In this article, we compare the Razor RSF350 vs RSF650 electric street bikes – two of the most popular models in Razor’s range. Although they share the same street-bike styling, they target very different age groups.
Let’s see how they compare to each other and which is best. First we have a quick comparison table of the key features of the Razor RSF350 vs RSF650. Then we look at the main differences between them and the advantages of each bike, in turn.
Finally, we’ll summarize the pros and cons of both rides, to help you make the right choice for your kids, or even for you!
Razor RSF350 vs RSF650 – Quick Comparison
The RSF350 was our top Street Bike for young ones when we reviewed the best electric dirt bikes for kids and youths recently. But how does it compare to the RSF650?
In the table below we’ve summarized the most important features of each bike in a side by side comparison, to make it easy to see the differences between them.
| Razor RSF350 | Razor RSF650 | |
|---|---|---|
 |  | |
| Description | Small electric street bike with variable speed and rear disc brake | Large electric street bike with variable speed, rear suspension and dual brakes |
| Age Range | 5-10 * (see note below table) | 10-16 * (see note below table) |
| Colors | Red | Black |
| Weight Limit | 140 lbs | 220 lbs |
| Top Speed | 14 mph | 17 mph |
| Price | $$$ Check Price | $$$$$ Check Price |
| Battery System | 24V (2 x 12V) sealed lead acid - charger included | 36V (3 x 12V) sealed lead acid - charger included |
| Battery Life | Up to 30 minutes of continuous use | Up to 50 minutes of continuous use |
| Battery Recharge Time | 12 hours | 12 hours |
| Motor and Gearing | 350W, high torque, chain driven | 650W, high torque, chain driven |
| Throttle | Variable speed, twist grip | Variable speed, twist grip |
| Brakes | Hand operated rear disc | Hand operated front and rear disc |
| Suspension | None | Rear shock suspension |
| Seat Height | 20" | 24" |
| Handlebars | Adjustable angle, riser style, with soft rubber grips | Adjustable angle, riser style, with soft rubber grips |
| Tires | 10" pneumatic tires on 3-spoke mag wheels | 12" pneumatic on 10-spoke mag wheels |
| Product Weight | 51 lbs | 102.6 lbs |
| Assembled Dimensions | 43.7" L x 22.8" W x 29.5" H | 53.3" L x 26" W x 30.7" H |
| Assembly Time | 15 minutes | 15 minutes |
* Note on Age: Razor’s recommended age for the RSF350 is a highly conservative 13+ but an age range of 5-10 (real world guide from many buyers) with parental supervision may be more suitable. Because it is very small – the seat height of 20″ is at least 14″ lower than a regular, adult sized street bike…
Similarly, Razor’s recommended age for the RSF650 is 16+ which is also very conservative. An age range of 10-16 (real world guide from many buyers) with parental supervision may be more suitable. Although the seat height of 24″ is higher than the RSF350, it is still 10″ or more lower than an adult bike.
Check out the videos in the next section for some real world views of the appropriate ages for these electric street bikes.
Main Differences
The biggest difference between both bikes is the size and age of rider that each was designed for.
The Razor RSF650 is the big brother of the RSF350 – it has a 20% larger frame with 4″ higher seat, bigger wheels and it weighs twice as much (102 lbs vs 51 lbs). The RSF650 supports a heavier rider (220 lbs vs 140 lbs) so is more suitable for teens whereas the RSF350 is aimed at kids aged 5-10.
Thanks to a more powerful motor (650W vs 350W) and extra battery (36V vs 24V) the Razor RSF650 has a higher top speed (17 mph vs 14 mph) and gives a longer ride per full charge (50 minutes vs 30 minutes). It also has rear suspension and dual disc brakes whereas the RSF350 has no suspension and only a single brake.
Check out the video below for a look at the little Razor RSF350 street bike in action:
For comparison, here is the larger Razor RSF650 powerhouse on the streets:
Advantages of Razor RSF350
Being the smaller bike does give the RSF350 some advantages over the RSF650:
- Better height for very young children – the RSF350 seat height is 20″ which is 4″ lower than the RSF650
- The frame is also 20% smaller which makes it a good size for small children and easier to store or transport
- It is 50% lighter (51 lbs vs 102 lbs) so is a lot easier for small kids to ride and to lift back up off the ground if it falls over
- MSRP (Manufacturer’s Suggested Retail Price) is $300 cheaper than the RSF650 – but check the actual prices below
Advantages of Razor RSF650
The larger RSF650 enjoys many advantages compared to its little brother:
- It is a better size for older kids and teens – the frame is 20% larger and the RSF650 seat height is 24″ which is 4″ higher than the RSF350
- The Razor RSF650 is the joint fastest Razor electric bike. The more powerful 650W motor gives it a higher top speed (17 mph vs 14 mph) and faster acceleration
- Higher maximum load (220 lbs vs 140 lbs) means it can easily cope with the weight of teens or small adults
- Rear shock suspension provides a smoother ride and improved handling – the RSF350 has no suspension so the ride can be quite stiff and unforgiving over bumps
- Dual disc brakes help stop more quickly and safely (RSF350 has only a single disc brake at the rear)
- Larger wheels give better traction and ride comfort (12″ vs 10″ on the RSF350)
- Longer battery life (50 minutes continuous use vs 30 minutes) means you can have longer rides and more fun before it runs out of power
Pros of Both Bikes
Here is a summary of what we love about both models:
- Adjustable angle handlebars can adapt to fast growing kids
- Fast enough to be a thrilling ride but slower than most gas powered bikes which minimizes the risks of a high speed crash
- Rubber pneumatic tires (unlike plastic tires of cheap bikes and ride on toys) can tackle many ground conditions including some light off-roading
- Handy storage compartment (for a water bottle or gloves etc) is hidden in the top of the trellis-frame chassis
- Steel frame with authentic street bike styling
- No pollution (compared to a gas powered bike).
- Quieter than a gas powered bike and requires much less servicing
- Razor is a long established US manufacturer – spare or replacement parts are readily available from their website
Cons of Both Bikes
Here is a summary of what we don’t like so much about both models. But most of these issues are common to all electric bikes in this price range:
- Relatively short battery life. But 30 or 50 minutes is still enough to cover 7 miles (RSF350) or 14 miles (RSF650)
- Battery full recharge time is up to 12 hours so charging needs to be planned (or you could buy a spare set of batteries to switch over instantly)
- No headlights or rear lights – can only be driven in daylight
- Helmet and protective clothing may be uncomfortable in hot weather (see the Safety section of our buying guide for electric bike safety gear)
- Must be stored in a dry area, due to the electrical components
- Batteries must not be stored in temperatures below freezing and should be recharged at least once a month
Conclusion
The smaller, lighter frame and lower seat of the RSF350 make it the best choice for very young kids, especially those who are new to electric bikes. The lack of any suspension won’t matter much if they rarely go off-road and it’s quick enough to have fun while minimizing the risk of high speed drama.
However, the larger and heavier frame of the RSF650, and bigger tires, make it an awesome, grown up choice for older kids and teens. With a top speed of 17 mph the RSF650 is the joint fastest model in Razor’s range of electric bikes but it comes with good safety features, thanks to rear shock suspension and dual disc brakes.
Owner’s Manuals
The Razor RSF350 manual is available in PDF format here.
The Razor RSF650 manual is available in PDF format here.
NOTE: A parent’s decision to allow their child to ride either the Razor RSF350 or the Razor RSF650 electric street bike should depend on the child’s individual maturity, skill and ability to follow rules.