---
title: "125cc engine — Niche Verdict: Skip it (49/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/125cc-engine"
last_updated: "2026-07-09T23:40:09.293Z"
locale: en
meta:
  description: "a small market ($37K/yr) — 125cc engine doesn't clear our bar today."
  "og:description": "a small market ($37K/yr) — 125cc engine doesn't clear our bar today."
  "og:title": "125cc engine — Niche Verdict: Skip it (49/100) | Amazon United States - Flapen"
---

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# **125cc engine**

**Skip it****49/100 **

a small market ($37K/yr) — 125cc engine doesn't clear our bar today.

**Market/yr**

**$37K**

**Growth (1y)**

**+186.2%**

**Products**

**18**

**Brands**

**15**

was 16 a year ago

**Sellers**

**16**

**Price range**

**$148.00–$479.58**

**Returns**

**0.0%**

**Rating**

**4.1★**

**Skip it**

Scored 49/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns

Market size

**2**

 ×0.30

Growth

**75**

 ×0.30

Competition

**41**

 ×0.20

Quality gap

**79**

 ×0.10

Returns

**100**

 ×0.10

## **Demand**

Weekly Amazon search volume, last 104 weeks — +186.2% year over year.

6K3KSpike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

## **Seasonality**

Monthly demand index across the year — 1.00 is average.

JFMAMJJASOND

Peak months: Apr, May · busiest ÷ quietest = 1.6×

## **Competition**

- LIYUANJUN42% - TBVECHI10% - Knwigoe8% - NAZEAOB7% - Offabing6% - siohdagu4% - Other (9 brands)23%

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them. 15 brands and 16 sellers compete here.

**Brands**

**15 **▼falling

was 16 a year ago

**Sellers**

**16**

**Top 5 brand share**

**73%**

#ProductBrandPriceRatingReviewsClick shareTrend

1
![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](https://m.media-amazon.com/images/I/41WfWsRadkL.jpg) [**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**](https://www.amazon.com/dp/B0CD2F712S)

LIYUANJUN$148.704.3★7129%▼falling

2
![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](https://m.media-amazon.com/images/I/51CLz28Cc9L.jpg) [**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**](https://www.amazon.com/dp/B0CFKLNFF1)

LIYUANJUN$181.484.0★2913%▲rising

3
![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](https://m.media-amazon.com/images/I/41CwXmRSpsL.jpg) [**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**](https://www.amazon.com/dp/B0DLGNB27V)

Knwigoe$163.624.0★318%▼falling

4
![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](https://m.media-amazon.com/images/I/51nsWBDsCtL.jpg) [**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**](https://www.amazon.com/dp/B0B6VKQ6NT)

TBVECHI$179.024.4★106%▲rising

5
![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](https://m.media-amazon.com/images/I/51WfIRubVbL.jpg) [**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**](https://www.amazon.com/dp/B0D6Y565D7)

Offabing$148.004.0★106%▲rising

6
![125CC 4-Stroke Semi Auto Engine Motor ATV Quad Engine Motor Complete Kit 4 Speed Electric Starter Motorcycle Engine W/Reverse Electric Starter Single Cylinder Air-Cooling(Black)](https://m.media-amazon.com/images/I/41IlwaxousL.jpg) [**125CC 4-Stroke Semi Auto Engine Motor ATV Quad Engine Motor Complete Kit 4 Speed Electric Starter Motorcycle Engine W/Reverse Electric Starter Single Cylinder Air-Cooling(Black)**](https://www.amazon.com/dp/B0DJ93FD8B)

siohdagu$172.903.9★234%▼falling

7
![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](https://m.media-amazon.com/images/I/414zEmBMnwL.jpg) [**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**](https://www.amazon.com/dp/B0GQKB3CTM)

NAZEAOB$193.605.0★14%▲rising

8
![TBVECHI 140cc Engine Motor For Pit Dirt Bike SSR Apollo Coolster 125cc XR50 ATC70 ST90K1 CS90 4-Stroke Engine Motor Replacement Kits](https://m.media-amazon.com/images/I/51sszeOfzzL.jpg) [**TBVECHI 140cc Engine Motor For Pit Dirt Bike SSR Apollo Coolster 125cc XR50 ATC70 ST90K1 CS90 4-Stroke Engine Motor Replacement Kits**](https://www.amazon.com/dp/B0BZVRZZ8N)

TBVECHI$218.153.8★153%▲rising

9
![4-Stroke 125CC 15w-40 Engine Motor Single Cylinder with Air-Cooled Motor Engine For Honda CRF50 CRF70 XR50 XR70 Dirt Pit Bike](https://m.media-amazon.com/images/I/51ln8JvAbKL.jpg) [**4-Stroke 125CC 15w-40 Engine Motor Single Cylinder with Air-Cooled Motor Engine For Honda CRF50 CRF70 XR50 XR70 Dirt Pit Bike**](https://www.amazon.com/dp/B07KF8MVBY)

GDAE10$243.623.8★383%▲rising

10

![Lifan 125cc Engine Semi-Auto 4 Stroke Motor for Trail Bike CT70 90 110 125 Dirt Bike Trike Four Wheeler](https://m.media-amazon.com/images/I/51hE0U2lNpL.jpg) [**Lifan 125cc Engine Semi-Auto 4 Stroke Motor for Trail Bike CT70 90 110 125 Dirt Bike Trike Four Wheeler**](https://www.amazon.com/dp/B08G8HB1F5)

TDPRO$479.584.8★233%▼falling

11

![CUBELLIN Upgrade 125cc Engine Pit Dirt Bike Engine Kit Manual Clutch 4-Stroke Motor Single Cylinder Motor Engine for Honda XR50 XR70 CRF50 CRF70 & Dirt Pit Bike & ATV Go Kart Motorcycle](https://m.media-amazon.com/images/I/51oYertJICL.jpg) [**CUBELLIN Upgrade 125cc Engine Pit Dirt Bike Engine Kit Manual Clutch 4-Stroke Motor Single Cylinder Motor Engine for Honda XR50 XR70 CRF50 CRF70 & Dirt Pit Bike & ATV Go Kart Motorcycle**](https://www.amazon.com/dp/B0CYC2PXMW)

CUBELLIN$175.943.6★173%▼falling

12

![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](https://m.media-amazon.com/images/I/418pXone+lL.jpg) [**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**](https://www.amazon.com/dp/B0FF8PPGB5)

NAZEAOB$182.805.0★13%▲rising

13

![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](https://m.media-amazon.com/images/I/41pwy9ojxBL.jpg) [**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**](https://www.amazon.com/dp/B0GV6HCVB6)

BTGSHYNM$165.913.3★33%▲rising

14

![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](https://m.media-amazon.com/images/I/410Dt+BODML.jpg) [**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**](https://www.amazon.com/dp/B07L4NVXQ3)

TFCFL$219.644.0★923%▲rising

15

![125CC 4 Stroke Engine Motor Kit Single Cylinder with Air-Cooled Motor Engine Pit Dirt Bike ATV Quad Kit Manual Clutch Complete Kit for Honda XR50 XR70 CRF50 CRF70 Motorcycle Spark Plug A7TC (125CC)](https://m.media-amazon.com/images/I/51APcgKvdPL.jpg) [**125CC 4 Stroke Engine Motor Kit Single Cylinder with Air-Cooled Motor Engine Pit Dirt Bike ATV Quad Kit Manual Clutch Complete Kit for Honda XR50 XR70 CRF50 CRF70 Motorcycle Spark Plug A7TC (125CC)**](https://www.amazon.com/dp/B0CQFL4XXR)

Bikerid$268.033.6★512%▼falling

**~~Showing 15 of 18 — show all ~~**

## **Product shelf**

All 18 tracked products in this niche.

Top sellersNewestTrending

[![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](https://m.media-amazon.com/images/I/41WfWsRadkL.jpg)**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**$148.70**4.3★71 reviews](https://www.amazon.com/dp/B0CD2F712S) [![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](https://m.media-amazon.com/images/I/51CLz28Cc9L.jpg)**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**$181.48**4.0★29 reviews](https://www.amazon.com/dp/B0CFKLNFF1) [![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](https://m.media-amazon.com/images/I/41CwXmRSpsL.jpg)**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**$163.62**4.0★31 reviews](https://www.amazon.com/dp/B0DLGNB27V) [![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](https://m.media-amazon.com/images/I/51nsWBDsCtL.jpg)**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**$179.02**4.4★10 reviews](https://www.amazon.com/dp/B0B6VKQ6NT) [![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](https://m.media-amazon.com/images/I/51WfIRubVbL.jpg)**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**$148.00**4.0★10 reviews](https://www.amazon.com/dp/B0D6Y565D7) [![125CC 4-Stroke Semi Auto Engine Motor ATV Quad Engine Motor Complete Kit 4 Speed Electric Starter Motorcycle Engine W/Reverse Electric Starter Single Cylinder Air-Cooling(Black)](https://m.media-amazon.com/images/I/41IlwaxousL.jpg)**125CC 4-Stroke Semi Auto Engine Motor ATV Quad Engine Motor Complete Kit 4 Speed Electric Starter Motorcycle Engine W/Reverse Electric Starter Single Cylinder Air-Cooling(Black)** siohdagu**$172.90**3.9★23 reviews](https://www.amazon.com/dp/B0DJ93FD8B) [![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](https://m.media-amazon.com/images/I/414zEmBMnwL.jpg)**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**$193.60**5.0★1 reviews](https://www.amazon.com/dp/B0GQKB3CTM) [![TBVECHI 140cc Engine Motor For Pit Dirt Bike SSR Apollo Coolster 125cc XR50 ATC70 ST90K1 CS90 4-Stroke Engine Motor Replacement Kits](https://m.media-amazon.com/images/I/51sszeOfzzL.jpg)**TBVECHI 140cc Engine Motor For Pit Dirt Bike SSR Apollo Coolster 125cc XR50 ATC70 ST90K1 CS90 4-Stroke Engine Motor Replacement Kits** TBVECHI**$218.15**3.8★15 reviews](https://www.amazon.com/dp/B0BZVRZZ8N)

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Motor Power**41%

*“Perfect for my replacement motor”*

**Value For Money**10%

*“a 125cc 4 speed motor for 250$ sounds like a good deal”*

**Efficiency**9%

*“Works great and runs smooth”*

**Size-Overall**7%

*“Fits”*

**Compression**5%

*“Definitely has compression”*

**Quality-Overall**4%

*“Robust Build Quality”*

**Assembly/Installation**4%

*“ran great, was easy to install”*

**Strength**4%

*“Been going strong so far”*

**Ease Of Use**3%

*“is super easy”*

**Advertised Vs Actual Product**2%

*“As described and no issues so far”*

### **What buyers complain about **

**Assembly/Installation**18%

*“i had a issue with install”*

**Functionality-Overall**16%

*“Fail to make it work”*

**Instructions/User Manual/Troubleshooting**13%

*“the delivery Person could not follow instruction”*

**Quality-Overall**8%

*“Junk”*

**Durability**5%

*“It broke”*

**Mechanism Issues**5%

*“The motor mount holes allow the motor to shift causing constant loosening of the chain”*

**Defective Material/Parts**5%

*“Cracked case”*

**Leak-Proof**4%

*“Did have a oil leak”*

**Heating**3%

*“Runs terrible, blows oil, and gets terribly hot”*

**Lubrication**3%

*“Be mindful as it is totally unusable if it cannot hold any oil”*

#### **Top return reasons**- Defective Material/Parts19% - Motor Issues18% - Compatibility-Overall12% - Size-Overall11% - Leak-Proof11% - Functionality-Overall10% - Compression5% - Flammable2% - Rusts/Corrodes2% - Ease Of Use2%