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Razor

Razor Dirt Rocket SX500 McGrath Electric Motocross Bike for Kids Ages 14+ - 40 mins of Ride Time, For Riders up to 175 lbs

  • Based on 828 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Jan 21
Order within 10 hours and 8 minutes
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Features

  • Inspired by the winningest motocross rider in history, Jeremy McGrath
  • Complete with authentic McGrath graphics and fairing design, genuine dirt bike frame geometry and a high-torque, Variable speed motor for a super-charged experience
  • Carries riders at speeds of up to 15 mph with 40 minutes of continuous use
  • Features dual suspension and riser handlebars, large pneumatic knobby tires, retractable kickstand, and hand operated dual disc brakes. Recommended for ages 14 and up; supports riders up to 175 pounds
  • 36V (three 12V) sealed lead acid rechargeable battery system

Description

It's ShowTime! what do you get when you combine the winningest motocross rider in history and the Razor product making machine the all new Jeremy McGrath Sx500! with authentic MX frame geometry and faithful reproduction of Jeremy's big bike, we offer you the perfect product for your little champion! motorcycle-spec tires with front and rear specific tread, disc brakes and dual suspension make this electric ride ready to Rock the dirt. Authentic dirt bike frame geometry and a high-torque, variable speed motor deliver a super-charged experience. Large tires ensure a smooth ride and maximum power transfer for climbing those dirt hills ahead. Reaches speeds up to 15 MPH with 40 minutes of continuous use. Features a variable speed, high Torque, chain driven motor with twist-grip acceleration control and hand operated dual disc brakes, spoked aluminum wheels with 10 x 250 super cross treaded pneumatic tires, dual suspension, adjustable riser handlebars, soft rubber grips, double crown fork, folding metal foot pegs and retractable kickstand. Also includes, steel frame construction with shatter-resistant plastic fairings and 36V (three 12V) sealed lead acid rechargeable battery system with charger. 12 hours recommended battery charge time. The buyer and rider of the Razor Sx500 are responsible for knowing and obeying all local, state and federal regulations regarding the riding and use of all Razor electric vehicles and scooters.

Item Package Dimensions L x W x H: ‎46 x 26 x 13 inches


Package Weight: ‎51.26 Kilograms


Item Dimensions LxWxH: ‎56 x 36 x 24.5 inches


Item Weight: ‎7 Pounds


Brand Name: ‎Razor


Warranty Description: ‎90 Days


Model Name: ‎SX500


Color: ‎Sx500 - Green


Material: ‎Alloy Steel, Metal, Plastic, Rubber


Suggested Users: ‎unisex-teen


Number of Items: ‎1


Manufacturer: ‎Razor USA, LLC


Part Number: ‎15128180


Model Year: ‎2019


Style: ‎Sx500 (Green)


Included Components: ‎Razor Dirt Rocket SX500 McGrath Electric Motocross Bike - FFP


Size: ‎One Size


Sport Type: ‎Outdoor Lifestyle


Date First Available: January 3, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jan 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Bought for an 8yr old kid
Very good product. I bought for a 8 years old kid and I was afraid to be too big bike. However it’s a perfect size for this age. Speed is not a big concern son can easily manage that. Very easy to assembly and I feel quality in all materials used. I recommend this bike
Reviewed in the United States on December 15, 2025 by Clayton Rodrigues
    • Great first electric dirt bike!
The media could not be loaded. Got it for our small 9 year old boy for Christmas. Its the perfect size for him and he'll have a few really good years with it. Im 143 lbs and I rode it and it went fast. My tall 5' 3" 13 yr old was able to ride it too at full speed. Assembly was really easy. All you have to do is put the handlebar and front wheel on (had my brother do it lol). It DOES NOT feel like a little ride on toy either. Great buy. Will update later if anything changes or not 😊 ... show more
Reviewed in the United States on December 26, 2025 by Thomas
    • Great bike
The media could not be loaded. So to start this is a cool bike my son loves it,made his Christmas wis come true. This bike was easy to put together and charge. He road it Christmas morning and had a blast. Then Friday afternoon came and this happened, the sprocket on the rear wheel just spins when the throttle is twisted to go. I looked this up and some people say it's common for these,there is a fix for it but I'm going to reach out to razor first seeing as I just bought this and they should replace the rear wheel at there cost hopefully they do. Other than that it's a cool bike ... show more
Reviewed in the United States on December 27, 2025 by Amazon Customer
    • My son loves it
Best purchase, best for kids over 5, goes very fast.
Reviewed in the United States on December 10, 2025 by S. K.
    • I received a bad battery, BUT Razor sent me a new one. 5-stars if the original battery works.
I bought this bike for my son's birthday. Assembly was easy and I followed all the battery charging instructions very carefully. I had my wife take it on a short 1 min test run before we gave it to him. I expected somewhere around 40 mins of ride time. He was incredibly excited when we gave it to him. He hopped on, rode for about 2 minutes and then the bike started slowing down. After 3 minutes it wouldn't even move in the grass. The bike had a Razor customer support phone number to call if we had any issues with it. They were easy to get ahold of and diagnosed the issue as bad batteries. She used the bike's serial number to check the manufacture date and was able to tell me that this unit had sat on a shelf for more than a year. The batteries have very specific charging instructions and they do require monthly charging to keep the batteries working at their peak performance. I was given some instructions on sending in my receipt for replacement batteries. I was able to complete that step from my cell phone. I was told the batteries may take up to 2 weeks to get here. They were delivered before the 2 week time period. The new batteries work great. They were a little awkward to install because there are 3 batteries wired together with pretty short cables. Besides the batteries being wired together, the installation is not challenging. It took me about 30 minutes. Moral of the story - If you buy this bike from Amazon, buy it before you need it. Follow the charging instructions and do a full range test before you give it to someone. This bike looks awesome. It's fun to ride. The build quality seems impressive at this price. The decent build makes the bike heavy for a small kid, It's nearly 100 lbs. I bought it for a large and coordinated 5-year-old. I am a little crazy for trusting him with it, but hopefully he's going to have fun with this bike for several years. ... show more
Reviewed in the United States on September 12, 2022 by Kyle
    • Quality products by razor!
Easy to assemble and quality. Packaged well. Great buy! Perfect for my 9YO.
Reviewed in the United States on December 9, 2025 by jason
    • No warranty without paper copy of warranty card
Update: Replacement quit working after a month and a half. Used under an hour, 2-3 times a week. No accidents, nothing broken, just stopped working and does the clicking thing described in my original post. Original post: It stopped working on the first use after about half an hour. We recharged it overnight, but even on a full charge, it only clicks when the throttle passes each of the two speed levels. I reached out to Razor for a warranty claim, but they won't talk without the warranty number listed on a paper card that shipped with the product and was discarded after assembly. I don't know of any other product that can't be registered online using the serial number, so it went in the trash with the other packaging. Razor will not look up the warranty number using the serial or any other number, and the warranty number is not on the bike; it's only on the paper card. So, there is essentially no warranty without the small paper card. Fortunately, I can and will be exchanging the product through Amazon for the same model. Had this product broken after Amazon's return deadline, I would have no recourse. DON'T LOSE THE PAPER WARRANTY CARD!!! Otherwise, it's a good size for my boys (5 & 8). The 5 year old is one of the taller kids in class, but not the tallest, and he's pretty strong for his age. It's almost too big for him, but he's handling it well and is able to lift it on his own. It's probably exactly right for the 8 year old, and he's about average height. It doesn't go fast enough to frighten either of them (or me watching really), but it's plenty fast enough for them to love it. No faster than they can go on bicycles. However, because it's powered and heavy, they are required to wear a dirt bike helmet, not just a bicycle helmet. It seems well built and sturdy. It has functioning front and rear suspension and disc brakes. And it looks really cool. I've found other reviews and videos about the throttle and/or controller malfunctioning, which appears to cause the exact issue I'm having. From what I can tell, it's a $50 fix if you do it on your own and have the tools. But, I'm pretty shocked that Razor is trying to evade that by requiring a paper card for all warranty claims, using a "warranty number" instead of the serial number, and not printing a number on the bike that could be used to file a claim. I'll definitely hang onto that card when the replacement arrives. ... show more
Reviewed in the United States on January 18, 2022 by Zac
    • This is the only starter electric dirt bike you need
I bought this for my 9 year old son’s birthday and it’s a show stopper for his first dirt bike. It holds charge for quite a while we barely need to charge it. This is a quick bike with excellent height. The size is very adequate for 9 years old and up. I even ride it sometimes for fun.
Reviewed in the United States on October 22, 2025 by Kindle Customer

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