Oraimo Monster 100 Review: Should You Buy This E-Bike?

Oraimo Monster 100 review

The Oraimo Monster 100 is an affordable electric mountain bike featuring a 21-speed Shimano transmission, dual disc brakes, and a fast-charging battery.

Our experts identified 18 reasons to or not to buy the Oraimo Monster 100 e-bike. To make an informed decision, read the review before purchasing the Oraimo Monster 100.

Oraimo Monster 100 Review

Oraimo Monster 100 electric bike

Where To Buyβœ”





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Summary of Reviews

We have read all user and expert reviews on the Oraimo Monster 100. In summary, this is what users think.

 βœ”13 reasons to buy

  • Oraimo Monster 100 is a mountain electric bike. Users say the Monster 100 e-bike performs well on hills with pedal assist.
  • Monster 100 has a 350W Bafang Motor that reaches a top speed of 20 miles per hour.
  • Users say this bike is easy to assemble, taking only 30 minutes, and they recommend this bike for beginners.
  • Experts say the Oraimo Monster 100 has good build quality.
  • One user shared his experience after a 120-mile ride, saying, “I am 5’6″ and 180 lbs, and the Monster 100 can easily take me uphill.”
  • One expert says 26-inch wheels are good for a smooth and stable ride. They also mention that Oraimo tires are 2.1 inches wide, but most mountain electric bikes come with 1.9-inch-wide tires.
  • It has a fast-charging mode. The 36V 13Ah removable battery takes 3 hours to fully charge. The Oraimo company claims it can run for 7 miles with just a 15-minute charge.
  • The Oraimo Monster 100 has a 21-speed gear system and four assist modes. Experts say pedal assist levels 1-4 are useful for uphill rides.
  • It has dual disc brakes. Two users say the brakes work well and provide safety during rides.
  • Testers say the bike is built with an Oraimo AL alloy frame. The frame is high-strength and rustproof.
  • Users love this bike for its affordability. According to users, the Oraimo Monster 100 is the best electric bike under $600.
  • Users say the bike has a great look and doesn’t appear cheap. The bike looks like a regular electric bike.
  • Testers say the Monster 100 provides a smooth and comfortable ride. The front fork suspension gives a smooth ride on rough terrain.

❌5 reasons not to buy

  • A user reported that no lights or bells are included with this bike. The tires and tubes are also cheap.
  • One user says the seat is too narrow and uncomfortable for long rides. They plan to replace it with a more comfortable option.
  • The company says the Monster 100 is suitable for people 4’9″ and up, but a 5’1″ user found the bike to be too tall for them.
  • One user mentions that the cheap brakes become weak after getting caught in the rain.
  • An expert says the Oraimo Monster 100 is not good for longer rides. It can only go 22 miles on a single charge.

πŸ“‹Bottom line

The Oraimo Monster 100 is a great electric mountain bike for under $600. It is a lightweight mountain electric bike. The Monster 100 has a 350W hub motor, which allows riders to reach a top speed of 20 miles per hour. Experts appreciate its top speed but are unhappy with its battery range. The Oraimo Monster 100 can go 22 miles on a single charge. However, the 36V 13Ah battery takes only 3 hours to fully charge.

The Monster 100 has four pedal assist modes for riding on different terrains and has a smooth 21-speed gear system. The bike can handle different terrains, and the front fork enhances the smoothness and enjoyment of the ride. According to experts, the disc brakes work well in dry conditions but become weak after getting caught in water.

The Oraimo Monster 100 e-bike is a good choice for beginners. It is suitable for riders who are 5’3″ tall or above. This bike looks like a traditional bicycle and comes at an affordable price. Experts highly recommend this bike.


Age RangeAdult
Number of Speeds21
Wheel Size26 Inches
Frame MaterialAluminum
Suspension TypeFront
Motor350W (peak 500W)
Max Speed20 Mph
Battery468Wh / 36V 13AH Removable Battery
BrakeFront & Rear Disc Brakes
Charging Time3-4 Hours
Vehicle Weight48.5 lbs
Derailleur7 Speed Gear
Recommended Height4.95-5.7ft
Estimated Max Range28-35 Miles
Included ComponentsElectric Bike, Charger
Brake StyleDisc
Item Weight49.6 Pounds
Voltage36 Volts
Model NameMonster 100
Maximum Weight Recommendation485 Pounds
Package Weight63.9 Pounds
Suggested UsersUnisex-adult

User Reviews & Ratings

User reviews


I was very impressed with the Oraimo Monster 100. I run this bike uphills, downhills, bike paths, and trails. The bike performs well with no issues. The speed was good, at 20mph.

Brittany Dawson


This is my first electric mountain bike, The experience with the bike is good. I can get 20 miles to 25 miles range with out peddle assist.



Tires cannot safely handle cracks in roads, pavements, or wet grass. Even a steel hose in a driveway has caused three accidents, resulting in injuries.

Lincoln Duncan

User ratings by feature

Ease of assembly
Build quality
Value for money
Battery life


Average Rating By Users


Expert Reviews

Electric Revolution

Awesome bike for the price! | Oraimo Monster 100

The Oraimo Monster 100 may not be a monster of a bike, but that’s really the only thing I didn’t like about it. It’s a legitimate bike for the price, and I’m more than happy with how it’s held up.

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Jack Cecil

Oraimo Monster 100 | Low Cost Transportation?

This is an electric bike from Oraimo. This is the Oraimo Monster 100 electric bike. It’s a compact bike with a 350-watt hub motor. First, I’ll charge it up, and then we’ll take it to the farm.

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1. How fast can the Oraimo Monster 100 go? 

The Oraimo Monster 100 has a top speed of 20 mph.

2. Is the Oraimo Monster 100 a good e-bike?

Yes, the Oraimo Monster 100 is a great option for riders who are looking for an affordable and reliable electric bike. It is not the most powerful bike on the market, but it offers a lot of features for the price.

3. How far can the Oraimo Monster 100 go on a single charge?

The Oraimo Monster 100 can go 22 miles on a single charge.

About Author

Henry Taylor

Hello, I’m Henry Taylor, your friendly product expert. I’m passionate about making your shopping decisions easier. I’m here to provide you with clear, honest advice. Stay tuned for regular updates and in-depth reviews to help you shop smarter and find the best products for your needs.