Razor SX500 McGrath Dirt Bike (Specs & Review)

In recent times, a rising variety of dust bike choices have turn out to be accessible for younger riders. Carbureted 50-cc Yamahas, KTMs, or Suzukis not monopolize this sub-segment. Furthermore, the well timed creation of electrical bikes just like the Razor SX500 McGrath Grime Bike within the final decade has made make-and-model choices various and higher suited to shopper preferences.

The Razor SX500 is an MX-style bike made for the younger dust rider. That includes a 500-watt electrical motor, variable-speed chain drive, dual-suspension, and Jeremy McGrath graphics, SX500 is the right instrument for fostering pleasant competitors and enjoyable whereas going for a spin from hell to breakfast.

Its McGrath-inspired construct, supercharged motor, and high-torque drivetrain are proof of the considerate planning that goes into the making of the Razor SX500. Study its specs, options, buyer opinions, and extra, as this information helps steer you in direction of your subsequent huge buy.

Young Child Dirt Bike

About Razor SX500 McGrath Grime Bike

Calling the Razor SX500 McGrath one of the best electrical dust bike available in the market could also be a daring assertion. However given its aptness in dealing with velocity, dust, and MX-style tracks, it’s deserving of such an outline. It’s on par with Suzuki DR-Z50, Honda CRF50F, Yamaha TT-R50E, and KTM SX 50 within the dust biking phase. Moreover, it is likely one of the most fairly priced e-bikes, rivaled solely by the Kuberg Cross X-Power Professional.

Nevertheless, the value level just isn’t its greatest attribute. What homeowners love most concerning the bike is its Supercross orientation and distinctive framework geometry personally designed by SX champ Jeremy McGrath. On the outside, the SX500 appears very very like the motocross wheelers utilized by the famed “King of Supercross.” However for critical, in-training racers, there’s nonetheless so much available within the bike’s potential to assist freestyle motocross and BMX driving.

Razor Grime Rocket SX500 Specs & Options


As a substitute of a carburetion or gas injection system, the Razor SX500 makes use of a 500-watt electrical motor operated with the assistance of a 36-volt battery community. This makes the MX bike hassle-free and eco-friendly because of the absence of poisonous fumes or gases ensuing from combustion. Plus, it lends to a top-speed score of as much as 15 mph (24 km/h) at full pelt.


A variable-speed high-torque chain drive delivers energy to the wheels and is mated to the SX500’s supercharged motor and twist-grip acceleration management. The mix lends to ease in climbing steep inclines and traversing difficult terrains. It’s not clearly said within the service guide whether or not the powertrain consists of a number of gears with derailleurs or inner gear hubs. Nonetheless, sustaining the right-spoke rigidity and chain-sprocket alignment is extraordinarily necessary. The identical goes for making use of an ample quantity of lubricant on elements to maintain them from grinding or drying up.


The Razor SX500 is dropped at life by three (3) rechargeable, 12V lead-acid batteries, a management module, and a triple-fuse field. There isn’t any particular battery format like UB12120ZH or UB12150K advisable for the SX500 McGrath, as one’s alternative will rely upon choice for an extended-range battery sort or one thing much like inventory.

Modification kits for the Razor SX500 Grime Bike can be found for mechanically savvy homeowners and are already pre-wired. They merely require mounting a sizeable controller and a bigger battery pack becoming 4 to 5 batteries to the inventory body. The marketed run time for a completely charged battery community is 40 minutes of steady use. Nevertheless, this will attain as much as 75 minutes – relying on the terrain, driving velocity, and rider weight (amongst different elements).

Tires & Brakes

Its tire-and-wheel meeting is one in every of, if not essentially the most excellent function of the Razor SX500. The stated meeting presents a hand-operated, dual-disc braking system – dependable entrance and rear brakes offering on-tap halting energy, to not point out an added security measure for younger riders. The brakes pair with pneumatic, knobby tires that present stability on irregular surfaces and motocross tracks.

Tread patterns of inventory 16-inch entrance and 14-inch rear tires are engineered for enhanced efficiency on slick surfaces and cornering at slender angles. These tires work properly with sturdy brake discs able to enduring excessive affect and stopping the edges from flexing off form. Extra importantly, the on-hand brakes are intuitive, boosting rider confidence whereas holding children protected.


Inverted, double-crown entrance forks and rear shock absorbers comprise the Razor SX500’s twin suspension system. Its elements are enclosed in a sturdy metal body with an aluminum beam and mated to outsized Supercross tread tires. Moreover, adjustable riser handlebars help with rider consolation and the dust bike’s ease of maneuverability.


General dimensions of this mini bike are 1,422 x 914 x 622 mm (56 x 36 x 24.5 inches – L x W x H). Dry weight sans equipment is 44 Kg (98 lbs.). Regardless of its minimal mass, the SX500 can assist a weight capability of as much as 79 Kg or 175 lbs., though long-time customers advise holding the rider weight restrict inside 63.5 Kg (140 lbs.). GVWR or Gross Car Weight Ranking is estimated at 124 Kg or 273 lbs. Upgrading the dust bike with a 5-battery pack and mod package could improve this determine by not less than 7 Kg.


On the skin, the Razor SX500 McGrath is a devoted copy of the bike Supercross huge shot Jeremy McGrath used to win championships. This idea is clear within the SX500’s particular decals and is the one distinction between a Razor MX500 vs SX500. Conversely, its inexperienced physique coloration is consultant of McGrath as a former spokesperson for Kawasaki dust bikes. As for manufacturing facility inclusions, a retractable kickstand, folding steel footpegs, #2 pro-racing quantity plate, and shatter-resistant plastic fairings got here customary with the Razor SX500.

Price of a Razor SX500 Grime Bike

The unique record worth for the Razor SX500 McGrath Dirt Bike (view on Amazon) falls between $549 and $799.95, relying on the place it was purchased and whether or not promotions or Halloween specials existed the time of buy. This base-price vary applies to all manufacturing fashions – together with public sale listings and resale values. Walmart, Amazon, and eBay are good websites to take a look at if you wish to get your arms on a brand-new or pre-owned bike.

Buyer Suggestions on the SX500

Child Dirt Bike Off-Road

The Razor SX500 McGrath Grime Bike predominantly will get good opinions from children and oldsters alike. Of those opinions, homeowners specific their pleasure over the supercharged bike. It’s removed from having the facility, velocity, and adeptness of a pro-class motocross racer. However by way of enjoyable issue, functionality, and security, it doesn’t disappoint.

Ease of Use

For a motorcycle and not using a typical engine and lubrication system, the Razor SX500 is simple to drive. Options like its twist-grip throttle, dual-disc handbrakes, and absolutely adjustable handlebars make steering handy and the bike simple to maneuver. Motorbike-spec tires and inventory dual-suspension stop rollover and make for a smoother experience. Plus, the bike’s construct renders it sufficiently secure and able to dealing with rider weight of as much as 175 lbs.


The run time of the battery is a distinct matter altogether. Whereas others have reported as much as 75 minutes of steady use, most riders aren’t precisely proud of the 40 minutes it often offers. They discover this missing, given the bike’s triple-battery community. To not point out it takes 12 hours to fully cost the SX500.

Whereas the battery’s restricted service life is sweet information for fogeys who are not looking for their youngsters driving too distant, it may be troublesome for youngsters. A great workaround to this downside is buying a second (or third) battery to have readily available – both that or modifying the battery community to assist 4 to 5 batteries.

Rider Consolation

Patrons are additionally conflicted with rider consolation. Though the SX500 is advisable for younger riders 14 years outdated and over, its dimension doesn’t appear to wholly cater to this age group. Regardless of its slim framework, adjustable-angle, and riser-style handlebars, taller youngsters discover themselves having hassle driving the bike. The texture is nothing like a Monkey Bike, however children with longer inseams could find yourself buying a foul posture placing their leg over this uncomfortable wheeler.


The principle disadvantage of the Razor SX500 for many riders is the standard of its plastic elements. This isn’t to say the bike compensates in dependability what it lacks in sturdiness. However because it seems, that is the case for the SX500 McGrath. The entrance fender tends to interrupt simply and isn’t advisable for storage in a storage the place the temperature exceeds 50°C – 60°C. Furthermore, it’s not as impervious to a beating as younger, aggressive youngsters would have hoped it to be, making it extra appropriate for teenagers aged 8 to 12 greater than 14-year-olds.

About Razor

Razor (formally generally known as Razor USA LLC) is a California-based designer and producer of guide and electrical bicycles and scooters and an rising key participant within the dust biking phase. Established in 2000 by Carlton Calvin and the JD Company, the agency made its presence recognized within the business with its first-ever product – the Mannequin A Scooter. It has continued to reinvent old-school scooters since and even added electrical minibikes, private transporters, skateboards, and the Razor Grime Bike SX500 to its plethora of choices.

Conclusion – Razor SX500 McGrath Grime Bike

All in all, the SX500 Razor is an irresistible, candy deal for novice and intermediate riders alike. For an MSRP of lower than $800, you get to personal this thumper with top-notch security options, cutting-edge know-how, and spectacular workmanship. Certain, its velocity and torque output could also be barely held again. Nonetheless, it’s a dust bike befitting motocross racetracks – an entry-level wheeler even in-training aggro-riders will discover tough to outgrow.

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