125cc engine
Skip itPrices mostly outside the sweet spot ($148.00–$479.58) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Review moat
Incredible32.22avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Brand share
Good73%top-5 brand share — brands hold most of the demand
Growth
Okay+16.9%90-day search growth — must beat 0% to launch
Avg price
Okay$225.92avg listing price — sweet spot $15–$100
Competition
Okay63%top-5 click share — leaders hold, buyers still browse
Market size
Bad$37K$37K/yr · 181K searches
Conversion
Bad0.1%search→purchase rate — share of searches ending in a sale
Price range
Bad$148.00–$479.58cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, 125cc engine is a $37K/yr Amazon United States market (181K searches/yr). The top 5 brands hold 73% of demand. Demand peaks in Apr–May. Verdict: Skip it — 45/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
125cc engine market data
- Units sold / yr
- 250–500
- avg 0–100/product
- Revenue / yr
- $56K–$113K
- units × avg price
- Conversion rate
- 0.1%
- Avg BSR
- #877
- Page quality
- 0%
- Prime
- 0%
- Sponsored
- 100%
- Out of stock
- 5.5%
- Avg brand age
- 34 months
- Avg seller age
- 191 days
Competition & brand share
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.Brands
15 falling
Sellers
16
Top-5 brand share
73%
Top 20: 100%
Top-5 click share
63%
Top 20: 100%
Open market
23%
- LIYUANJUN42%
- TBVECHI10%
- Knwigoe8%
- NAZEAOB7%
- Offabing6%
- siohdagu4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +16.9% search growth over the last 90 days.Peak months: Apr, May · busiest ÷ quietest = 1.6×
Top 125cc engine search terms
- 125cc engine94K/yr
- lifan 125cc engine16K/yr
- 125 cc engine12K/yr
- ssr 125 engine9K/yr
- 125cc motor11K/yr
- 125cc dirt bike engine11K/yr
- ssr 125 motor7K/yr
- 125cc atv engine5K/yr
- 125cc pit bike engine5K/yr
- motor 125cc4K/yr
Top 125cc engine 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 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
LIYUANJUN 125CC 4-Stroke Engine Motor Kit Single Cylinder Air-Cooled Motor Engine for Honda CRF50 XR50 CRF70 Z50R QR50 Dirt Pit Bike Engine Kit with Manual Clutch and PZ22 Carburetor
LIYUANJUN$148.704.3★71 rev
LIYUANJUN 125CC Engine Motor 4-Stroke Semi Auto Engine for Go Kart ATV Quad Bike Buggy CDI/Air Cooling System Single-Cylinder with Reverse and 3 Forward Electrical Start
LIYUANJUN$181.484.0★29 rev
Knwigoe 125cc 4 Stroke Engine Motor Complete Kit Electric Start ATV Motor Semi-Auto Transmission Dirt Bike Engine with CDI Ignition Single Cylinder for Honda Pit Bike Motorcycle Go Kart
Knwigoe$163.624.0★31 rev
TBVECHI 4-Stroke 125CC Air-Cooled Engine Motor with Kick Start and Reverse for Honda CRF50 CRF70 XR50 XR70 Dirt Pit Bike Motorcycle Spark Plug A7TC
TBVECHI$179.024.4★10 rev
125cc 4 Stroke Engine Motor CDI Pit Dirt Bike Single Cylinder Manual Clutch Engine Motor Kit Fit for Honda CRF50 CRF70 XR50 XR70 Z50 Spark Plug A7TC Carburetor PZ16J
Offabing$148.004.0★10 rev
Newest
by launch date
BTGSHYNM 125cc Engine Motor 4 Stroke Semi Auto ATV Engine Motor w/Reverse Electric CDI/Start Single-Cylinder Air Cooling Engine for Go Kart ATV Quad Bike Buggy
BTGSHYNM$165.913 rev
NAZEAOB 125cc 4 Stroke Engine Motor Semi-Auto ATV Engine Motor Kit with CDI Ignition & Electrical Start Single Cylinder Air-Cooling Motorcycle Engine with 3 Forward and Reverse
NAZEAOB$193.601 rev
NAZEAOB 125cc 4 Stroke Engine Motor Semi Auto Transmission Electric Start ATV Quad Engine Motor with CDI Ignition Reverse Single Cylinder Complete Kit for Go Kart Honda Pit Dirt Bike Motorcycle
NAZEAOB$182.801 rev
125cc 4-Stroke Engine Assembly Set with Carburetor Wiring Harness 428 Chain Air Filter Electric Kick Start Semi Auto Motor for ATV Dirt Pit Bike CT70 Z50 CRF50 XR50 Style
CWTD$464.232 rev
Knwigoe 125cc 4 Stroke Engine Motor Complete Kit Electric Start ATV Motor Semi-Auto Transmission Dirt Bike Engine with CDI Ignition Single Cylinder for Honda Pit Bike Motorcycle Go Kart
Knwigoe$163.6231 rev
Trending
90-day click momentumBTGSHYNM 125cc Engine Motor 4 Stroke Semi Auto ATV Engine Motor w/Reverse Electric CDI/Start Single-Cylinder Air Cooling Engine for Go Kart ATV Quad Bike Buggy
BTGSHYNM$165.913.3★
NAZEAOB 125cc 4 Stroke Engine Motor Semi-Auto ATV Engine Motor Kit with CDI Ignition & Electrical Start Single Cylinder Air-Cooling Motorcycle Engine with 3 Forward and Reverse
NAZEAOB$193.605.0★
TBVECHI 4-Stroke 125CC Air-Cooled Engine Motor with Kick Start and Reverse for Honda CRF50 CRF70 XR50 XR70 Dirt Pit Bike Motorcycle Spark Plug A7TC
TBVECHI$179.024.4★
TFCFL 125cc 4 Stroke Dirt Bike Engine Air Cooled Single Cylinder Manual Clutch CDI Ignition 4 Speed Kick Starter Fit for Honda CRF50 CRF70 XR50 XR70 Z50 Pit Bike Motorcycle Spark Plug A7TC
TFCFL$219.644.0★
4-Stroke 125CC 15w-40 Engine Motor Single Cylinder with Air-Cooled Motor Engine For Honda CRF50 CRF70 XR50 XR70 Dirt Pit Bike
GDAE10$243.623.8★
What buyers say about 125cc engine
What buyers praise and complain about, mined from review topics.What buyers love
“Perfect for my replacement motor”
“a 125cc 4 speed motor for 250$ sounds like a good deal”
“Works great and runs smooth”
“Fits”
“Definitely has compression”
“Robust Build Quality”
“ran great, was easy to install”
“Been going strong so far”
“is super easy”
“As described and no issues so far”
What buyers complain about
“i had a issue with install”
“Fail to make it work”
“the delivery Person could not follow instruction”
“Junk”
“It broke”
“The motor mount holes allow the motor to shift causing constant loosening of the chain”
“Cracked case”
“Did have a oil leak”
“Runs terrible, blows oil, and gets terribly hot”
“Be mindful as it is totally unusable if it cannot hold any oil”
Top return reasons
Common questions
- Is 125cc engine profitable to sell on Amazon United States?
- The niche generates $37K/yr across 18 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +16.9%. Flapen's verdict: Skip it (45/100).
- How competitive is the 125cc engine niche?
- 15 brands and 16 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 73% of demand.
- What do buyers complain about in 125cc engine?
- Top complaints mined from reviews: Assembly/Installation, Functionality-Overall, Instructions/User Manual/Troubleshooting. The return rate is 0.0%.
- When does demand for 125cc engine peak?
- Demand peaks in Apr–May; the busiest month runs 1.6× the quietest.
- What does it cost to enter the 125cc engine niche?
- Listings span $148.00–$479.58; the average listing price is $225.92 (sweet spot $15–$100). The average incumbent carries 32 reviews — the moat a new listing must climb.