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BRM100 Mini Dirt Pit Bike 105cc 4-Stroke Off Road for Teens Adults 220 LBS

  • Based on 280 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by Oryxearth Flagship Store

Arrives Sep 23 – Sep 27
Order within 3 hours and 3 seconds
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Color: Skull


Set name: Basic


Features

  • Powerful Performance This 105cc 4-stroke mini bike outpowers standard 99cc 4-stroke dirt bikes, sips fuel, and runs on plain 87-octane regular gas or higherno oil mixing required. It tops out at 30 mph, hauls up to 220 lbs, and its 0.36-gallon tank delivers about 30 miles per fill-up.
  • Chain Tension : Oryxearth mini bikes come with a durable tensioning mechanism built specifically for chain control. It keeps the chain at ideal tightness throughout every ride, avoiding slip, jump, or drop-off. Prevents chain detachment under different load conditions, giving you smoother, more dependable trail performance.
  • Great for Kids & Adults Alike With a 23-inch seat height, this mini dirt bike fits riders from 4'3" to 5'9" and under 220 lbsgreat for kids, teens, and adults. The pull-start is so easy even a child can handle it. Recommended for ages 13+, it's ideal for beginners and makes a fantastic gift.
  • Built Tough and Safe This gas mini bike features a heavy-duty clutch and solid steel frame, built to withstand years of hard riding. The rear disc brake delivers reliable, smooth stopping power, while the big low-pressure knobby tires provide excellent traction and stability on dirt, gravel, and rough trailskeeping you in control on any terrain.
  • Easy to Assemble The gas bike ships about 90% pre-assembledjust install the handlebar clamp and front wheel. It includes a 60-day warranty on parts and 90 days on the engine. For defect-related returns, we offer a free prepaid return label within 60 days; please keep the original packaging.
  • Safety Disclaimer This gas dirt bike is for proper use in safe environments only. Stunts, wheelies, and jumping are strictly prohibited. We assume no liability for injuries or damages from misuse, negligence, or improper handling. Unauthorized modifications to core engine components or use of non-original certified parts will void all after-sales support.

Brand Name: Oryxearth


Sub Brand: oryxearth


Age Range Description: Adult


Item Highlight: 3.5HP EPA-Approved Engine, Up To 30 Mph, Rear Disc Brake, 145/70-6 Knobby Fat Tires, Pull-Start, 90% Assembled, Skull, Basic


Number of Items: 1


Included Components: frame


Manufacturer: Oryxearth


Model Number: Mini Bike


Manufacturer Part Number: HCf001A


Set Name: Basic


Manufacturer recommended age: 13 years and up


Size: Large


Item Weight: 88 pounds


Item Dimensions L x W x H: 50"L x 26"W x 33"H


Weight Capacity Maximum: 220 pounds


Item Dimensions: 50 x 26 x 33 inches


Material Type: Metal


Theme: Sport


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 23 – Sep 27

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


  • Highly recommend
Color: Red Set name: Max
Ordered this bike a few weeks ago and my son & I just got around to assembling it last night with no issues. Everything went together smoothly and the build quality is great for the price. We researched a lot of bikes and pricing as this is my 12 year old son's 1st bike; and so far we are very happy with the OryxEarth bike :) NOTE: it is recommended to add then change the oil (10W-30) after 30 minutes to 1 hour after riding and priming the engine to make sure you flush out any debris or metal grit that might be floating around the engine. We read this in our research and followed the instructions and definitely saw blackened oil and some minor grit during our oil flush. Looking forward to messing around with the governor for some more speed. The bike goes 25 mph right out the box. ... show more
Reviewed in the United States on March 8, 2025 by Michael Michael Motorcycle

  • Durable
Color: Skull Set name: Max
Nice bike last about a day with out filling up pretty good and reliable very good bike
Reviewed in the United States on July 28, 2026 by Jordan fletcher

  • At most important it's just great
Color: Skull Set name: Plus
The little thing is awesome
Reviewed in the United States on August 18, 2026 by Cory

  • Great little starter bike!!!! Youngsters will quickly get comfortable with it.
Color: Red Set name: Max
Easily assembled, great little starter bike. Oil filling was slow but grandson loves it.
Reviewed in the United States on June 6, 2026 by Sharron McClain

  • Everything you need to know
Color: Camo Blue Set name: Plus
Around the size you’d expect I guess. I’m 5’9 and leg room isn’t an issue. Unfortunately the switch to turn the engine off on the handle bar is loose and wont tighten, I’m pretty sure it’s somehow broke but that’s not a problem for me at the moment. The throttle was also loose and it would cause it to flip the kill engine switch but I was able to tighten that to fix it. The throttle also has a big dead zone before it actually starts to give it gas which bothers me but doesn’t seem to be a real problem yet. Also I’m not sure if it’s because of user error and I didn’t tighten something enough or what. But when you’re speeding up and getting closer to top speed, something in the front and I wanna say it’s the fender that’s over the wheel. But it makes a violent vibration sometimes and caught me off guard. (EDIT: After 2 months of use I can say that it went away). Putting it together was also pretty easy too. The only thing I really don’t like is where the motor oil goes due to it being in such a tight spot. The bike comes with a squirt bottle I’m assuming to put oil in the oil the clutch but I’m pretty positive it’s not for filling the motor with oil. But it was pretty difficult considering the hole isn’t angled for an easy pour. I ended up using a funnel and it still leaked everywhere. And it didn’t work with the bike flat on the ground so I had to find a way for the front end to sit higher. So just be aware of that difficulty. All in all it seems to be worth it at the moment. Also you can choose any color when purchasing because it arrives with each of the colored stickers for you to choose from. Update found 2 spots that require 2 screws to keep the gas tank attached to the engine. Ironically it’s the 2 screws I thought were backups and not needed anymore since that wasn’t included in the instructions. Doesn’t cause rattling or anything without the screws but does cause it to be loose which is unsettling and risky. Edit: I’ve had this bike for about 2 months now and found a few problems. First of all, the gas tank, which I haven’t figured out yet, will randomly start leaking gas out of the cap. Mind you I tighten it a lot. It’ll randomly start leaking gas out of nowhere but hasn’t caused any serious issue other than a slight leaks every now and then. Secondly, when running at half throttle or around. The bike will run rough and jumpy. And last, I’ve noticed that if I got from full throttle and even slowly let off throttle to a idle and coast that the engine sometimes likes to turn off while riding (Only when let off the gas and coasting). It’s only happened twice and would start back up after a few cranks. To counter those problems, I’ve only filled up my 2.5 gal gas can twice. This bike is extremely gas efficient and will run forever. To conclude it’s still definitely worth the purchase but it does definitely need to be kept up with and maintained. ... show more
Reviewed in the United States on March 30, 2023 by Hector

  • Lovely
Color: Black Set name: Max
Gift, person love it
Reviewed in the United States on August 14, 2026 by Amazon Customer

  • Awesome fun
Color: Camo Red Set name: Basic
Perfect size for my kids (13 & 9 I bought 2). Assembly was easy. My 13 yr old did it. They ride these bikes every day almost and have a blast. Well worth the money. They came with multiple colored decals as well. After not riding all winter they started up again a week ago and read the update UPDATE: The chain constantly comes off. It is way to loose and the adjustment isn’t near enough. I am changing my 5 star to 1star due to the headache. About 5 min of ride time and have to put the chain back on. I wouldn’t buy this again and regret my purchase ... show more
Reviewed in the United States on April 5, 2026 by Joe Baker

  • Love to ride
Color: Black Set name: Plus
Son loves bike but did some upgrades to it!
Reviewed in the United States on August 1, 2026 by Amazon Customer

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