4x137 wheel spacers
Skip itA small market ($82K/yr) — this niche doesn't clear our bar today.
Review moat
Incredible64.9avg incumbent reviews — the moat a new listing must climb
Avg price
Great$78.28avg listing price — sweet spot $15–$100
Conversion
Great7.6%search→purchase rate — share of searches ending in a sale
Brand share
Good62%top-5 brand share — brands hold most of the demand
Price range
Good$31.99–$133.40cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good54%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Bad-1.1%90-day search growth — must beat 0% to launch
Market size
Bad$82K$82K/yr · 14K searches
Returns
Bad6.2%return rate — above 5% kills the launch gate
According to Flapen's Amazon United States niche tracking, 4x137 wheel spacers is a $82K/yr Amazon United States market (14K searches/yr). The top 5 brands hold 62% of demand. Verdict: Skip it — 48/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
4x137 wheel spacers market data
- Units sold / yr
- 500–750
- avg 0–100/product
- Revenue / yr
- $39K–$59K
- units × avg price
- Conversion rate
- 7.6%
- Avg BSR
- #836
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 97%
- Out of stock
- 4.6%
- Avg brand age
- 60 months
- Avg seller age
- 202 days
Competition & brand share
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.Brands
18 rising
Sellers
25
Top-5 brand share
62%
Top 20: 100%
Top-5 click share
54%
Top 20: 89%
Open market
31%
- Rough Country17%
- FLYCLE16%
- EVIL ENERGY10%
- Richeer10%
- YHTAUTO9%
- ECCPP7%
Demand
Weekly Amazon search volume, last 18 weeks — -1.1% search growth over the last 90 days.Top 4x137 wheel spacers 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
Rough Country 1.5 Wheel Spacers for Can-Am Defender | 4x137-10093 Aluminum/Spacer
Rough Country$77.174.7★305 rev
2 inch 4x137 Wheel Spacers for CAN-AM Defender Outlander Commander Kawasaki Mule 4PCS 4x137mm Wheel Spacer with 10x1.25 Studs & 110mm Bore
FLYCLE$98.894.4★185 rev
Richeer 2 Inch 4x137mm ATV Wheel Spacer for Can-Am Commander Outlander Defender Bombardier Renegade Mule 4PCS 4X137 Wheel Spacers with M10X1.25 Studs & 110mm hub bore
Richeer$99.014.5★98 rev
GAsupply ATV 4x137 Wheel Spacers 1.5 inch Fit for Can-Am Maverick Honda 1000R 1000X 1000-3 1000-5 38mm 4 Lug Black 4x137mm Wheel Spacer with 12x1.5 Studs 110mm Hub Bore 4PCS
GAsupply$98.254.6★37 rev
YHTAUTO 4x137mm Wheel Spacers 1 inch Fits Bombardier Can-Am Kawasaki Suzuki Models Outlander Commander Renegade Mule Prairie Tire Spacers w/ M10x1.25 Studs 110mm Center Bore 4 Lug 2PCS
YHTAUTO$50.394.5★80 rev
Newest
by launch date
EVIL ENERGY 4x137 Wheel Spacers Compatible with EZGO EZ GO Golf Cart Club Car ATV 2 inch Lug Centric Wheel Spacer 4 pcs 4x137 mm with 110 Hub Bore M10x1.25 Stud Not Hubcentric Black
EVIL ENERGY$95.662 rev
EVIL ENERGY 4x137 Wheel Spacers Compatible with EZGO EZ GO Golf Cart Club Car ATV 2 inch Lug Centric Wheel Spacer 4 pcs 4x137 mm with 110 Hub Bore M12x1.5 Stud Not Hubcentric Silver
EVIL ENERGY$99.082 rev
MZS 4x137 Wheel Spacers 2 for Defender - M101.25 Studs 110mm Center Bore Compatible with HD5 / HD8 / HD10 4WD 4/137 4 Lug Tire - 4 Pack
MZS$133.4031 rev
MZS 4x137 Wheel Spacers 2 for Defender - M101.25 Studs 110mm Center Bore Compatible with HD5 / HD8 / HD10 4WD 4/137 4 Lug Tire - 2 Pack
MZS$82.1331 rev
GAsupply ATV 4x137 Wheel Spacers 1.5 inch Fit for Can-Am Maverick Honda 1000R 1000X 1000-3 1000-5 38mm 4 Lug Black 4x137mm Wheel Spacer with 12x1.5 Studs 110mm Hub Bore 4PCS
GAsupply$98.2537 rev
Trending
90-day click momentumEVIL ENERGY 4x137 Wheel Spacers Compatible with EZGO EZ GO Golf Cart Club Car ATV 2 inch Lug Centric Wheel Spacer 4 pcs 4x137 mm with 110 Hub Bore M12x1.5 Stud Not Hubcentric Silver
EVIL ENERGY$99.085.0★
EVIL ENERGY 4x137 Wheel Spacers Compatible with EZGO EZ GO Golf Cart Club Car ATV 2 inch Lug Centric Wheel Spacer 4 pcs 4x137 mm with 110 Hub Bore M10x1.25 Stud Not Hubcentric Black
EVIL ENERGY$95.665.0★
VLAOSCHI Black Forged 4x137 ATV Wheel Spacers 1.5 Inch with 12x1.25 Studs Compatible with Kawasaki 4 Lug for Mule 2020 2500 2510 2520 3000 4000 4010 Trans PRODX PROFX Teryx4 Teryx 750 800 - Pack of 2
VLAOSCHI$58.103.8★
VLAOSCHI Black Forged 4x137 ATV Wheel Spacers 2 Inch with 10x1.25 Studs Compatible with Kawasaki Can-Am Bombardier Suzuki 4 Lug 4/137 for Outlander Commander Renegade Mule Prairie - Pack of 2
VLAOSCHI$68.524.2★
ROMELACK 2 Wheel Spacer Adapters 4x137mm to 4x137mm 6061 Aluminum Compatible with Can-Am Outlander Renegade Commander Maverick Defender Traxter(4 Pcs)
ROMELACK$94.555.0★
What buyers say about 4x137 wheel spacers
What buyers praise and complain about, mined from review topics.What buyers love
“Fit perfectly”
“Overall, great quality for the price and a solid upgrade if you want extra width and better stability on a Can-Am X3”
“They worked perfectly”
“Easy to install”
“Very nice spacers”
“Good value”
“these are convenient”
“functional appearance without unnecessary design elements”
“The materials feel durable and capable of handling regular use on golf carts and similar vehicles”
“Solid Fit and Reliable Performance for Off Road Use”
What buyers complain about
“One of the post stripped”
“the wheel studs were all the way pulled in”
Top return reasons
Common questions
- Is 4x137 wheel spacers profitable to sell on Amazon United States?
- The niche generates $82K/yr across 31 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is -1.1%. Flapen's verdict: Skip it (48/100).
- How competitive is the 4x137 wheel spacers niche?
- 18 brands and 25 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 62% of demand.
- What do buyers complain about in 4x137 wheel spacers?
- Top complaints mined from reviews: Defective Material/Parts, Wheel Quality. The return rate is 6.2% — above our launch gate.
- What does it cost to enter the 4x137 wheel spacers niche?
- Listings span $31.99–$133.40; the average listing price is $78.28 (sweet spot $15–$100). The average incumbent carries 65 reviews — the moat a new listing must climb.