacement Tire Tubes with TR13 Straight Valve Stem for Go Karts ATVs (18x8.5/9.5-8 TR13)
weyleity
$18.944.4★155 reviews
FLKQC 2 Pack 18X8.50/9.50-8 Inner Tubes with TR-13 Valve Stem Replacement Lawn Mower Tire Tubes for Tractors Wheelbarrows ATVs Go Karts & More (Fits 8.5 to 9.5 Wide)
FLKQC
$18.364.4★29 reviews
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Good value”
“Good Quality”
“Great fit”
“Works as should”
“These are definitely heavy duty”
“Durable & Fit Great”
“were easy to install”
“The material feels thick”
“Works as designed”
“beats buying new tires when the tread is still good”
What buyers complain about
“Tubes are pure garbage”
“the valve stem broke off near the base when I was inserting it through the hole in the rim”
“DID NOT HOLD AIR”
“Does not fit as stated”
“They are a bit more challenging because of the thickness when installing”
“brittle or something or very low quality”
“Valve stem broke when trying to install”
Top return reasons
- Size-Overall70%
- Functionality-Overall5%
- Value For Money5%
- Compatibility-Overall5%
- Assembly/Installation4%
- Advertised Vs Actual Product2%
- Maintenance And Repair1%
- Pressure1%
- Quality-Overall1%
- Strength1%