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FRP

[Starts Right Up] FRP MB40 4-Stroke Mini Bike, 40CC Kids Mini Dirt Bike with No Mixing Oil Need, Easy to Assemble/Touch Protection, 18 Mph Max Speed and Support Up to 165 LBS (Red)

  • Based on 48 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by Feel Real Power

Arrives Jun 5 – Jun 9
Order within 20 hours and 50 minutes
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Color: Red


Features

  • 40CC 4-Stroke Engine:Compared to 2-stroke engines, our 4-stroke design offers stability and reduced noise. Grows With Young Riders Reinforced frame tested to 165LBS capacity adapts to your childs development, from first rides to confident cruising.Designed for 10W-40 oil, ensuring smooth cold starts and reliable lubrication in diverse climates.
  • Easy to Assemble:Easy Assembly Mini Bike. All tools included.Single-side maintenance - Replace components without full disassembly.Unified bolt system for fenders/seat/chain cover. Pre-installed fork & welded nuts - ready to ride in minutes!"
  • Easy Start : Starting your adventure with FRP mini bikes is a breeze Typically just pull on the pull-start and you're good to go Refuse to complicated starting processes.This feature ensures that even young riders can get moving quickly and easily.
  • WORRY-FREE CUSTOMER SERVICE: The 40cc Mini Bike for kids Gas Powered provides a comprehensive 60-day customer service. NO COST PARTS REPLACEMENT and a PRE-PAID RETURN LABEL and 365-day customer support available ensure that customers can be provided with technical support at any time.
  • SAFETY DISCLAIMER: This product is intended for proper use in safe and appropriate environments only. Dangerous riding behaviors such as wheelies or jumps are strictly prohibited. The company shall not be held liable for any injuries or damages resulting from improper use or handling of the product.

Brand Name: FRP


Manufacturer Maximum Age (MONTHS): 156


Age Range Description: 13+ Kids


Manufacturer Warranty Description: 60 Days


Manufacturer Part Number: MB40-RED-B


Model Number: MB40


Manufacturer: FRP


Unit Count: 1.0 Count


Included Components: Front fender, Front fork, Front wheel, Handlebar, MB40 Mini Bike


Size: Basic


Item Weight: 46 Pounds


Item Dimensions L x W x H: 38.5"L x 20"W x 11"H


Weight Capacity Maximum: 165 Pounds


Item Dimensions: 38.5 x 20 x 11 inches


Material Type: Alloy Steel


Theme: 4 Stroke Stronger Power, 40 CC Gas Powered, Dual Disc Brake, For 13+ Kids, Max 165 Pounds, Max 18 Mph, Multi-Speed


Is Assembly Required: Yes


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 5 – Jun 9

This item is non-returnable:

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

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Mini bike was a hit! Mini bike was a hit!
I purchased this black mini dirt bike for my 13-year-old son, and he absolutely loves it! From the sleek design to the solid performance, this bike has exceeded all our expectations. The 99CC 4-stroke engine provides just the right amount of power, and with a top speed of 28 mph, it’s perfect for him to enjoy safely while having a blast. The bike is incredibly sturdy, with a durable build that easily supports his weight. It’s the ideal size for him, and he’s been riding it every chance he gets. Assembly was simple, and the engine started up without any hassle. It’s also very fuel-efficient, which is a nice bonus. This bike is an excellent choice for kids or teens who want a reliable and fun ride. Seeing my son’s excitement and happiness when he’s out riding makes this purchase one of the best decisions I’ve made! Highly recommended! ... show more
Reviewed in the United States on January 8, 2025 Reviewed in the United States on January 8, 2025 by Charles M.

  • Very fun and easy to assemble
Color: Red Max
Excellent mini bike for younger riders. We have a very tall 8 year old (4’6”) that loves this mini bike. We purchased this bike so he could get familiar with riding and it’s been perfect. Very easy to assemble and maintain. Runs very well and have had zero issues. Just make sure to change the oil in accordance to the manual and this bike will run smoothly. ... show more
Reviewed in the United States on October 23, 2025 by Mike and Cristy

  • Good bike
Color: Red Max
This is a good bike, but it is very small. I should have checked dimensions of it, as I was expecting a larger bike. I would say it is a better size for a 7 or 8 year old, but my 10 year old was happy to get it and has been riding it almost nonstop. He is 5'3 and 110 lbs. I can ride it too and I am 5'8 155 lbs., just not very comfortably. It doesnt go super fast, which i like, but probably could if you had it on a road or concrete. We drive it around the yard with no problems. The string to start it did break on the first day, but we got it fixed and are satisfied. Overall recommend, but check the size. None of the things that came with it fit my 10 year old. The gloves and pads were all too small. ... show more
Reviewed in the United States on December 31, 2025 by Chensley

  • Happy Son with a new motorcycle
Color: Red
10 out of 10 for this product! My son is thrilled with his motorcycle; it’s very fuel-efficient and excellent quality—100% recommended. I have a 7-year-old, and I won't hesitate to buy another one for him.
Reviewed in the United States on May 10, 2026 by Felipe de jesus Romero Peñaloza

  • DO NOT BUY! DO NOT BUY!
The motorbike truly sucked! I purchased for my 13 year olds birthday. For one.. if your buying this bike for anyone over the age of 9, change your mind now its so tiny and doesn't get up and go well not much power. Since there were other teens on reviews thought itd be fine for mine. It's literally built for a 6 year old. Besides that, the item came with damaged back tire which was terrible because I opened it the day before her birthday to put it together. Customer service was a complete let down they took a whole day to write back a sentence that didn't help me move forwardwith the return. It took 3 weeks to get a refund in the form of check, which I still haven't received. If you plan on buying this make sure there's a mechanic in the family and your child is small. Don't waste your time the whole ordeal was more frustrating pick a different bike. ... show more
Reviewed in the United States on September 1, 2025 Reviewed in the United States on September 1, 2025 by Mamaleah1991

  • Great Value and super fun
Our 11 year old son loves it. It has a decent top speed, good acceleration. it was super easy to put together and has no issue firing it up. Little tricky to get oil in, but came ready besides gas. small gas tank so if they ride all day they'll need to fill up, but overall great value for the money. And you can get replacement parts if needed instead of just having to throw the whole thing for scrap, so with good TLC should last. Kid can start it up easy, too, but the first few times learning how to use the choke might be a good lesson. ... show more
Reviewed in the United States on August 9, 2025 by Rufus Luciano

  • Fun with Faulty Design Fun with Faulty Design
Color: Red
In general this is a cool, relatively inexpensive way to get younger kids started with motors and bikes. The problem with this is in the engine design. The gearbox is connected to the motor by a thin metal cup which looks like aluminum. The cup breaks and the engine runs without driving the rear wheel, so it doesn't move. The first time it broke was 2 weeks after we purchased it. It was covered under warranty so they replaced it without charge. After it sat inside of a heated garage for winter, it broke again this spring. Because it is outside the two month warranty window, you have to buy a new gearbox from the FRP website. $30 isn't ridiculous, but if they would just fix the design of the gearbox, it would not be an issue. My kids love their bikes, but having to replace the gearbox every 4-6 engine hours is a little excessive. ... show more
Reviewed in the United States on May 4, 2026 Reviewed in the United States on May 4, 2026 by AM

  • FRP MB40 4 stroke mini bike FRP MB40 4 stroke mini bike
Color: Red Max
I purchased this for my 4 year old daughter for Christmas. I was expecting her to not be able to handle the weight of the bike very well at first. This bike was delivered quickly, extremely easy to put together and fired right up the first time I turned it on. She of course was extremely happy, and handled this bike easily. Its alot of fun to use, extremely safe for the little ones and absolutely the cutest bike ever! I highly recommend anyone to purchase this bike for their kiddos! ... show more
Reviewed in the United States on January 23, 2026 Reviewed in the United States on January 23, 2026 by Michael Olvera

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